CVE-2024-26777

NameCVE-2024-26777
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5681-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.304-1vulnerable
bullseye5.10.209-2vulnerable
bullseye (security)5.10.216-1fixed
bookworm6.1.76-1vulnerable
bookworm (security)6.1.90-1fixed
trixie6.7.12-1fixed
sid6.8.9-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.216-1DSA-5681-1
linuxsourcebookworm6.1.82-1
linuxsource(unstable)6.7.7-1

Notes

https://git.kernel.org/linus/e421946be7d9bf545147bea8419ef8239cb7ca52 (6.8-rc2)

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