Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘f2fs: fix to do sanity check on extent cache correctly’” The syzbot reports a bug in f2fs as follows: UBSAN: Array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19 Index 1409 is out of range for type ‘le32923’ aka ‘unsigned...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix f2fsbugon when uninstalling filesystem call f2fsevictinode. Creating a large file during checkpoint disable until it runs out of space, then deleting it, and finally remounting to re-enable checkpoint triggers f2fsbugon...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to avoid the use of f2fsbugon in decvalidnodecount. As reported by Yanming in Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215897 I have encountered a bug in the F2FS file system in the kernel version...

Linux Distros Unpatched Vulnerability : CVE-2026-63812

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 incorrect FINOEXTENT handling in destroyextentnode When destroyextentnode sets the...

Linux Distros Unpatched Vulnerability : CVE-2026-63818

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: validate orphan inode entry count f2fsrecoverorphaninodes trusts the orphan block entrycount when replaying orphan inodes from the checkpoint pack. A...

Linux Distros Unpatched Vulnerability : CVE-2026-53018

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: avoid reading already updated pages during GC We found the following issue during fuzz testing: page: refcount:3 mapcount:0 mapping:00000000b6e89c65...

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...

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...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005485)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005485 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on sitbitmapsize w/ below testcase, resize will generate a corrupted...

Azure Linux 3.0 Security Update: kernel (CVE-2025-38347)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-38347 advisory. - In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on ino and...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001301)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001301 advisory. An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect userblockcou...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003257)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003257 advisory. An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect userblockcou...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003082)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003082 advisory. An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect userblockcou...

Linux Distros Unpatched Vulnerability : CVE-2025-71105

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: use global inlinexattrslab instead of per-sb slab cache As Hong Yun reported in mailing list: loop7: detected capacity change from 0 to 131072 -----------...

UBUNTU-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...

AZL-74387 CVE-2025-68772 affecting package kernel for versions less than 6.6.121.1-1

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-2025-68796 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...

Linux Distros Unpatched Vulnerability : CVE-2025-68772

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 updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0...

Linux Distros Unpatched Vulnerability : CVE-2025-68796

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 updating zero-sized extent in extent cache As syzbot reported: F2FS-fs loop0: updateextenttreerange: extent len is zero, type: 0, extent 0, 0...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992900)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992900 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use f2fsbugon in f2fsnewnodepage As Dipanjan Das reported, syzkaller found a...