CVE-2025-21654
published 2025-01-19CVE-2025-21654: In the Linux kernel, the following vulnerability has been resolved: ovl: support encoding fid from inode with no alias Dmitry Safonov reported that a WARN_ON()…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
9.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
ovl: support encoding fid from inode with no alias
Dmitry Safonov reported that a WARN_ON() assertion can be trigered by
userspace when calling inotify_show_fdinfo() for an overlayfs watched
inode, whose dentry aliases were discarded with drop_caches.
The WARN_ON() assertion in inotify_show_fdinfo() was removed, because
it is possible for encoding file handle to fail for other reason, but
the impact of failing to encode an overlayfs file handle goes beyond
this assertion.
As shown in the LTP test case mentioned in the link below, failure to
encode an overlayfs file handle from a non-aliased inode also leads to
failure to report an fid with FAN_DELETE_SELF fanotify events.
As Dmitry notes in his analyzis of the problem, ovl_encode_fh() fails
if it cannot find an alias for the inode, but this failure can be fixed.
ovl_encode_fh() seldom uses the alias and in the case of non-decodable
file handles, as is often the case with fanotify fid info,
ovl_encode_fh() never needs to use the alias to encode a file handle.
Defer finding an alias until it is actually needed so ovl_encode_fh()
will not fail in the common case of FAN_DELETE_SELF fanotify events.
Affected
11 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 | >= 16aac5ad1fa94894b798dd522c5c3a6a0628d7f0 < f0c0ac84de17c37e6e84da65fb920f91dada55ad | f0c0ac84de17c37e6e84da65fb920f91dada55ad |
| linux | linux | >= 16aac5ad1fa94894b798dd522c5c3a6a0628d7f0 < 3c7c90274ae339e1ad443c9be1c67a20b80b9c76 | 3c7c90274ae339e1ad443c9be1c67a20b80b9c76 |
| linux | linux | >= 16aac5ad1fa94894b798dd522c5c3a6a0628d7f0 < c45beebfde34aa71afbc48b2c54cdda623515037 | c45beebfde34aa71afbc48b2c54cdda623515037 |
| 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 < 6.6.74 | 6.6.74 |
| linux | linux_kernel | >= 6.7 < 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
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- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
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- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
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- MIPS architecture;
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- RISC-V architecture;
- S390 architecture;
- x86 architecture;
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- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
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- Bluetooth drivers;
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- DMA engine subsystem;
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- 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;
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- ACPI drivers;
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- Bluetooth drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
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CVE-2025-21654: In the Linux kernel, the following vulnerability has been resolved: ovl: support encoding fid from inode with no alias Dmitry Safonov reported that a
osv·2025-01-19·CVSS 5.5
CVE-2025-21654 [MEDIUM] CVE-2025-21654: In the Linux kernel, the following vulnerability has been resolved: ovl: support encoding fid from inode with no alias Dmitry Safonov reported that a
In the Linux kernel, the following vulnerability has been resolved: ovl: support encoding fid from inode with no alias Dmitry Safonov reported that a WARN_ON() assertion can be trigered by userspace when calling inotify_show_fdinfo() for an overlayfs watched inode, whose dentry aliases were discarded with drop_caches. The WARN_ON() assertion in inotify_show_fdinfo() was removed, because it is possible for encoding file handle to fail for other reason, but the impact of failing to encode an overlayfs file handle goes beyond this assertion. As shown in the LTP test case mentioned in the link below, failure to encode an overlayfs file handle from a non-aliased inode also leads to failure to report an fid with FAN_DELETE_SELF fanotify events. As Dmitry notes in his analyzis of the problem, ovl
GHSA
GHSA-88v5-46c4-6cxw: In the Linux kernel, the following vulnerability has been resolved:
ovl: support encoding fid from inode with no alias
Dmitry Safonov reported that
ghsa_unreviewed·2025-01-19
CVE-2025-21654 [MEDIUM] CWE-617 GHSA-88v5-46c4-6cxw: In the Linux kernel, the following vulnerability has been resolved:
ovl: support encoding fid from inode with no alias
Dmitry Safonov reported that
In the Linux kernel, the following vulnerability has been resolved:
ovl: support encoding fid from inode with no alias
Dmitry Safonov reported that a WARN_ON() assertion can be trigered by
userspace when calling inotify_show_fdinfo() for an overlayfs watched
inode, whose dentry aliases were discarded with drop_caches.
The WARN_ON() assertion in inotify_show_fdinfo() was removed, because
it is possible for encoding file handle to fail for other reason, but
the impact of failing to encode an overlayfs file handle goes beyond
this assertion.
As shown in the LTP test case mentioned in the link below, failure to
encode an overlayfs file handle from a non-aliased inode also leads to
failure to report an fid with FAN_DELETE_SELF fanotify events.
As Dmitry notes in his analyzis of the problem
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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
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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
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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
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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;
-
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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
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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
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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: ovl: support encoding fid from inode with no alias
vendor_redhat·2025-01-19·CVSS 5.5
CVE-2025-21654 [MEDIUM] CWE-20 kernel: ovl: support encoding fid from inode with no alias
kernel: ovl: support encoding fid from inode with no alias
In the Linux kernel, the following vulnerability has been resolved:
ovl: support encoding fid from inode with no alias
Dmitry Safonov reported that a WARN_ON() assertion can be trigered by
userspace when calling inotify_show_fdinfo() for an overlayfs watched
inode, whose dentry aliases were discarded with drop_caches.
The WARN_ON() assertion in inotify_show_fdinfo() was removed, because
it is possible for encoding file handle to fail for other reason, but
the impact of failing to encode an overlayfs file handle goes beyond
this assertion.
As shown in the LTP test case mentioned in the link below, failure to
encode an overlayfs file handle from a non-aliased inode also leads to
failure to report an fid with FAN_DELETE_SELF fanotify
Debian
CVE-2025-21654: linux - In the Linux kernel, the following vulnerability has been resolved: ovl: suppor...
vendor_debian·2025·CVSS 5.5
CVE-2025-21654 [MEDIUM] CVE-2025-21654: linux - In the Linux kernel, the following vulnerability has been resolved: ovl: suppor...
In the Linux kernel, the following vulnerability has been resolved: ovl: support encoding fid from inode with no alias Dmitry Safonov reported that a WARN_ON() assertion can be trigered by userspace when calling inotify_show_fdinfo() for an overlayfs watched inode, whose dentry aliases were discarded with drop_caches. The WARN_ON() assertion in inotify_show_fdinfo() was removed, because it is possible for encoding file handle to fail for other reason, but the impact of failing to encode an overlayfs file handle goes beyond this assertion. As shown in the LTP test case mentioned in the link below, failure to encode an overlayfs file handle from a non-aliased inode also leads to failure to report an fid with FAN_DELETE_SELF fanotify events. As Dmitry notes in his analyzis of the problem, ovl
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-01-19
Published