CVE-2026-46175

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by FGGC of node block During FGGC node block migration, fsck may incorrectly treat the migrated node block as fsync-written data. The reproduction scenario: root@vm:/mnt/f2fs seq 1 2048 | xargs...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the nodecnt competition between the destruction and write-back operations of extent nodes in f2fs...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to prevent race conditions during the fsyncentryslab access by multiple f2fs filesystem instances. As reported by syzbot, there is a use-after-free issue during f2fs recovery: A use-after-free occurs when...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fixed the issue of dereferencing a stale list iterator after the loop body. The list iterator variable will become a bogus pointer if no break is executed. Dereferencing it in this case, cur-page could result in an...

CVE-2026-43349

A flaw was found in the Linux kernel's Flash-Friendly File System f2fs. This vulnerability allows a local attacker to cause an uninitialized value access in the f2fssanitychecknodefooter function. This occurs when the system fails to read data from a device into a folio, potentially leading to...

UBUNTU-CVE-2026-43349

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid uninit-value access in f2fssanitychecknodefooter syzbot reported a f2fs bug as below: BUG: KMSAN: uninit-value in f2fssanitychecknodefooter+0x374/0xa20 fs/f2fs/node.c:1520 f2fssanitychecknodefooter+0x374/0xa20...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed the issue where preallocated blocks were truncated in f2fsfileopen. Chenyuwen has reported the following f2fs bugs: Unable to handle a NULL pointer dereferencing at the virtual address 0000000000000011...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed the issue of not checking the atomicwrite status in f2fs ioctl interfaces. Some f2fs ioctl interfaces, such as f2fsiocsetpinfile, f2fsmovefilerange, and f2fsdefragmentrange, failed to check the atomicwrite status, whi...

Astra Linux - уязвимость в linux-5.15, linux, linux-5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: let's avoid panic if extenttree is not created This patch avoids the below panic. pc : lookupextenttree+0xd8/0x760 lr : f2fsdowritedatapage+0x104/0x87c sp : ffffffc010cbb3c0 x29: ffffffc010cbb3e0 x28: 0000000000000000 x27:...

CVE-2026-31715

A flaw was found in the Linux kernel's Flash-Friendly File System f2fs. A use-after-free vulnerability exists due to incorrect handling of page counts during concurrent write operations and unmounting. This can lead to a NULL pointer dereference, causing the system to panic and resulting in a...

CVE-2026-23265

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on node footer in read,writeendio ----------- cut here ------------ kernel BUG at fs/f2fs/data.c:358! Call Trace: blkupdaterequest+0x5eb/0xe70 block/blk-mq.c:987 blkmqendrequest+0x3e/0x70...

EUVD-2026-9404

In the Linux kernel, the following vulnerability has been resolved: Revert "f2fs: block cache/dio write during f2fsenablecheckpoint" This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a. Original patch may cause below deadlock, revert it. write remount - writebegin - lockpage --- lock A -...

CVE-2026-23233

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid mapping wrong physical block for swapfile Xiaolong Guo reported a f2fs bug in bugzilla 1 1 https://bugzilla.kernel.org/showbug.cgi?id=220951 Quoted: "When using stress-ng's swap stress test on F2FS filesystem...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a deadlock issue in the f2fsenablecheckpoint function...

ROS-20260220-73-0008

A vulnerability in the totalvalidblockcount function of the fs/f2fs/f2fs.h library of the Linux kernel is related to insufficient input validation. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

ROS-20260126-73-0036

A vulnerability in the f2fs component of the Linux operating system kernel is related to unchecked array indexing. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004056)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004056 advisory. In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause a NULL pointer dereference in f2fsrecoverfsyncdata in fs/f2fs/recovery.c. This is...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001103)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001103 advisory. The sanitycheckckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002603)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002603 advisory. The sanitycheckrawsuper function in fs/f2fs/super.c in the Linux kernel before 4.11.1 does not validate the segment count, which allows local users to gain privilege...

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...