CVE-2026-72437

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.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72437.json"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

5aa705039c4fca84575539bfa2b8a28454a3d2ca

Fixed

d1eda529a4bf6b866d02755723ee0eb1f037a5ed

Fixed

c66ed3e6371f5dba8f5d8ab810d6683ddc99201e

Fixed

db58075bc9c2ad2731f9c063859b47104bc2e7ef

Fixed

6d92dbd73d19a0622f60352ce9d9379f7a760112

Fixed

c6e6354295845698d2fdfa20b71fc404786f7e93

Fixed

69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72437.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

5.17.0

Fixed

6.1.178

Type: ECOSYSTEM
Events: Introduced

6.2.0

Fixed

6.6.145

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.97

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.40

Type: ECOSYSTEM
Events: Introduced

6.19.0

Fixed

7.1.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72437.json"