CVE-2026-72437
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry When a read is retried, raid1_read_request() may be called with a pre-allocated r1_bio. If wait_read_barrier() fails for a REQ_NOWAIT read, the bio is completed and the function returns immediately. In this case the existing r1_bio is leaked. This fixes a leak of pre-allocated r1_bio structures for retried reads.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linuxd1eda529a4bf6b866d02755723ee0eb1f037a5ed, c66ed3e6371f5dba8f5d8ab810d6683ddc99201e, db58075bc9c2ad2731f9c063859b47104bc2e7ef, 6d92dbd73d19a0622f60352ce9d9379f7a760112, c6e6354295845698d2fdfa20b71fc404786f7e93, 69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < d1eda529a4bf6b866d02755723ee0eb1f037a5ed, 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < c66ed3e6371f5dba8f5d8ab810d6683ddc99201e, 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < db58075bc9c2ad2731f9c063859b47104bc2e7ef, 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < 6d92dbd73d19a0622f60352ce9d9379f7a760112, 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < c6e6354295845698d2fdfa20b71fc404786f7e93, 5aa705039c4fca84575539bfa2b8a28454a3d2ca ≤ v < 69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12, 5.17 | d1eda529a4bf6b866d02755723ee0eb1f037a5ed, c66ed3e6371f5dba8f5d8ab810d6683ddc99201e, db58075bc9c2ad2731f9c063859b47104bc2e7ef, 6d92dbd73d19a0622f60352ce9d9379f7a760112, c6e6354295845698d2fdfa20b71fc404786f7e93, 69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.