ALPINE-CVE-2026-53612

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility's hookowner.c post-mount hook performs path-based chmod and lchown operations on a previously validated mount target. A local low-privileged user authorized by a...

CVE-2026-53613

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount2 path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. ...

CVE-2026-53613

A Time-of-Check Time-of-Use (TOCTOU) vulnerability in util-linux allows a local low-privileged user to achieve local privilege escalation to root. The issue exists because the mount(8) utility validates a target path from an /etc/fstab entry (authorized via user or users options) before the mount...

EUVD-2026-101124

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount2 path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. ...

CVE-2026-53613

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy "mount2" path is used without "/proc", restricted non-root "mount" requests validate an "/etc/fstab" target before the mount operation re-resolves that...

CVE-2026-53612

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID "mount" utility's "hookowner.c" post-mount hook performs path-based "chmod" and "lchown" operations on a previously validated mount target. A local low-privileged user...

CVE-2026-53612 util-linux mount hook_owner TOCTOU allows local privilege escalation

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility's hookowner.c post-mount hook performs path-based chmod and lchown operations on a previously validated mount target. A local low-privileged user authorized by a...

CVE-2026-53612 util-linux mount hook_owner TOCTOU allows local privilege escalation

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility's hookowner.c post-mount hook performs path-based chmod and lchown operations on a previously validated mount target. A local low-privileged user authorized by a...

CVE-2026-53612: Time-of-check Time-of-use (TOCTOU) Race Condition

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility's hookowner.c post-mount hook performs path-based chmod and lchown operations on a previously validated mount target. A local low-privileged user authorized by a...

Debian: CVE-2026-53613: util-linux -- security update

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount2 path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. ...

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A proof of concept exploit for a time-of-check to time-of-use local privilege escalation vulnerability in libcap version 2.77. The vulnerability exists in capsetfile, which checks a supplied pathname with lstat before independently resolving the same pathname when calling setxattr. Because setxat...

CVE-2021-47113

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

CVE-2021-47113

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

CVE-2021-47113

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

CVE-2021-47113 btrfs: abort in rename_exchange if we fail to insert the second ref

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

CVE-2021-47113 btrfs: abort in rename_exchange if we fail to insert the second ref

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

CVE-2021-47113: Use After Free

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in renameexchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a renameexchange. This happens because we insert the inode re...

GSD-2021-1000820 btrfs: abort in rename_exchange if we fail to insert the second ref

btrfs: abort in renameexchange if we fail to insert the second ref This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.10 by commit...

UVI-2021-1000784 btrfs: abort in rename_exchange if we fail to insert the second ref

btrfs: abort in renameexchange if we fail to insert the second ref This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.43 by commit...

GSD-2021-1000784 btrfs: abort in rename_exchange if we fail to insert the second ref

btrfs: abort in renameexchange if we fail to insert the second ref This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.43 by commit...