Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Fix to wait on block writeback in the postread case. If the inode is compressed but not encrypted, the function f2fswaitonblockwriteback was not called properly to wait for the GC-ed page writeback in the IPU write path...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fix to correctly check the readonly condition. In the following case, it is possible to mount a multi-device image with the rw option. However, if one of the secondary devices is set as ro, subsequent updates will cause a...

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:...

SUSE 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...

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...

CVE-2026-43349 f2fs: fix to avoid uninit-value access in f2fs_sanity_check_node_footer

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...

PT-2026-39000

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the f2fs file system where the f2fs finish read bio function may access uninitialized data in a folio if the system fails to read data from the device into that folio...

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 f2fssanitychecknodefooter function in the f2fs file system. This function accesses...

Linux Distros Unpatched Vulnerability : CVE-2026-43349

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid uninit-value access in f2fssanitychecknodefooter syzbot reported a f2fs b...

SUSE CVE-2026-31702

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblocking f2fswaitonallpages in f2fsputsuper on a concurrent unmount CPU. The...

SUSE CVE-2026-31714

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid memory leak in f2fsrename syzbot reported a f2fs bug as below: BUG: memory leak unreferenced object 0xffff888127f70830 size 16: comm "syz.0.23", pid 6144, jiffies 4294943712 hex dump first 16 bytes: 3c af 57 72...

SUSE CVE-2026-31715

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...

Linux Distros Unpatched Vulnerability : CVE-2026-31702

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblockin...

Linux Distros Unpatched Vulnerability : CVE-2026-31715

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case generic/107 and syzbot have both reported a NULL pointer dereference. The...

CVE-2026-31714

A flaw was found in the Linux kernel's F2FS Flash-Friendly File System component. This vulnerability, a memory leak, occurs within the f2fsrename function. A local attacker could exploit this by repeatedly performing file rename operations, leading to a gradual consumption of system memory. Over...

CVE-2026-31702

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblocking f2fswaitonallpages in f2fsputsuper on a concurrent unmount CPU. The...

CVE-2026-31715

In Linux kernel (f2fs), CVE-2026-31715 is a use-after-free triggered by decrementing sbi->nr_pages[] during F2FS_WB_CP_DATA handling. The root cause is that f2fs_put_super() calls iput(sbi->node_inode) and NULLs the node_inode after the counter reaches zero, allowing f2fs_in_warm_node_list(...

CVE-2026-31715 f2fs: fix UAF caused by decrementing sbi->nr_pages[] in f2fs_write_end_io()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...

CVE-2026-31715

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...

CVE-2026-31715 f2fs: fix UAF caused by decrementing sbi->nr_pages[] in f2fs_write_end_io()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...