CVE-2026-80820

Summary

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

xfs: don't livelock in scrub on a circular unlinked list

LOLLM points out that online fsck can livelock if an unlinked inode list contains a loop. Use a bitmap to detect cycles.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa12890aebb895951720ff884eab1c99a30645b29 < 599453f83458b57995290a1d31200c263e2c2691affected
LinuxLinuxa12890aebb895951720ff884eab1c99a30645b29 < 159d162fe80bd56573cafde5801bd5a90a3dd1acaffected
LinuxLinuxa12890aebb895951720ff884eab1c99a30645b29 < 56407a61a8bb85b884de802d39635abdb0ea7408affected
LinuxLinuxa12890aebb895951720ff884eab1c99a30645b29 < 527eaaefddb6ec5c83a06c9a1559960dd6361753affected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux6.12.106 <= 6.12.*unaffected
LinuxLinux6.18.47 <= 6.18.*unaffected
LinuxLinux7.1.11 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References