kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

A flaw was found in the Linux kernel's Squashfs filesystem. A local attacker can exploit this vulnerability by simultaneously mounting a Squashfs filesystem and issuing a specific input/output control ioctl command. This can lead to an incorrect block size calculation, causing a shift-out-of-boun...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

A flaw was found in the Linux kernel's Squashfs filesystem. A local attacker can exploit this vulnerability by simultaneously mounting a Squashfs filesystem and issuing a specific input/output control ioctl command. This can lead to an incorrect block size calculation, causing a shift-out-of-boun...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

A flaw was found in the Linux kernel's Squashfs filesystem. A local attacker can exploit this vulnerability by simultaneously mounting a Squashfs filesystem and issuing a specific input/output control ioctl command. This can lead to an incorrect block size calculation, causing a shift-out-of-boun...

FreeBSD -- Jail chroot escape via fd exchange with a different jail

Problem Description: If two sibling jails are restricted to separate filesystem trees, which is to say that neither of the two jail root directories is an ancestor of the other, jailed processes may nonetheless be able to access a shared directory via a nullfs mount, if the administrator has...

FreeBSD Security Advisory - FreeBSD-SA-26:04.jail

FreeBSD Security Advisory - If two sibling jails are restricted to separate filesystem trees, which is to say that neither of the two jail root directories is an ancestor of the other, jailed processes may nonetheless be able to access a shared directory via a nullfs mount, if the administrator h...

Linux Kernel 7.x Safe Verification of XFS Scrub ioctl Support

This tool provides a safe and non-exploitative way to verify whether a mount point uses the XFS file system and whether the system kernel supports the ioctl interface for XFS metadata cleanup XFSIOCSCRUBMETADATA. The tool performs verification of the file system type to confirm it is XFS, safely...

kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

A flaw was found in the Linux kernel's Squashfs filesystem. A local attacker can exploit this vulnerability by simultaneously mounting a Squashfs filesystem and issuing a specific input/output control ioctl command. This can lead to an incorrect block size calculation, causing a shift-out-of-boun...

SUSE CVE-2026-23214

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject new transactions if the fs is fully read-only BUG There is a bug report where a heavily fuzzed fs is mounted with all rescue mount options, which leads to the following warnings during unmount: BTRFS: Transaction...

SUSE CVE-2026-23224

In the Linux kernel, the following vulnerability has been resolved: erofs: fix UAF issue for file-backed mounts w/ directio option 9.269940 T3222 Call trace: 9.269948 T3222 ext4filereaditer+0xac/0x108 9.269979 T3222 vfsiocbiterread+0xac/0x198 9.269993 T3222 erofsfileiorqsubmit+0x12c/0x180 9.27000...

CVE-2025-71230

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

CVE-2025-71230 hfs: ensure sb->s_fs_info is always cleaned up

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

CVE-2025-71230 hfs: ensure sb->s_fs_info is always cleaned up

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

CVE-2026-23214 btrfs: reject new transactions if the fs is fully read-only

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject new transactions if the fs is fully read-only BUG There is a bug report where a heavily fuzzed fs is mounted with all rescue mount options, which leads to the following warnings during unmount: BTRFS: Transaction...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...

kernel: ext4: fix use-after-free in ext4_orphan_cleanup

A use-after-free vulnerability was found in the ext4 filesystem's orphan inode cleanup routine in the Linux kernel. When ext4inodeattachjinode fails with -ENOMEM during orphan cleanup at mount time, the error is not properly propagated. The inode is freed via iput, but the orphan list still...