Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: compress: fixed to avoid a use-after-free condition on dic. Call trace: memcpy+0x128/0x250 f2fsreadmultipages+0x940/0xf7c f2fsmpagereadpages+0x5a8/0x624 f2fsreadahead+0x5c/0x110 pagecacheraunbounded+0x1b8/0x590...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed to avoid potential deadlocks. The function f2fstrylockop was used in f2fswritecompressedpages to prevent potential deadlocks, just as we did in f2fswritesingledatapage...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: A fix was made to perform a sanity check on the destination blkaddr during recovery. As Wenqing Liu reported in Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=216456 loop5: A change in capacity was detected, from 0...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: F2FS: fixed potential corruption when moving a directory. F2FS also has the same issue in ext4rename, which causes a crash, as revealed by xfstests/generic/707. See also commit 0813299c586b “ext4: Fix possible corruption when...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: The issue was fixed by dropping all dirty pages during umount if cperror is set. The xfstest generic/361 report indicates a bug as follows: f2fsbugonsbi, sbi-fsyncnodenum; Kernel bug located at fs/f2fs/super.c:1627! RIP:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed the issue where dcc-f2fsissuediscard was not invalidated during the error path. Syzbot reports a NULL pointer dereference issue as follows: refcountadd include/linux/refcount.h:193 inline refcountinc...

ROS-20260803-73-0024

The vulnerability of the initf2fsfs function in the fs/f2fs/super.c module of the F2FS file system support module in Linux kernel relates to pointer manipulation. Exploiting this vulnerability could allow an attacker to trigger a service failure...

The vulnerability of the f2fsMoveInline_dirents() function in the fs/f2fs/inline.c module of the F2FS file system in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the f2fsMoveInlinedirents function in the fs/f2fs/inline.c module of the F2FS file system in the Linux operating system involves the disclosure of confidential information. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-63820

A flaw was found in the Linux kernel's f2fs Flash-Friendly File System component. This vulnerability occurs when the f2fsreaddatalargefolio function fails to submit a read block I/O bio request if an error is encountered on a subsequent memory page folio. This can cause earlier folios to remain...

CVE-2026-63818

A flaw was found in the Linux kernel's F2FS Flash-Friendly File System component. This vulnerability arises from improper validation of the orphan inode entry count during the recovery process. A local attacker could craft a malicious F2FS image, which, when mounted on an unpatched system, could...

CVE-2026-63817

A flaw was found in the Linux kernel's F2FS file system. When the compresscache mount option is disabled, a corrupted directory entry could point to an invalid inode number. The system incorrectly processes this as a valid internal inode, bypassing critical validation checks. This vulnerability...

CVE-2026-63812

A flaw was found in the Linux kernel's f2fs Flash-Friendly File System. Incorrect handling of extent information during inode destruction can lead to a stale extent cache. This can result in data integrity issues or filesystem corruption, potentially requiring administrative intervention to repai...

CVE-2026-63811

A flaw was found in the Linux kernel's f2fs filesystem. During an atomic write operation, the system may attempt to decrypt data using an incorrect encryption context, specifically when the original file is unencrypted but its Copy-On-Write COW inode is encrypted. This mismatch can lead to a...

CVE-2026-53368

A flaw was found in the Linux kernel's F2FS Flash-Friendly File System component. A race condition exists where the f2fsneeddentrymark function incorrectly reads natentry flags without proper synchronization during checkpoint operations. This can lead to an inconsistent inode block marking state,...

SUSE CVE-2026-63813

In the Linux kernel, the following vulnerability has been resolved: Revert "f2fs: remove non-uptodate folio from the page cache in movedatablock" This reverts commit 9609dd704725a40cd63d915f2ab6c44248a44598. The kernel panics are keeping to be reported especially when the f2fs partition get almos...

SUSE CVE-2026-63819

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on f2fsgetnodefoliora kernel BUG at fs/f2fs/file.c:845! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller 0 PREEMPTfull Hardware name: QEMU...

EUVD-2026-45486

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix missing read bio submission on large folio error f2fsreaddatalargefolio can keep a read bio across multiple readahead folios. If a later folio hits an error before any of its blocks are added to the bio, folioinbio is...

CVE-2026-63817

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate compress cache inode only when enabled F2FSCOMPRESSINO uses NMIsbi-maxnid as the synthetic inode number for the compressed page cache inode. That inode only exists when the compresscache mount option is enabled. Wh...

CVE-2026-53368 f2fs: fix fsck inconsistency caused by incorrect nat_entry flag usage

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by incorrect natentry flag usage f2fsneeddentrymark reads natentry flags without mutual exclusion with the checkpoint path, which can result in an incorrect inode block marking state. The...

Linux Distros Unpatched Vulnerability : CVE-2026-63819

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix to do sanity check on f2fsgetnodefoliora kernel BUG at fs/f2fs/file.c:845! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5336 Comm:...