Race condition in Linux kernel - CVE-2015-9016
Published: May 2, 2018
Vulnerability identifier: #VU12339
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-9016
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists in blk_mq_tag_to_rq in blk-mq.c due to race condition when a request has been previously freed by blk_mq_complete_request. A local attacker can trigger use-after-free error and gain root privileges.
The weakness exists in blk_mq_tag_to_rq in blk-mq.c due to race condition when a request has been previously freed by blk_mq_complete_request. A local attacker can trigger use-after-free error and gain root privileges.
Affected software
Linux kernel
Debian Linux
Debian Linux
How to mitigate CVE-2015-9016
Install update from vendor's website.