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CVE-2026-43365

8.2 · HIGH

In the Linux kernel, the following vulnerability has been resolved: xfs: fix undersized l_iclog_roundoff values If the superblock doesn't list a log stripe unit, we set the incore log roundoff va…

Published May 8, 2026EPSS 0.59%

Overview

CVE-2026-43365 is a high-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

xfs: fix undersized l_iclog_roundoff values

If the superblock doesn't list a log stripe unit, we set the incore log

roundoff value to 512. This leads to corrupt logs and unmountable

filesystems in generic/617 on a disk with 4k physical sectors...

XFS (sda1): Mounting V5 Filesystem ff3121ca-26e6-4b77-b742-aaff9a449e1c

XFS (sda1): Torn write (CRC failure) detected at log block 0x318e. Truncating head block from 0x3197.

XFS (sda1): failed to locate log tail

XFS (sda1): log mount/recovery failed: error -74

XFS (sda1): log mount failed

XFS (sda1): Mounting V5 Filesystem ff3121ca-26e6-4b77-b742-aaff9a449e1c

XFS (sda1): Ending clean mount

...on the current xfsprogs for-next which has a broken mkfs. xfs_info

shows this...

meta-data=/dev/sda1 isize=512 agcount=4, agsize=644992 blks

= sectsz=4096 attr=2, projid32bit=1

= crc=1 finobt=1, s

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2ecda4b83749c1fef0c9dea4fd5e8b513aba3e40Refgit.kernel.org/stable/c/41e91dff2d3974730b5ee50daa8e27ec254cbf91Refgit.kernel.org/stable/c/446a1f5bb64ba38adb93cb043ff0f7b85e8937caRefgit.kernel.org/stable/c/52a8a1ba883defbfe3200baa22cf4cd21985d51aRefgit.kernel.org/stable/c/5afae524f83d6a18517298491a5624cb0eae5029Refgit.kernel.org/stable/c/5e7148402dfc4a5b7894d8e97b15e5c2e70924aaRefgit.kernel.org/stable/c/e88ce9f0536f3b2149afb70625cfc4bd74a4ac6d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43365?

CVE-2026-43365 is a high-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-43365?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-43365?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-43365?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43365 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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