PT-2026-106574 · Linux · Linux
CVE-2026-98245
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Published
2026-10-06
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Updated
2026-10-06
None
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In the Linux kernel, the following vulnerability has been resolved:
btrfs: take commit root semaphore when iterating in mark block group to copy()
mark block group to copy() iterates over the commit root with
skip locking=true. A concurrent transaction commit can swap and free
the commit root during iteration, causing use-after-free when
accessing extent buffers.
Fix it by using path->need commit sem to protect the commit root search.
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Related Identifiers
Affected Products
Linux