CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

CVE-2026-53130 fs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

CVE-2026-53043 ocfs2/dlm: validate qr_numregions in dlm_match_regions()

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: validate qrnumregions in dlmmatchregions Patch series "ocfs2/dlm: fix two bugs in dlmmatchregions". In dlmmatchregions, the qrnumregions field from a DLMQUERYREGION network message is used to drive loops over the...

CVE-2026-53040 ocfs2: validate bg_bits during freefrag scan

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate bgbits during freefrag scan BUG A crafted filesystem can trigger an out-of-bounds bitmap walk when OCFS2IOCINFO is issued with OCFS2INFOFLNONCOHERENT. BUG: KASAN: use-after-free in instrumentatomicread...

CVE-2026-53038

CVE-2026-53038 affects the Linux kernel IMA subsystem. When handling unsupported TPM hash algorithms, ima_fs can access hash_algo_name[] with an invalid crypto_id (set to HASH_ALGO__LAST), causing a read-out-of-bounds in create_securityfs_measurement_lists. The issue is associated with TPM_ALG_SH...

CVE-2026-53018 f2fs: avoid reading already updated pages during GC

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid reading already updated pages during GC We found the following issue during fuzz testing: page: refcount:3 mapcount:0 mapping:00000000b6e89c65 index:0x18b2dc pfn:0x161ba9 memcg:f8ffff800e269c00 aops:f2fsmetaaops ino:2...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: gfs2: Prevent recursive memory reclamation The new inode function returns a new inode with inode-imapping-gfpmask set to GFPHIGHUSERMOVABLE. This value includes the GFPFS flag, allowing allocations in that address space to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: erofs: Proper handling of the end of the filesystem is required for file-backed mounts. I/O requests that extend beyond the end of the filesystem should be set to zero, similar to the behavior of loopback devices. This is what we...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has a regression starting from 6.18-rc1. We have a issue with cephmdsauthmatch if fsname is NULL: c const char fsname =...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: In the vfs module, a race condition occurred regarding the mFlags field. ksmbd maintains states such as “delete-on-close” and “pending-delete” in the mFlags field of the ksmbdinode structure. In the vfscache.c code, thi...

Astra Linux - Vulnerability in linux-6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: ensure node page reads are complete before f2fsputsuper finishes Xfstests generic/335 and generic/336 sometimes crash with the following message: F2FS-fs dm-0: detected a filesystem reference count leak during umount, type:...

Astra Linux – Vulnerability in Chromium

The use of after-free in FileSystem in Google Chrome before version 147.0.7727.101 allowed a remote attacker to potentially exploit object corruption through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nfsd: Check that the server is running in unlockfilesystem. If we try to unlock the filesystem via an administrative interface, and nfsd is not running, it will cause the server to crash. This occurs currently because the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fixed to avoid mapping the wrong physical block for the swapfile. Xiaolong Guo reported a bug related to f2fs in bugzilla 1. 1 https://bugzilla.kernel.org/showbug.cgi?id=220951 Quoted: “When using the stress-ng swap stress...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix for the double decrement of the dirty clusters count during shutdown. The fstests test for generic/388 occasionally produces a warning in ext4putsuper, associated with the count of dirty clusters: WARNING: CPU: 7; PID:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: New folios are initialized before being used. KMSAN reports an uninitialized value in longestmatchstd, which is called from ntfscompresswrite. When new folios are allocated without being marked as “uptodate”, and...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: erofs: limited the level of fs stacking for file-backed mounts. Otherwise, it could cause potential kernel stack overflows e.g., when mounting EROFS itself...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: a fix was made to avoid potential deadlocks. As reported by Jiaming Zhang and syzbot, there is a potential deadlock in f2fs as follows: A chain exists of: &sbi-cprwsem → fsreclaim → sbinternal2 Possible unsafe locking...

SUSE-SU-2026:22421-1 Security update for the Linux Kernel (Live Patch 17 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-40.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache...

Security update for the Linux Kernel (Live Patch 24 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.103 fixes various security issues The following security issues were fixed: CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache bsc1261640. CVE-2026-31504: net: fix fanout UAF in packetrelease via NETDEVUP race...