CVE-2018-20836

Description

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

References

https://www.debian.org/security/2019/dsa-4497

https://www.debian.org/security/2019/dsa-4495

https://usn.ubuntu.com/4076-1/

https://support.f5.com/csp/article/K11225249

https://security.netapp.com/advisory/ntap-20190719-0003/

https://seclists.org/bugtraq/2019/Aug/18

https://seclists.org/bugtraq/2019/Aug/13

https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html

https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html

https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae

http://www.securityfocus.com/bid/108196

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3