Improper Locking The advisory has been revoked - it doesn't affect any version of package realtime-kernel (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-REALTIMEKERNEL-9857379
- published28 Apr 2025
- disclosed19 Jan 2015
Introduced: 19 Jan 2015
CVE-2015-4170 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream realtime-kernel package and not the realtime-kernel package as distributed by RHEL.
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
- https://bugzilla.redhat.com/show_bug.cgi?id=1218879
- https://access.redhat.com/security/cve/CVE-2015-4170
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae
- http://www.openwall.com/lists/oss-security/2015/05/26/1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/74820
- https://access.redhat.com/errata/RHSA-2016:1395
- https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae
- https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz