Description

** DISPUTED ** Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant.

References

http://www.securityfocus.com/bid/103356

https://bugzilla.suse.com/show_bug.cgi?id=1084755

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

https://lkml.org/lkml/2018/3/2/970

https://usn.ubuntu.com/3654-1/

https://usn.ubuntu.com/3654-2/

https://usn.ubuntu.com/3656-1/

https://www.debian.org/security/2018/dsa-4187

https://www.debian.org/security/2018/dsa-4188

Details

Risk Information

CVSS v2

CVSS v3