CVE-2026-72438
Description
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.
How to fix
- Linux Linux2d264c00beadcc67f16d683ab27eed28c047ba2e, 80ac31cce55432034a9eb98262c92ace7866e494, fea33968592559a55a3f5a96a6386bebcaf988a8, 11b35d1906a7277a3d64afe34224133b44327328, d1324b41dabd26787559efaeb430643c627c1eb0, 393d687131d8aa8c7e4de2cb494438e145d20fc2, 5.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < 2d264c00beadcc67f16d683ab27eed28c047ba2e, c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < 80ac31cce55432034a9eb98262c92ace7866e494, c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < fea33968592559a55a3f5a96a6386bebcaf988a8, c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < 11b35d1906a7277a3d64afe34224133b44327328, c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < d1324b41dabd26787559efaeb430643c627c1eb0, c9aa889b035fca4598ae985a0f0c76ebbb547ad2 ≤ v < 393d687131d8aa8c7e4de2cb494438e145d20fc2, 39db562b3fedb93978a7e42dd216b306740959f8, 5.15.111 ≤ v < 5.16, 5.17 | 2d264c00beadcc67f16d683ab27eed28c047ba2e, 80ac31cce55432034a9eb98262c92ace7866e494, fea33968592559a55a3f5a96a6386bebcaf988a8, 11b35d1906a7277a3d64afe34224133b44327328, d1324b41dabd26787559efaeb430643c627c1eb0, 393d687131d8aa8c7e4de2cb494438e145d20fc2, 5.16 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.