CVE-2026-46175 f2fs: fix fsck inconsistency caused by FGGC of node block

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 inconsistent fsck operations during the block migration of f2fs FGGC nodes. This vulnerability ma...

PT-2026-44298

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An inconsistency occurs in the f2fs file system during Foreground Garbage Collection FGGC node block migration. The Garbage Collection process fails to clear the dentry and fsync marks...

PT-2026-44317

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the f2fs file system between the destruction of extent nodes and the writeback process. The function f2fs destroy extent node fails to set the FI NO EXTENT fla...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fixed a UAF issue in f2fsinodeinfo in f2fsfreedic. The decompressioctx may be released asynchronously after I/O completion. If this file is deleted immediately after reading, and the kworker responsible for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fixed a null pointer panic in the tracepoint of replaceatomicwriteblock. A kernel panic occurs when oldaddr is NULL. https://bugzilla.kernel.org/showbug.cgi?id=217266 BUG: Null pointer dereferencing in the kernel; address:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed to avoid a use-after-free in f2fsstopgcthread. The syzbot reports a f2fs bug as follows: dumpstack lib/dumpstack.c:88 inline dumpstacklvl+0x241/0x360 lib/dumpstack.c:114 printreport+0xe8/0x550 mm/kasan/report.c:491...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Split the initial and dynamic conditions for extentcache. We need to allocate the extentcache tree without dynamic conditions to avoid a panic caused by a missing condition as described below. Create a file with a...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable code execution vulnerability in the multi-device functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can lead to information overwriting, resulting in code execution. An attacker can provide a malicious file to trigger this vulnerability...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: checked the validation of faultattrs in f2fsbuildfaultattr. It failed to check the validation of faultattrs in parseoptions; we will fix this by adding a check condition in f2fsbuildfaultattr. Also, use f2fsbuildfaultatt...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to avoid using f2fsbugon in f2fsnewnodepage. As reported by Dipanjan Das , syzkaller discovered a bug in f2fs as follows: RIP: 0010:f2fsnewnodepage+0x19ac/0x1fc0 fs/f2fs/node.c:1295 Call Trace: writeallxattrs...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoided format-overflow warnings With GCC and the W=1 option, there is a warning like this: fs/f2fs/compress.c: In the function ‘f2fsinitpagearraycache’: fs/f2fs/compress.c:1984:47: Error: The ‘%u’ directive is writing 1 to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Fix to perform sanity checks on iextraisize in isalive syzbot identified a bug in f2fs: BUG: KASAN: Out-of-bounds access to slab data in datablkaddr, fs/f2fs/f2fs.h:2891 inline BUG: KASAN: Out-of-bounds access to slab da...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: The issue of information leakage in f2fsmoveInlinedirents has been fixed. When converting an inline directory to a regular one, f2fs leaks uninitialized memory to the disk because it does not initialize the entire directory...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable information disclosure vulnerability in the initnodemanager functionality of F2fs-Tools F2fs.Fsck 1.12 and 1.13. A specially crafted filesystem can be used to disclose information. An attacker can provide a malicious file to trigger this vulnerability...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable code execution vulnerability in the fsckchkorphannode functionality of the F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can lead to a heap buffer overflow, resulting in code execution. An attacker can provide a malicious file to trigger this vulnerability...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: The online repair mechanism for corrupted directories has been removed. The syzbot reports the following f2fs bug: Kernel BUG at fs/f2fs/inode.c:896! RIP: 0010:f2fsevict inode+0x1598/0x15c0 fs/f2fs/inode.c:896 Call trace:...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable information disclosure vulnerability in the getdnodeofdata functionality of the F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can lead to information disclosure. An attacker can provide a malicious file that triggers this vulnerability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Revert “f2fs: block cache/dio write during f2fsenablecheckpoint”. This revert commits 196c81fdd438f7ac429d5639090a9816abb9760a. The original patch might cause a deadlock; revert it. write remount - writebegin - lockpage --- lock ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: The “clear SBINLINECRYPT flag” option in “defaultoptions” has been removed. In “f2fsremount”, the “SBINLINECRYPT flag” will be cleared and reset. If a new file is created or an existing file is opened during this period,...