vulnerability
Arch Linux: NULL Pointer Dereference (CVE-2021-44879)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Feb 13, 2022 | Jul 11, 2025 | Feb 12, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Feb 13, 2022
Added
Jul 11, 2025
Modified
Feb 12, 2026
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.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-44879
- https://attackerkb.com/topics/CVE-2021-44879
- URL-https://bugzilla.kernel.org/show_bug.cgi?id=215231
- URL-https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
- URL-https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f
- URL-https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- URL-https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- URL-https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/
- CWE-476
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