Use After Free Affecting perf package, versions <0:4.18.0-193.el8
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3737527
- published 26 Jul 2021
- disclosed 14 Jan 2020
Introduced: 14 Jan 2020
CVE-2020-7053 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-193.el8 or higher.
This issue was patched in RHSA-2020:1769.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel 4.14 longterm through 4.14.165 and 4.19 longterm through 4.19.96 (and 5.x before 5.2), there is a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c. This is related to i915_gem_context_destroy_ioctl in drivers/gpu/drm/i915/i915_gem_context.c.
References
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859522
- https://security.netapp.com/advisory/ntap-20200204-0002/
- https://access.redhat.com/security/cve/CVE-2020-7053
- http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7dc40713618c884bf07c030d1ab1f47a9dc1f310
- https://lore.kernel.org/stable/20200114183937.12224-1-tyhicks@canonical.com
- https://access.redhat.com/errata/RHSA-2020:1769
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://usn.ubuntu.com/4255-1/
- https://usn.ubuntu.com/4255-2/
- https://usn.ubuntu.com/4285-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/
- https://lore.kernel.org/stable/20200114183937.12224-1-tyhicks%40canonical.com