CVE-2024-26632

kernel: block: Fix iterating over an empty bio with bio_for_each_folio_all

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 18, 2024

Updated · August 5, 2026

Description

A vulnerability was found in block subsystem of Linux Kernel causing a system crash when iterating an empty bio using bio_for_each_folio_all() function. This occurred because bio_first_folio() called page_folio() on a NULL pointer.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference