CVE-2025-21887
published 2025-03-27CVE-2025-21887: In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.19%
8.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issue was caused by dput(upper) being called before
ovl_dentry_update_reval(), while upper->d_flags was still
accessed in ovl_dentry_remote().
Move dput(upper) after its last use to prevent use-after-free.
BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
ovl_link_up fs/overlayfs/copy_up.c:610 [inline]
ovl_copy_up_one+0x2105/0x3490 fs/overlayfs/copy_up.c:1170
ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223
ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136
vfs_rename+0xf84/0x20a0 fs/namei.c:4893
...
Affected
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.133-1 (bookworm) | linux 6.1.133-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.133-1 (bookworm) | linux 6.1.133-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 5.10.188 < 5.10.247 | 5.10.247 |
| linux | linux | >= 5.15.121 < 5.15.179 | 5.15.179 |
| linux | linux | >= 6.1.39 < 6.1.130 | 6.1.130 |
| linux | linux | >= 6.3.13 < 6.4 | 6.4 |
| linux | linux | >= 6.4.4 < 6.5 | 6.5 |
| linux | linux | >= 62f29ca45f832e281fc14966ac25f6ff3bd121ca < 4b49d939b5a79117f939b77cc67efae2694d9799 | 4b49d939b5a79117f939b77cc67efae2694d9799 |
| linux | linux | >= 714ba10a6dd19752a349e59aa875f3288ccb59b9 < f77618291836168eca99e89cd175256f928f5e64 | f77618291836168eca99e89cd175256f928f5e64 |
| linux | linux | >= b07d5cc93e1b28df47a72c519d09d0a836043613 < 64455c8051c3aedc71abb7ec8d47c80301f99f00 | 64455c8051c3aedc71abb7ec8d47c80301f99f00 |
| linux | linux | >= b07d5cc93e1b28df47a72c519d09d0a836043613 < 3594aad97e7be2557ca9fa9c931b206b604028c8 | 3594aad97e7be2557ca9fa9c931b206b604028c8 |
| linux | linux | >= b07d5cc93e1b28df47a72c519d09d0a836043613 < 60b4b5c1277fc491da9e1e7abab307bfa39c2db7 | 60b4b5c1277fc491da9e1e7abab307bfa39c2db7 |
| linux | linux | >= b07d5cc93e1b28df47a72c519d09d0a836043613 < c84e125fff2615b4d9c259e762596134eddd2f27 | c84e125fff2615b4d9c259e762596134eddd2f27 |
| linux | linux | >= e4f2a1feebb3f209a0fca82aa53507a5b8be4d53 < a7c41830ffcd17b2177a95a9b99b270302090c35 | a7c41830ffcd17b2177a95a9b99b270302090c35 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.247-1 | 5.10.247-1 |
| linux | linux_kernel | >= 0 < 6.1.133-1 | 6.1.133-1 |
| linux | linux_kernel | >= 0 < 6.12.19-1 | 6.12.19-1 |
| linux | linux_kernel | >= 0 < 6.12.19-1 | 6.12.19-1 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
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VulDB
Linux Kernel up to 6.13.5 fs/overlayfs/util.c dput use after free (EUVD-2025-8469 / Nessus ID 234309)
vuldb·2026-07-15·CVSS 7.8
CVE-2025-21887 [HIGH] Linux Kernel up to 6.13.5 fs/overlayfs/util.c dput use after free (EUVD-2025-8469 / Nessus ID 234309)
A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.15.178/6.1.129/6.6.80/6.12.17/6.13.5. Affected is the function dput in the library fs/overlayfs/util.c. The manipulation results in use after free.
This vulnerability is cataloged as CVE-2025-21887. The attack must originate from the local network. There is no exploit available.
You should upgrade the affected component.
OSV
linux-azure-nvidia vulnerabilities
osv·2025-10-08·CVSS 5.5
[MEDIUM] linux-azure-nvidia vulnerabilities
linux-azure-nvidia vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS subsystem;
- USB DSL drivers;
- Renesas USBHS Controller drivers;
- USB Type-C Connector
OSV
linux-azure, linux-azure-6.8 vulnerabilities
osv·2025-10-02·CVSS 5.5
[MEDIUM] linux-azure, linux-azure-6.8 vulnerabilities
linux-azure, linux-azure-6.8 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS subsystem;
- USB DSL drivers;
- Renesas USBHS Controller drivers;
- USB Type-C
OSV
linux-ibm, linux-ibm-6.8 vulnerabilities
osv·2025-09-25·CVSS 5.5
[MEDIUM] linux-ibm, linux-ibm-6.8 vulnerabilities
linux-ibm, linux-ibm-6.8 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS subsystem;
- USB DSL drivers;
- Renesas USBHS Controller drivers;
- USB Type-C Con
OSV
linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-raspi vulnerabilities
osv·2025-09-02·CVSS 5.5
CVE-2025-21887 [MEDIUM] linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-raspi vulnerabilities
linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-raspi vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
OSV
linux-realtime, linux-raspi-realtime vulnerabilities
osv·2025-08-28·CVSS 5.5
CVE-2025-21887 [MEDIUM] linux-realtime, linux-raspi-realtime vulnerabilities
linux-realtime, linux-raspi-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
OSV
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
osv·2025-08-28·CVSS 5.5
CVE-2025-21887 [MEDIUM] linux, linux-aws, linux-aws-6.8, linux-gcp, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
OSV
linux-xilinx-zynqmp vulnerabilities
osv·2025-06-26·CVSS 8.8
CVE-2024-8805 [HIGH] linux-xilinx-zynqmp vulnerabilities
linux-xilinx-zynqmp vulnerabilities
Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- ACPI driv
OSV
linux-hwe-5.15 vulnerabilities
osv·2025-06-24·CVSS 8.8
CVE-2024-8805 [HIGH] linux-hwe-5.15 vulnerabilities
linux-hwe-5.15 vulnerabilities
Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- ACPI drivers;
OSV
linux-aws-5.15 vulnerabilities
osv·2025-05-29·CVSS 5.5
[MEDIUM] linux-aws-5.15 vulnerabilities
linux-aws-5.15 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY d
OSV
linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oracle vulnerabilities
osv·2025-05-28
linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oracle vulnerabilities
linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oracle vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOMMU subsystem;
- Multiple dev
OSV
linux-aws, linux-intel-iotg-5.15, linux-nvidia-tegra-igx, linux-raspi vulnerabilities
osv·2025-05-28
linux-aws, linux-intel-iotg-5.15, linux-nvidia-tegra-igx, linux-raspi vulnerabilities
linux-aws, linux-intel-iotg-5.15, linux-nvidia-tegra-igx, linux-raspi vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC dr
OSV
linux-aws-fips vulnerabilities
osv·2025-05-27·CVSS 5.5
[MEDIUM] linux-aws-fips vulnerabilities
linux-aws-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY d
OSV
linux-aws vulnerabilities
osv·2025-05-22
linux-aws vulnerabilities
linux-aws vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOMMU subsystem;
- Multiple devices driver;
- Media drivers;
- NVIDIA Tegra mem
OSV
linux-azure-fips vulnerabilities
osv·2025-05-20·CVSS 5.5
[MEDIUM] linux-azure-fips vulnerabilities
linux-azure-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY
OSV
linux, linux-azure, linux-azure-6.11, linux-gcp, linux-gcp-6.11, linux-hwe-6.11, linux-oem-6.11, linux-raspi, linux-realtime vulnerabilities
osv·2025-05-20
linux, linux-azure, linux-azure-6.11, linux-gcp, linux-gcp-6.11, linux-hwe-6.11, linux-oem-6.11, linux-raspi, linux-realtime vulnerabilities
linux, linux-azure, linux-azure-6.11, linux-gcp, linux-gcp-6.11, linux-hwe-6.11, linux-oem-6.11, linux-raspi, linux-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers
OSV
linux-gke vulnerabilities
osv·2025-05-20·CVSS 7.8
[HIGH] linux-gke vulnerabilities
linux-gke vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY driver
OSV
linux-intel-iot-realtime, linux-realtime vulnerabilities
osv·2025-05-20·CVSS 7.8
[HIGH] linux-intel-iot-realtime, linux-realtime vulnerabilities
linux-intel-iot-realtime, linux-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution En
OSV
linux-azure, linux-azure-5.15, linux-nvidia-tegra vulnerabilities
osv·2025-05-20·CVSS 7.8
[HIGH] linux-azure, linux-azure-5.15, linux-nvidia-tegra vulnerabilities
linux-azure, linux-azure-5.15, linux-nvidia-tegra vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Exe
OSV
linux-gcp-fips vulnerabilities
osv·2025-05-16·CVSS 5.5
[MEDIUM] linux-gcp-fips vulnerabilities
linux-gcp-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY d
OSV
linux-gcp vulnerabilities
osv·2025-05-16·CVSS 5.5
[MEDIUM] linux-gcp vulnerabilities
linux-gcp vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY driver
OSV
linux-fips vulnerabilities
osv·2025-05-16·CVSS 7.8
[HIGH] linux-fips vulnerabilities
linux-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY drive
OSV
linux, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities
osv·2025-05-16
linux, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities
linux, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PT
OSV
linux-gcp-5.15 vulnerabilities
osv·2025-05-16·CVSS 5.5
[MEDIUM] linux-gcp-5.15 vulnerabilities
linux-gcp-5.15 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY d
OSV
CVE-2025-21887: In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue
osv·2025-03-27·CVSS 7.8
CVE-2025-21887 [HIGH] CVE-2025-21887: In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue
In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was caused by dput(upper) being called before ovl_dentry_update_reval(), while upper->d_flags was still accessed in ovl_dentry_remote(). Move dput(upper) after its last use to prevent use-after-free. BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline] BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 ovl_dentry_remote fs
GHSA
GHSA-vjwm-w9rc-f4cc: In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issu
ghsa_unreviewed·2025-03-27
CVE-2025-21887 [HIGH] CWE-416 GHSA-vjwm-w9rc-f4cc: In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issu
In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issue was caused by dput(upper) being called before
ovl_dentry_update_reval(), while upper->d_flags was still
accessed in ovl_dentry_remote().
Move dput(upper) after its last use to prevent use-after-free.
BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
ovl_dentry_rem
Ubuntu
Kernel Live Patch Security Notice
vendor_ubuntu·2025-10-08·CVSS 8.4
CVE-2024-47685 [HIGH] Kernel Live Patch Security Notice
Title: Kernel Live Patch Security Notice
Summary: Several security issues were fixed in the kernel.
In the Linux kernel, the following vulnerability has been
resolved: fs/ntfs3: Fixed overflow check in mi_enum_attr())(CVE-2024-27407).
In the Linux kernel, the following vulnerability has been
resolved: netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put() syzbot
reported that nf_reject_ip6_tcphdr_put() was possibly sending garbage on
the four reserved tcp bits (th->res1) Use skb_put_zero() to clear the whole
TCP header, as done in nf_reject_ip_tcphdr_put() BUG: KMSAN: uninit-value
in nf_reject_ip6_tcphdr_put+0x688/0x6c0
net/ipv6/netfilter/nf_reject_ipv6.c:255
nf_reject_ip6_tcphdr_put+0x688/0x6c0
net/ipv6/netfilter/nf_reject_ipv6.c:255 nf_send_reset6+0xd84/0x15b0
net/ipv6/netfilter/nf
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities
vendor_ubuntu·2025-10-08·CVSS 5.5
CVE-2025-21891 [MEDIUM] Linux kernel (Azure, N-Series) vulnerabilities
Title: Linux kernel (Azure, N-Series) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS sub
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-10-02·CVSS 5.5
CVE-2025-21941 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS subsystem;
-
Ubuntu
Linux kernel (IBM) vulnerabilities
vendor_ubuntu·2025-09-25·CVSS 5.5
CVE-2025-21981 [MEDIUM] Linux kernel (IBM) vulnerabilities
Title: Linux kernel (IBM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- x86 architecture;
- Compute Acceleration Framework;
- Bus devices;
- AMD CDX bus driver;
- DPLL subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- Pin controllers subsystem;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SLIMbus drivers;
- QCOM SoC drivers;
- UFS subsystem;
- US
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-09-02·CVSS 5.5
CVE-2025-37752 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generi
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-08-28·CVSS 5.5
CVE-2024-57996 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generi
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2025-08-28·CVSS 5.5
CVE-2025-37752 [MEDIUM] Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Overlay file system;
- Network traffic control;
(CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g.
Ubuntu
Kernel Live Patch Security Notice
vendor_ubuntu·2025-08-18
CVE-2022-49176 Kernel Live Patch Security Notice
Title: Kernel Live Patch Security Notice
Summary: Several security issues were fixed in the kernel.
In the Linux kernel, the following vulnerability has been
resolved: bfq: fix use-after-free in bfq_dispatch_request KASAN reports a
use-after-free report when doing normal scsi-mq test .
In the Linux kernel, the following vulnerability has been
resolved: block, bfq: don't move oom_bfqq Our test report a UAF: .
In the Linux kernel, the following vulnerability has been
resolved: Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del() When
l2cap_recv_frame() is invoked to receive data, and the cid is
L2CAP_CID_A2MP, if the channel does not exist, it will create a channel.
However, after a channel is created, the hold operation of the channel is
not performed.
In the Linux kernel, the foll
Ubuntu
Linux kernel (Xilinx ZynqMP) vulnerabilities
vendor_ubuntu·2025-06-26·CVSS 8.8
CVE-2024-58086 [HIGH] Linux kernel (Xilinx ZynqMP) vulnerabilities
Title: Linux kernel (Xilinx ZynqMP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-06-24·CVSS 8.8
CVE-2024-57986 [HIGH] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerP
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-05-29
CVE-2024-57986 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-28
CVE-2024-57977 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOM
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-28
CVE-2024-57986 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus driver
Ubuntu
Linux kernel (AWS FIPS) vulnerabilities
vendor_ubuntu·2025-05-27
CVE-2024-57977 Linux kernel (AWS FIPS) vulnerabilities
Title: Linux kernel (AWS FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLI
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-05-22
CVE-2025-21716 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2024-57977 Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- S
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2025-21716 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOM
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2024-57977 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus driver
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2024-57986 Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SL
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2024-57986 Linux kernel (GKE) vulnerabilities
Title: Linux kernel (GKE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus
Ubuntu
Linux kernel (GCP FIPS) vulnerabilities
vendor_ubuntu·2025-05-16
CVE-2024-57977 Linux kernel (GCP FIPS) vulnerabilities
Title: Linux kernel (GCP FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLI
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2025-05-16
CVE-2024-57986 Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-16
CVE-2024-57977 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus driver
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2025-05-16
CVE-2024-57986 Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-05-16
CVE-2024-57986 Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus
Red Hat
kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
vendor_redhat·2025-03-27·CVSS 7.8
CVE-2025-21887 [HIGH] CWE-416 kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issue was caused by dput(upper) being called before
ovl_dentry_update_reval(), while upper->d_flags was still
accessed in ovl_dentry_remote().
Move dput(upper) after its last use to prevent use-after-free.
BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kas
Microsoft
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
vendor_msrc·2025-03-11·CVSS 7.8
CVE-2025-21887 [HIGH] ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Referenc
Debian
CVE-2025-21887: linux - In the Linux kernel, the following vulnerability has been resolved: ovl: fix UA...
vendor_debian·2025·CVSS 7.8
CVE-2025-21887 [HIGH] CVE-2025-21887: linux - In the Linux kernel, the following vulnerability has been resolved: ovl: fix UA...
In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was caused by dput(upper) being called before ovl_dentry_update_reval(), while upper->d_flags was still accessed in ovl_dentry_remote(). Move dput(upper) after its last use to prevent use-after-free. BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline] BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 ovl_dentry_remote fs
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/3594aad97e7be2557ca9fa9c931b206b604028c8https://git.kernel.org/stable/c/4b49d939b5a79117f939b77cc67efae2694d9799https://git.kernel.org/stable/c/60b4b5c1277fc491da9e1e7abab307bfa39c2db7https://git.kernel.org/stable/c/64455c8051c3aedc71abb7ec8d47c80301f99f00https://git.kernel.org/stable/c/a7c41830ffcd17b2177a95a9b99b270302090c35https://git.kernel.org/stable/c/c84e125fff2615b4d9c259e762596134eddd2f27https://git.kernel.org/stable/c/f77618291836168eca99e89cd175256f928f5e64https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
2025-03-27
Published