Race Condition Affecting kernel-rt-devel package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTDEVEL-2004526
- published 26 Jul 2021
- disclosed 15 Jan 2020
Introduced: 15 Jan 2020
CVE-2020-12652 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 kernel-rt-devel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a "double fetch" vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states "The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power."
References
- https://security.netapp.com/advisory/ntap-20200608-0001/
- https://access.redhat.com/security/cve/CVE-2020-12652
- https://www.debian.org/security/2020/dsa-4698
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.14
- https://github.com/torvalds/linux/commit/28d76df18f0ad5bcf5fa48510b225f0ed262a99b
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28d76df18f0ad5bcf5fa48510b225f0ed262a99b
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html