Resource Exhaustion Affecting kernel-rt-trace-devel package, versions <0:3.10.0-862.rt56.804.el7
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2099170
- published 26 Jul 2021
- disclosed 21 Sep 2017
Introduced: 21 Sep 2017
CVE-2017-12190 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-862.rt56.804.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.
References
- http://www.securityfocus.com/bid/101911
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467
- https://bugzilla.redhat.com/show_bug.cgi?id=1495089
- http://seclists.org/oss-sec/2017/q4/52
- https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058
- https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467
- https://support.f5.com/csp/article/K93472064?utm_source=f5support&utm_medium=RSS
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8
- https://access.redhat.com/security/cve/CVE-2017-12190
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
- https://access.redhat.com/errata/RHSA-2018:0676
- https://usn.ubuntu.com/3582-1/
- https://usn.ubuntu.com/3582-2/
- https://usn.ubuntu.com/3583-1/
- https://usn.ubuntu.com/3583-2/
- https://support.f5.com/csp/article/K93472064?utm_source=f5support&%3Butm_medium=RSS