Divide By Zero Affecting perf package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-PERF-6543868
- published 4 Apr 2024
- disclosed 3 Apr 2024
Introduced: 3 Apr 2024
CVE-2024-26777 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8 perf.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-26777
- 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://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html