CVE-2020-27835

NameCVE-2020-27835
DescriptionA use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.258-1vulnerable
buster4.19.181-1vulnerable
buster (security)4.19.171-2vulnerable
bullseye5.10.26-1fixed
sid5.10.28-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)5.9.15-1

Notes

https://git.kernel.org/linus/3d2a9d642512c21a12d19b9250e7a835dcb41a79

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