Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: a fix was made to avoid a Use-After-Free issue in f2fswriteendio. According to syzbot, a use-after-free issue occurred in f2fswriteendio. This issue is caused by the following race condition: Loop device Unmount Worker...

SUSE CVE-2026-43075

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2writeendinline KASAN reports a use-after-free write of 4086 bytes in ocfs2writeendinline, called from ocfs2writeendnolock during a copyfilerange splice fallback on a corrupted ocfs2 filesyst...

CVE-2026-43075 ocfs2: fix out-of-bounds write in ocfs2_write_end_inline

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2writeendinline KASAN reports a use-after-free write of 4086 bytes in ocfs2writeendinline, called from ocfs2writeendnolock during a copyfilerange splice fallback on a corrupted ocfs2 filesyst...

PT-2026-37385

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write exists in the ocfs2 write end inline function. The issue occurs because ocfs2 try to write inline data relies on the on-disk id count field to determine if a write...

f2fs: fix use-after-free of sbi in f2fs_compress_write_end_io()

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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(...

EUVD-2026-26524

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:...

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-2026-31702

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...

EUVD-2026-26511

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...

PT-2026-36345

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free condition exists in the f2fs component of the Linux kernel. The issue occurs in the f2fs write end io function when sbi-nr pagesF2FS WB CP DATA is decremented to zero...

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 improper order of calls to decpagecount in f2fscompresswriteendio. This could lead to accessi...

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 reuse of freed memory during the decrementing of sbi-nrpages in f2fswriteendio. This could le...

SUSE 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-2026-12904

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...

CVE-2026-23265

Summary: CVE-2026-23265 relates to the Linux kernel F2FS filesystem. The issue arises from a faulty sanity check on the node footer during read/end_io paths, leading to an inconsistency between the node page index (nid) and footer.nid. If a node page footer is corrupted (e.g., in a fuzzed image) ...

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...

CVE-2026-23265 f2fs: fix to do sanity check on node footer in {read,write}_end_io

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...