Improper Locking Affecting kernel-rt package, versions <0:3.10.0-327.rt56.204.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELRT-5092140
- published 26 Jul 2021
- disclosed 19 Jan 2015
Introduced: 19 Jan 2015
CVE-2015-4170 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-rt to version 0:3.10.0-327.rt56.204.el7 or higher.
This issue was patched in RHSA-2015:2411.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.
References
- http://www.securityfocus.com/bid/74820
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae
- https://bugzilla.redhat.com/show_bug.cgi?id=1218879
- https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae
- https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://access.redhat.com/security/cve/CVE-2015-4170
- http://www.openwall.com/lists/oss-security/2015/05/26/1
- https://access.redhat.com/errata/RHSA-2015:2411