Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed error handling in ext4fcrecordmodified inode. The current code does not properly handle the krealloc error case, which could lead to silent memory corruption or a kernel bug. This patch addresses this issue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: fixed a memory leak in parseapplysbmountoptions If processing the disk-mounted options fails after any memory has been allocated in the ext4FS context, such as for sqfnames, then this memory is leaked. This issue was...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: The issue where inline data checks might be performed during dio write operations has been fixed. According to syzbot, the following warning from ext4iomapbegin is triggered as of the referenced commit: c if...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed the bug in estreesearch caused by an invalid boot loader inode. We have the following issues: kernel BUG at fs/ext4/extentsstatus.c:203! invalid opcode: 0000 1 PREEMPT SMP CPU: 1 PID: 945 Comm: cat Not tainted...

UBUNTU-CVE-2026-45920

In the Linux kernel, the following vulnerability has been resolved: ext4: fix dirtyclusters double decrement on fs shutdown fstests test generic/388 occasionally reproduces a warning in ext4putsuper associated with the dirty clusters count: WARNING: CPU: 7 PID: 76064 at fs/ext4/super.c:1324...

CVE-2026-45912

In the Linux kernel, the following vulnerability has been resolved: ext4: don't cache extent during splitting extent Caching extents during the splitting process is risky, as it may result in stale extents remaining in the status tree. Moreover, in most cases, the corresponding extent block entri...

PT-2026-43809

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the ext4 file system between page migration and bitmap modification during mixed huge-page workloads. The issue occurs because the fast path of the load buddy...

EUVD-2026-24782

In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with sfirstdatablock != 0 bigalloc with sfirstdatablock != 0 is not supported, reject mounting it...

CVE-2026-31447 ext4: reject mount if bigalloc with s_first_data_block != 0

In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with sfirstdatablock != 0 bigalloc with sfirstdatablock != 0 is not supported, reject mounting it...

CVE-2025-69430

An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 version equal to or prior to V1.9.12, DM3 version equal to or prior to V1.9.12, and DM200 version equal to or prior to V1.2.23 that could be exploited by attackers to leak or tamper with the intern...

CVE-2025-69430

CVE-2025-69430 describes an Incorrect Symlink Follow vulnerability affecting multiple Yottamaster NAS devices (DM2 up to V1.9.12, DM3 up to V1.9.12, DM200 up to V1.2.23). An attacker could format a USB drive as ext4, create a symbolic link to the USB root, insert the drive, and access the symlink...

CVE-2025-71123

CVE-2025-71123 affects the Linux kernel Ext4 mount option parsing. The vulnerability stems from improper string copying in parse_apply_sb_mount_options(), where strscpy_pad() could copy a non-NUL-terminated string into a fixed-size destination, triggering fortify warnings (strnlen: detected buffe...

CVE-2023-54311 ext4: fix deadlock when converting an inline directory in nojournal mode

In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock when converting an inline directory in nojournal mode In no journal mode, ext4finishconvertinlinedir can self-deadlock by calling ext4handledirtydirblock when it already has taken the directory lock. There is a...

CVE-2022-50673

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in ext4orphancleanup I caught a issue as follows: ================================================================== BUG: KASAN: use-after-free in listaddvalid+0x28/0x1a0 Read of size 8 at addr...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989380)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989380 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: add error checking to ext4extreplaysetiblocks If the call to ext4mapblocks fails due to an...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Do not report a BUG when INLINEDATAFL lacks the system.data xattr attribute. A syzbot fuzed image triggered a BUG in ext4updateinlinedata, when an inode had the INLINEDATAFL flag set but lacked the system.data extended...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414542)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414542 advisory. A race condition was discovered in ext4writeinlinedataend in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. Tenable has extracted the...

CVE-2022-50344

In the Linux kernel, the following vulnerability has been resolved: ext4: fix null-ptr-deref in ext4writeinfo I caught a null-ptr-deref bug as follows: ================================================================== KASAN: null-ptr-deref in range 0x0000000000000068-0x000000000000006f CPU: 1 PI...

CVE-2022-50277 ext4: don't allow journal inode to have encrypt flag

In the Linux kernel, the following vulnerability has been resolved: ext4: don't allow journal inode to have encrypt flag Mounting a filesystem whose journal inode has the encrypt flag causes a NULL dereference in fscryptlimitioblocks when the 'inlinecrypt' mount option is used. The problem is tha...

kernel: ext4: fix off-by-one error in do_split

In the Linux kernel, the following vulnerability has been resolved: ext4: fix off-by-one error in dosplit Syzkaller detected a use-after-free issue in ext4insertdentry that was caused by out-of-bounds access due to incorrect splitting in dosplit. BUG: KASAN: use-after-free in...