Vulnerability CVE-2022-2153
Published: 2022-08-31

Description:
A flaw was found in the Linux kernel??s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

 References:
https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce
https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44
https://bugzilla.redhat.com/show_bug.cgi?id=2069736
https://www.openwall.com/lists/oss-security/2022/06/22/1
https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a
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