AZL-74306 CVE-2025-68796 affecting package kernel for versions less than 6.6.121.1-1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating zero-sized extent in extent cache As syzbot reported: F2FS-fs loop0: updateextenttreerange: extent len is zero, type: 0, extent 0, 0, 0, age 0, 0 ------------ cut here ------------ kernel BUG at...

UBUNTU-CVE-2025-71065

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadlock As Jiaming Zhang and syzbot reported, there is potential deadlock in f2fs as below: Chain exists of: &sbi-cprwsem -- fsreclaim -- sbinternal2 Possible unsafe locking scenario: CPU0 CPU1 ----...

CVE-2025-71065

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadlock As Jiaming Zhang and syzbot reported, there is potential deadlock in f2fs as below: Chain exists of: &sbi-cprwsem -- fsreclaim -- sbinternal2 Possible unsafe locking scenario: CPU0 CPU1 ----...

CVE-2025-68769

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix return value of f2fsrecoverfsyncdata With below scripts, it will trigger panic in f2fs: mkfs.f2fs -f /dev/vdd mount /dev/vdd /mnt/f2fs touch /mnt/f2fs/foo sync echo 111 /mnt/f2fs/foo f2fsio fsync /mnt/f2fs/foo f2fsio...

CVE-2025-68769

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix return value of f2fsrecoverfsyncdata With below scripts, it will trigger panic in f2fs: mkfs.f2fs -f /dev/vdd mount /dev/vdd /mnt/f2fs touch /mnt/f2fs/foo sync echo 111 /mnt/f2fs/foo f2fsio fsync /mnt/f2fs/foo f2fsio...

CVE-2025-71069

CVE-2025-71069 concerns a race/consistency flaw in F2FS when performing RENAME_WHITEOUT on directories with corrupted depth values. The kernel can partially modify the on-disk directory entry before f2fs_add_link fails, leaving a stale dentry cache (new_dentry points to an inode whose i_nlink was...

CVE-2025-71067 ntfs: set dummy blocksize to read boot_block when mounting

In the Linux kernel, the following vulnerability has been resolved: ntfs: set dummy blocksize to read bootblock when mounting When mounting, sb-sblocksize is used to read the bootblock without being defined or validated. Set a dummy blocksize before attempting to read the bootblock. The issue can...

CVE-2025-71065 f2fs: fix to avoid potential deadlock

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadlock As Jiaming Zhang and syzbot reported, there is potential deadlock in f2fs as below: Chain exists of: &sbi-cprwsem -- fsreclaim -- sbinternal2 Possible unsafe locking scenario: CPU0 CPU1 ----...

CVE-2025-71065 f2fs: fix to avoid potential deadlock

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadlock As Jiaming Zhang and syzbot reported, there is potential deadlock in f2fs as below: Chain exists of: &sbi-cprwsem -- fsreclaim -- sbinternal2 Possible unsafe locking scenario: CPU0 CPU1 ----...

CVE-2025-68805

In the Linux kernel, the following vulnerability has been resolved: fuse: fix io-uring list corruption for terminated non-committed requests When a request is terminated before it has been committed, the request is not removed from the queue's list. This leaves a dangling list entry that leads to...

CVE-2025-68796

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating zero-sized extent in extent cache As syzbot reported: F2FS-fs loop0: updateextenttreerange: extent len is zero, type: 0, extent 0, 0, 0, age 0, 0 ------------ cut here ------------ kernel BUG at...

CVE-2025-68784 xfs: fix a UAF problem in xattr repair

In the Linux kernel, the following vulnerability has been resolved: xfs: fix a UAF problem in xattr repair The xchksetupxattrbuf function can allocate a new value buffer, which means that any reference to ab-value before the call could become a dangling pointer. Fix this by moving an assignment t...

CVE-2025-68772

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-68771

Summary of CVE-2025-68771 (Linux kernel, ocfs2): A kernel BUG in ocfs2_find_victim_chain() was triggered when cl_next_free_rec in the allocation chain list was 0, which caused a BUG_ON(!cl->cl_next_free_rec) panic. The fix adds a guard in ocfs2_claim_suballoc_bits() to handle two conditions be...

CVE-2025-68771 ocfs2: fix kernel BUG in ocfs2_find_victim_chain

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix kernel BUG in ocfs2findvictimchain syzbot reported a kernel BUG in ocfs2findvictimchain because the clnextfreerec field of the allocation chain list next free slot in the chain list is 0, triggring the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Mitigated the risk of underflow of the EA inode refcount during xattr updates. Syzkaller identified a path in ext4xattrinodeupdateref where the refcount of EA inodes is checked, and if it is already ref underflow:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: xfs: fixed an out-of-bounds memory read error in symlink repair xfs/286 produced this report on my test fleet: ================================================================== BUG: KFENCE: out-of-bounds read in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the reference count leak in nfsdsetfhdentry. nfsd exports a “pseudo root filesystem” which is used by NFSv4 to find the various exported filesystems using LOOKUP requests from a known root filehandle. NFSv3 uses th...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/9p: Fixed buffer overflow in the USB transport layer. There is a buffer overflow vulnerability in the USB 9pfs transport layer. In this case, inconsistencies in size validation between packet header parsing and actual data...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Ensure that no dirty metadata is written back for a file system with errors. BUG During the development of a minor feature make sure that all btrfsbio::endio calls are performed in a task context, I noticed a crash in...