CVE-2025-21642
published 2025-01-19CVE-2025-21642: In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via 'current'…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
mptcp: sysctl: sched: avoid using current->nsproxy
Using the 'net' structure via 'current' is not recommended for different
reasons.
First, if the goal is to use it to read or write per-netns data, this is
inconsistent with how the "generic" sysctl entries are doing: directly
by only using pointers set to the table entry, e.g. table->data. Linked
to that, the per-netns data should always be obtained from the table
linked to the netns it had been created for, which may not coincide with
the reader's or writer's netns.
Another reason is that access to current->nsproxy->netns can oops if
attempted when current->nsproxy had been dropped when the current task
is exiting. This is what syzbot found, when using acct(2):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
CPU: 1 UID: 0 PID: 5924 Comm: syz-executor Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:proc_scheduler+0xc6/0x3c0 net/mptcp/ctrl.c:125
Code: 03 42 80 3c 38 00 0f 85 fe 02 00 00 4d 8b a4 24 08 09 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 28 48 89 fa 48 c1 ea 03 3c 02 00 0f 85 cc 02 00 00 4d 8b 7c 24 28 48 8d 84 24 c8 00 00
RSP: 0018:ffffc900034774e8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 1ffff9200068ee9e RCX: ffffc90003477620
RDX: 0000000000000005 RSI: ffffffff8b08f91e RDI: 0000000000000028
RBP: 0000000000000001 R08: ffffc90003477710 R09: 0000000000000040
R10: 0000000000000040 R11: 00000000726f7475 R12: 0000000000000000
R13: ffffc90003477620 R14: ffffc90003477710 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fee3cd452d8 CR3: 000000007d116000 CR4: 00000000003526f0
DR0: 000
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.10-1 (forky) | linux 6.12.10-1 (forky) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 6.6.31 < 6.6.72 | 6.6.72 |
| linux | linux | >= 6.8.10 < 6.9 | 6.9 |
| linux | linux | >= 6963c508fd7ab66ae0b7ae3db9a62ca6267f1ae8 < 6035702381c35a8f16757332381e58b348a9eaf9 | 6035702381c35a8f16757332381e58b348a9eaf9 |
| linux | linux | >= 6963c508fd7ab66ae0b7ae3db9a62ca6267f1ae8 < d38e26e36206ae3d544d496513212ae931d1da0a | d38e26e36206ae3d544d496513212ae931d1da0a |
| linux | linux | >= daad878a509d69da1761106cb48c091dfe9d522d < c0e394fd6b887e84da17e38aaa6c1c104f9c86c2 | c0e394fd6b887e84da17e38aaa6c1c104f9c86c2 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.10-1 | 6.12.10-1 |
| linux | linux_kernel | >= 0 < 6.12.10-1 | 6.12.10-1 |
| linux | linux_kernel | >= 0 < 6.8.0-60.63 | 6.8.0-60.63 |
| linux | linux_kernel | >= 6.6.31 < 6.6.72 | 6.6.72 |
| linux | linux_kernel | >= 6.8.10 < 6.12.10 | 6.12.10 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
linux-oracle-6.8 vulnerabilities
osv·2025-05-29·CVSS 5.5
[MEDIUM] linux-oracle-6.8 vulnerabilities
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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform drivers;
- Power supply dri
OSV
linux-hwe-6.8 vulnerabilities
osv·2025-05-28·CVSS 5.5
[MEDIUM] linux-hwe-6.8 vulnerabilities
linux-hwe-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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform drivers;
- Power supply driver
OSV
linux-raspi vulnerabilities
osv·2025-05-26
linux-raspi vulnerabilities
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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Ublk userspace block driver;
- Virtio block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto d
OSV
linux-azure-nvidia vulnerabilities
osv·2025-05-20·CVSS 7.8
[HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- Microsoft Azure Network Adapter (MANA) driver;
- STMicroelectronics network drivers;
- PCI subsystem;
OSV
linux-raspi-realtime vulnerabilities
osv·2025-05-20
linux-raspi-realtime vulnerabilities
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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Ublk userspace block driver;
- Virtio block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware
OSV
linux-azure, linux-azure-6.8, linux-oem-6.8 vulnerabilities
osv·2025-05-20·CVSS 6.2
[MEDIUM] linux-azure, linux-azure-6.8, linux-oem-6.8 vulnerabilities
linux-azure, linux-azure-6.8, linux-oem-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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform
OSV
linux-gcp, linux-gcp-6.8, linux-gkeop vulnerabilities
osv·2025-05-20·CVSS 7.8
[HIGH] linux-gcp, linux-gcp-6.8, linux-gkeop vulnerabilities
linux-gcp, linux-gcp-6.8, linux-gkeop 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform driver
OSV
linux-realtime vulnerabilities
osv·2025-05-16·CVSS 7.1
[HIGH] linux-realtime vulnerabilities
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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform drivers;
- Power supply drive
OSV
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
osv·2025-05-16·CVSS 5.5
[MEDIUM] linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x
OSV
linux, linux-aws, linux-aws-6.8, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle vulnerabilities
osv·2025-05-16·CVSS 7.1
[HIGH] linux, linux-aws, linux-aws-6.8, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle vulnerabilities
linux, linux-aws, linux-aws-6.8, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PC
OSV
linux-gke vulnerabilities
osv·2025-05-16·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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
- Pin controllers subsystem;
- x86 platform drivers;
- Power supply drivers;
-
OSV
linux-raspi vulnerabilities
osv·2025-04-01
linux-raspi vulnerabilities
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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- LED
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-6.11, linux-oracle, linux-realtime vulnerabilities
osv·2025-03-27
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-6.11, linux-oracle, linux-realtime vulnerabilities
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-6.11, linux-oracle, 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- IIO AD
OSV
linux-oem-6.11 vulnerabilities
osv·2025-03-27
linux-oem-6.11 vulnerabilities
linux-oem-6.11 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- L
OSV
linux-lowlatency vulnerabilities
osv·2025-03-27
linux-lowlatency vulnerabilities
linux-lowlatency 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
-
OSV
linux-lowlatency-hwe-6.11 vulnerabilities
osv·2025-03-27
CVE-2025-0927 linux-lowlatency-hwe-6.11 vulnerabilities
linux-lowlatency-hwe-6.11 vulnerabilities
Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)
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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block dri
GHSA
GHSA-2g8f-3mwg-x245: In the Linux kernel, the following vulnerability has been resolved:
mptcp: sysctl: sched: avoid using current->nsproxy
Using the 'net' structure via
ghsa_unreviewed·2025-01-19
CVE-2025-21642 [MEDIUM] CWE-476 GHSA-2g8f-3mwg-x245: In the Linux kernel, the following vulnerability has been resolved:
mptcp: sysctl: sched: avoid using current->nsproxy
Using the 'net' structure via
In the Linux kernel, the following vulnerability has been resolved:
mptcp: sysctl: sched: avoid using current->nsproxy
Using the 'net' structure via 'current' is not recommended for different
reasons.
First, if the goal is to use it to read or write per-netns data, this is
inconsistent with how the "generic" sysctl entries are doing: directly
by only using pointers set to the table entry, e.g. table->data. Linked
to that, the per-netns data should always be obtained from the table
linked to the netns it had been created for, which may not coincide with
the reader's or writer's netns.
Another reason is that access to current->nsproxy->netns can oops if
attempted when current->nsproxy had been dropped when the current task
is exiting. This is what syzbot found, when using acct(2):
Oops:
OSV
CVE-2025-21642: In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via '
osv·2025-01-19·CVSS 5.5
CVE-2025-21642 [MEDIUM] CVE-2025-21642: In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via '
In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via 'current' is not recommended for different reasons. First, if the goal is to use it to read or write per-netns data, this is inconsistent with how the "generic" sysctl entries are doing: directly by only using pointers set to the table entry, e.g. table->data. Linked to that, the per-netns data should always be obtained from the table linked to the netns it had been created for, which may not coincide with the reader's or writer's netns. Another reason is that access to current->nsproxy->netns can oops if attempted when current->nsproxy had been dropped when the current task is exiting. This is what syzbot found, when using acct(2): Oops: gene
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2025-05-29·CVSS 5.5
CVE-2025-21639 [MEDIUM] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subs
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-05-28·CVSS 5.5
CVE-2025-21639 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsyst
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2025-05-26
CVE-2024-56551 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Ublk userspace block driver;
- Virtio block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock framework and drivers;
- Data
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-20·CVSS 5.5
CVE-2025-21639 [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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
-
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities
vendor_ubuntu·2025-05-20·CVSS 7.8
CVE-2024-57793 [HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- Microsoft Azure
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2024-57793 Linux kernel (Raspberry Pi Real-time) vulnerabilities
Title: Linux kernel (Raspberry Pi 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Ublk userspace block driver;
- Virtio block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock framework and driver
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-20·CVSS 7.8
CVE-2024-57793 [HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
-
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.8
CVE-2024-57793 [HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsyst
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 5.5
CVE-2024-57793 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subs
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.1
CVE-2025-21639 [HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI s
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.1
CVE-2024-57793 [HIGH] 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
-
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2025-04-01
CVE-2024-56761 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsy
Ubuntu
Linux kernel (Low Latency) vulnerabilities
vendor_ubuntu·2025-03-27
CVE-2024-56582 Linux kernel (Low Latency) vulnerabilities
Title: Linux kernel (Low Latency) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)
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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI
Ubuntu
Linux kernel (Low Latency) vulnerabilities
vendor_ubuntu·2025-03-27
CVE-2024-56582 Linux kernel (Low Latency) vulnerabilities
Title: Linux kernel (Low Latency) 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsys
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-03-27
CVE-2024-56582 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- IIO ADC
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2025-03-27
CVE-2024-56582 Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) 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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- I3C subsystem;
- I
Red Hat
kernel: mptcp: sysctl: sched: avoid using current->nsproxy
vendor_redhat·2025-01-19·CVSS 5.5
CVE-2025-21642 [MEDIUM] CWE-476 kernel: mptcp: sysctl: sched: avoid using current->nsproxy
kernel: mptcp: sysctl: sched: avoid using current->nsproxy
In the Linux kernel, the following vulnerability has been resolved:
mptcp: sysctl: sched: avoid using current->nsproxy
Using the 'net' structure via 'current' is not recommended for different
reasons.
First, if the goal is to use it to read or write per-netns data, this is
inconsistent with how the "generic" sysctl entries are doing: directly
by only using pointers set to the table entry, e.g. table->data. Linked
to that, the per-netns data should always be obtained from the table
linked to the netns it had been created for, which may not coincide with
the reader's or writer's netns.
Another reason is that access to current->nsproxy->netns can oops if
attempted when current->nsproxy had been dropped when the current task
is exitin
Debian
CVE-2025-21642: linux - In the Linux kernel, the following vulnerability has been resolved: mptcp: sysc...
vendor_debian·2025·CVSS 5.5
CVE-2025-21642 [MEDIUM] CVE-2025-21642: linux - In the Linux kernel, the following vulnerability has been resolved: mptcp: sysc...
In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via 'current' is not recommended for different reasons. First, if the goal is to use it to read or write per-netns data, this is inconsistent with how the "generic" sysctl entries are doing: directly by only using pointers set to the table entry, e.g. table->data. Linked to that, the per-netns data should always be obtained from the table linked to the netns it had been created for, which may not coincide with the reader's or writer's netns. Another reason is that access to current->nsproxy->netns can oops if attempted when current->nsproxy had been dropped when the current task is exiting. This is what syzbot found, when using acct(2): Oops: gene
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-01-19
Published