Bug 1227620 (CVE-2024-39493)

Summary:	VUL-0: CVE-2024-39493: kernel: crypto: qat - fix ADF_DEV_RESET_SYNC memory leak
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Torsten Duwe <duwe>
Status:	IN_PROGRESS ---	QA Contact:	Security Team bot <security-team>
Severity:	Major
Priority:	P3 - Medium	CC:	camila.matos, mkoutny
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/413565/
Whiteboard:	CVSSv3.1:SUSE:CVE-2024-39493:6.1:(AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-07-10 10:31:57 UTC

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

crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak

Using completion_done to determine whether the caller has gone
away only works after a complete call.  Furthermore it's still
possible that the caller has not yet called wait_for_completion,
resulting in another potential UAF.

Fix this by making the caller use cancel_work_sync and then freeing
the memory safely.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-39493
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-39493.mbox
https://git.kernel.org/stable/c/0ce5964b82f212f4df6a9813f09a0b5de15bd9c8
https://git.kernel.org/stable/c/6396b33e98c096bff9c253ed49c008247963492a
https://git.kernel.org/stable/c/a718b6d2a329e069b27d9049a71be5931e71d960
https://git.kernel.org/stable/c/3fb4601e0db10d4fe25e46f3fa308d40d37366bd
https://git.kernel.org/stable/c/e7428e7e3fe94a5089dc12ffe5bc31574d2315ad
https://git.kernel.org/stable/c/c2d443aa1ae3175c13a665f3a24b8acd759ce9c3
https://git.kernel.org/stable/c/d0fd124972724cce0d48b9865ce3e273ef69e246
https://git.kernel.org/stable/c/d3b17c6d9dddc2db3670bc9be628b122416a3d26
https://www.cve.org/CVERecord?id=CVE-2024-39493