fbdev: sis: Error out if pixclock equals zero

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No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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.

Source published

3 Apr 2024 17:01:02 UTC

Source modified

15 Oct 2026 00:38:32 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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