CVE-2021-44879

medium

Description

In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

References

https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/

https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3

https://bugzilla.kernel.org/show_bug.cgi?id=215231

Details

Source: Mitre, NVD

Published: 2022-02-14

Updated: 2024-01-11

Risk Information

CVSS v2

Base Score: 4.3

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

Severity: Medium

CVSS v3

Base Score: 5.5

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