CVE Catalog

CVE-2026-72370

Low risk· EPSS 10%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.20%

10th percentile - higher than 10% of all known CVEs

Summary

In the Linux kernel iomap code, during atomic direct I/O, when bio_iov_iter_get_pages() or the bounce helper builds a short bio, the REQ_ATOMIC size check rejects it before submission. The old error path only dropped the bio reference, leaving pages attached to the bio unreleased. The fix releases or unbounces the pages before falling through to out_put_bio.

Risk Assessment

Unreleased pages can lead to memory leaks, potentially causing system unavailability or crashes over time.

Recommendation

Apply a Linux kernel update that includes the fix for this vulnerability.

Other vulnerabilities in Linux kernel

See all
Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: iomap: release pages on atomic dio size mismatch If bio_iov_iter_get_pages() or the bounce helper succeeds but builds a short bio, the REQ_ATOMIC size check rejects it before submission. The old error path only dropped the bio reference, leaving any pages already attached to the bio unreleased. Release or unbounce the pages before falling through to out_put_bio on this error path. This bug was reported by sashiko: https://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com

Vulnerability data from NVD (NIST) · CISA KEV · EPSS