Search/CVE-2015-4170
● CVE — Medium

CVE-2015-4170

Vendorlinux, redhatProductlinux kernel, enterprise linux for ibm z systems eus, enterprise linux for power little endian eus, enterprise linux compute node eus, enterprise linux for power big endian eus, enterprise linux server eusDiscoveredMay 2, 2016UpdatedMay 6, 2026

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.

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CVSS v3.1
4.7 MEDIUM
EPSS
0.33%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 23, 2026
● 0.00pp
0.33% → 0.33% over 9 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Connections
7 relationships
Timeline
disclosure → media coverage
May 2, 2016
Disclosure — published as a CVE record. · last revised by NVD May 6, 2026