CVE-2026-72438 (GCVE-0-2026-72438)
Vulnerability from cvelistv5
Published
2026-08-15 05:56
Modified
2026-10-21 12:44
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix writes_pending and barrier reference leaks on discard failures raid10_make_request() acquires a writes_pending reference with md_write_start() before calling raid10_handle_discard(). Several failure paths in raid10_handle_discard() complete the bio and return without releasing the corresponding reference, causing md_write_end() to be skipped. Call md_write_end() before returning from these failure paths to keep writes_pending accounting balanced. Additionally, discard split allocation failures can occur after wait_barrier() succeeds. Those paths return without calling allow_barrier(), leaking the associated barrier reference. Release the barrier before returning from those paths.
References
Impacted products
Vendor Product Version
Linux Linux Version: c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Version: c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Version: c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Version: c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Version: c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Version: 39db562b3fedb93978a7e42dd216b306740959f8
Version: 5.15.111   ≤
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