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

The CVE-2025-71065 entry concerns a deadlock in the Linux kernel’s f2fs subsystem. The provided details describe a four-lock deadlock chain involving: Lock A (fs_reclaim), Lock B (sb_start_intwrite), Lock C (f2fs_lock_op), and Lock D (f2fs_down_write). The root-cause trace shows kswapd and other ...

CVE-2025-68796 f2fs: fix to avoid updating zero-sized extent in extent cache

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-2025-68796

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-2025-68796 f2fs: fix to avoid updating zero-sized extent in extent cache

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-2025-68796

The CVE-2025-68796 entry concerns the Linux kernel's f2fs filesystem. A zero-sized extent could be added to the extent cache during error handling in f2fs_zero_range, leading to a potential invalid state observed as a kernel BUG in fs/f2fs/extent_cache.c. The publicly documented fix is to avoid i...

CVE-2025-68772 f2fs: fix to avoid updating compression context during writeback

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-2025-68772

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-2025-68769 f2fs: fix return value of f2fs_recover_fsync_data()

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

The CVE-2025-68769 entry covers a Linux kernel vulnerability in F2FS where f2fs_recover_fsync_data() would return an incorrect value during mounting with ro,norecovery or ro,disable_roll_forward, leading to a NULL/positive error propagated to vfs_get_tree() and a kernel BUG. The issue manifests a...

CVE-2025-68769 f2fs: fix return value of f2fs_recover_fsync_data()

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-2025-68769

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...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate the first page in the error path of f2fstruncate The syzbot reports the following bug: loop0: A change in capacity was detected, from 0 to 40427. F2FS-fs loop0: Incorrect SSA boundaries: start at 3584, end a...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed to avoid a panic when fallocation fails for pinfile. The syzbot reports a f2fs bug as follows: ------------ Cut here ------------ Kernel BUG at fs/f2fs/segment.c:2746! CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed the issue of detecting potentially corrupted nid entries in freenidlist. According to reports, the disk-related footer.ino and footer.nid files are identical and outside the acceptable range. Therefore, we need to add...

PT-2026-2586

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contained a potential deadlock situation within the f2fs filesystem. The deadlock involved a chain of locks held by kswapd and other processes during operations like ino...

ROS-20260113-7327

A vulnerability in the fs/f2fs/file.c component of the Linux operating system kernel is related to simultaneous execution using a shared resource with improper synchronization. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Linux Distros Unpatched Vulnerability : CVE-2025-71065

"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 avoid potential deadlock As Jiaming Zhang and syzbot reported, there is potential deadlock in f2fs as below: Chain exists of: &sbi-cprwsem --...

ROS-20260113-7393

A vulnerability in the getsecsrequired function of the fs/f2fs/segment.h component of the Linux operating system kernel is related to the allocation of unlimited memory. Exploitation of the vulnerability could allow an attacker to cause a denial of service...