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Linux CVE-2026-72439

| EUVDEUVD-2026-59338
2026-08-15 Linux GHSA-xqj6-523w-5f3g

Lifecycle Timeline

2
Patch available
Aug 15, 2026 - 07:20 EUVD
CVE Published
Aug 15, 2026 - 05:56 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

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

md/raid10: fix writes_pending leak on write request failures

raid10_make_request() acquires a writes_pending reference with md_write_start() before dispatching write requests. Several failure paths in raid10_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped.

Make raid10_write_request() return a status indicating whether the write request was successfully queued. This allows raid10_make_request() to release the writes_pending reference with md_write_end() when a write request fails.

Analysis

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

md/raid10: fix writes_pending leak on write request failures

raid10_make_request() acquires a writes_pending reference with md_write_start() before dispatching write requests. Several failure paths in raid10_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped.

Make raid10_write_request() return a status indicating whether the write request was successfully queued. This allows raid10_make_request() to release the writes_pending reference with md_write_end() when a write request fails.

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CVE-2026-72439 vulnerability details – vuln.today

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