Medium severity4.7NVD Advisory· Published May 2, 2016· Updated Jun 17, 2026
CVE-2015-4170
CVE-2015-4170
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.1_s390x:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.1_ppc64:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.1_ppc64le:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:*
- Range: <3.13-rc4-next-20131218
Patches
Vulnerability mechanics
References
8- www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xznvdPatch
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdVendor Advisory
- access.redhat.com/errata/RHSA-2016:1395nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVDB Entry
- www.openwall.com/lists/oss-security/2015/05/26/1nvd
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlnvd
- www.securityfocus.com/bid/74820nvd
- github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203aenvd
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