CVE-2023-54284

NameCVE-2023-54284
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1fixed
bullseye (security)5.10.247-1fixed
bookworm6.1.148-1fixed
bookworm (security)6.1.158-1fixed
trixie6.12.57-1fixed
trixie (security)6.12.48-1fixed
forky, sid6.17.13-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.216-1
linuxsourcebookworm6.1.37-1
linuxsource(unstable)6.3.7-1

Notes

https://git.kernel.org/linus/eed9496a0501357aa326ddd6b71408189ed872eb (6.4-rc1)

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