CVE-2024-26777Medium· 5.5▾ SunlitIn 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 valu…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
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.
linux_kernel < 4.19.308linux_kernel >= 4.20, < 5.4.270linux_kernel >= 5.5, < 5.10.211linux_kernel >= 5.11, < 5.15.150linux_kernel >= 5.16, < 6.1.80linux_kernel >= 6.2, < 6.6.19linux_kernel >= 6.7, < 6.7.7linux_kernel = 6.8debian_linux = 10.0Upgrade past the affected range:
linux_kernel 6.7.7Connected by shared product, vendor, weakness, or advisory.
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