vulnerability
Arch Linux: Integer Overflow or Wraparound (CVE-2022-39842)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:P/A:C) | Sep 5, 2022 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:P/A:C)
Published
Sep 5, 2022
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
I pxa3xx_gcu_write defined in drivers/video/fbdev/pxa3xx-gcu.c, a count parameter of type size_t is passed to words of type int. Then, copy_from_user() may cause a heap overflow because it is used as the third argument of copy_from_user()
Solution
arch-linux-upgrade-latest
References
- CVE-2022-39842
- https://attackerkb.com/topics/CVE-2022-39842
- URL-https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
- URL-https://github.com/torvalds/linux/commit/a09d2d00af53b43c6f11e6ab3cb58443c2cac8a7
- URL-https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- URL-https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- URL-https://lore.kernel.org/all/YylaC1wHHyLw22D3%40kadam/T/
- URL-https://www.debian.org/security/2022/dsa-5257
- CWE-190
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