Bug 1225582 (CVE-2023-52859)

Summary:	VUL-0: CVE-2023-52859: kernel: perf: hisi: Fix use-after-free when register pmu fails
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Joey Lee <jlee>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	gianluca.gabrielli, jlee
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/407145/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52859:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-05-29 10:34:07 UTC

In the Linux kernel, the following vulnerability has been resolved:

perf: hisi: Fix use-after-free when register pmu fails

When we fail to register the uncore pmu, the pmu context may not been
allocated. The error handing will call cpuhp_state_remove_instance()
to call uncore pmu offline callback, which migrate the pmu context.
Since that's liable to lead to some kind of use-after-free.

Use cpuhp_state_remove_instance_nocalls() instead of
cpuhp_state_remove_instance() so that the notifiers don't execute after
the PMU device has been failed to register.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52859
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52859.mbox
https://git.kernel.org/stable/c/0e1e88bba286621b886218363de07b319d6208b2
https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5
https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda
https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63
https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735
https://www.cve.org/CVERecord?id=CVE-2023-52859
https://bugzilla.redhat.com/show_bug.cgi?id=2282745