vulnerability
Arch Linux: Use After Free (CVE-2022-42703)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Oct 9, 2022 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Oct 9, 2022
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.
Solution
arch-linux-upgrade-latest
References
- CVE-2022-42703
- https://attackerkb.com/topics/CVE-2022-42703
- URL-https://bugs.chromium.org/p/project-zero/issues/detail?id=2351
- URL-https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7
- URL-https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b
- URL-https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b
- URL-https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html
- CWE-416
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