CVE-2026-45892

CVE-2026-45892 affects the Linux kernel ext4 extent handling. The issue occurs when splitting an unwritten extent in the middle with EXT4_EXT_MAY_ZEROOUT and EXT4_EXT_DATA_VALID2, potentially leaving a stale unwritten extent in the extent status tree after maps are updated. The mitigation is a pa...

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45892 ext4: drop extent cache after doing PARTIAL_VALID1 zeroout

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45899

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent...

PT-2026-43766

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system where a failure during the split extent process may cause the system to return an error immediately while some extents are still being processed...

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 found in Linux 5.10, 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...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011267)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011267 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: clear extent cache after moving/defragmenting extents The extent map cache can become stal...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013062)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013062 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: clear extent cache after moving/defragmenting extents The extent map cache can become stal...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007582)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007582 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: clear extent cache after moving/defragmenting extents The extent map cache can become stal...

SUSE-SU-2026:20564-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's-nocbcbkthread pointer bsc1254408. - CVE-2025-39880: ceph: fix race condition validating rparent before applying state...

SUSE-SU-2026:0263-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2022-50630: mm: hugetlb: fix UAF in hugetlbhandleuserfault bsc1254785. - CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer bsc1255576. -...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004031)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004031 advisory. A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in...

f2fs: fix to avoid updating zero-sized extent in extent cache

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SUSE 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...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003377)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003377 advisory. fs/f2fs/extentcache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service BUG via an application with...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001182)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001182 advisory. fs/f2fs/extentcache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service BUG via an application with...

AZL-74306 CVE-2025-68796 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 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...