PT-2024-32240
CVE-2024-46840
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تاريخ النشر
2024-07-11
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تاريخ التحديث
2026-02-21
الوصف من
CVSS 4.0
7.1
عاليةالمقاييسAV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the handling of refs == 0 in snapshot delete in the btrfs file system. In the
reada function, a BUG ON(refs == 0) check could return a transient incorrect answer because it is not holding a lock on the extent leaf. Similarly, in walk down proc, the same check could happen due to extent tree corruption, and it has been changed to return -EUCLEAN. The do walk down() function correctly handles this case but returns -EIO, which is less appropriate than -EUCLEAN. The walk up proc function also had the same BUG ON(refs == 0) check and has been converted to proper error handling. The error message has been adjusted to provide more useful information.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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