CVE-2024-26632

medium

Description

In the Linux kernel, the following vulnerability has been resolved: block: Fix iterating over an empty bio with bio_for_each_folio_all If the bio contains no data, bio_first_folio() calls page_folio() on a NULL pointer and oopses. Move the test that we've reached the end of the bio from bio_next_folio() to bio_first_folio(). [axboe: add unlikely() to error case]

References

https://git.kernel.org/stable/c/ca3ede3f5893e2d26d4dbdef1eec28a8487fafde

https://git.kernel.org/stable/c/c6350b5cb78e9024c49eaee6fdb914ad2903a5fe

https://git.kernel.org/stable/c/a6bd8182137a12d22d3f2cee463271bdcb491659

https://git.kernel.org/stable/c/7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7

Details

Source: Mitre, NVD

Published: 2024-03-18

Updated: 2024-03-18

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:L/AC:L/Au:M/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.4

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Severity: Medium