- Vulnerability/
- CVE-2024-26777
CVE-2024-26777: fbdev: sis: Error out if pixclock equals zero
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b
- https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207
- https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e
- https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb
- https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313
- https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1
- https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52
- https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99
- https://launchpad.net/bugs/cve/CVE-2024-26777
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26777
- https://nvd.nist.gov/vuln/detail/CVE-2024-26777
- https://security-tracker.debian.org/tracker/CVE-2024-26777
- https://ubuntu.com/security/CVE-2024-26777
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/e421946be7d9bf545147bea8419ef8239cb7ca52
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