Bug 1197393 – VUL-0: CVE-2022-1043: kernel-source-rt,kernel-source-azure,kernel-source: use after free within the handling of credentials in io_uring

Bug 1197393 - (CVE-2022-1043) VUL-0: CVE-2022-1043: kernel-source-rt,kernel-source-azure,kernel-source: use after free within the handling of credentials in io_uring

(CVE-2022-1043)
Summary:	VUL-0: CVE-2022-1043: kernel-source-rt,kernel-source-azure,kernel-source: use...

Status:	RESOLVED INVALID

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P5 - None Severity: Major
Target Milestone:	---
Assigned To:	Kernel Bugs
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/326934/
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Depends on:
Blocks:	1197596
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Reported:	2022-03-22 11:26 UTC by Thomas Leroy
Modified:	2022-03-28 11:35 UTC (History)
CC List:	2 users (show)

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Found By:	Security Response Team
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Description Thomas Leroy 2022-03-22 11:26:17 UTC

rh#1997328

A flaw was found in the Linux kernels io_uring implementation where an attacker with a local account can corrupt system memory, crash the system or escalate privileges.

Upstream fix commit:
https://github.com/torvalds/linux/commit/a30f895ad3239f45012e860d4f94c1a388b36d14

Commit introducing the bug:
https://github.com/torvalds/linux/commit/61cf93700fe6359552848ed5e3becba6cd760efa

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1997328
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-1043

Comment 1 Thomas Leroy 2022-03-22 11:40:59 UTC

Both fixing commit and the one introducing the bug are on SLE15-SP4-GA, stable and master only, therefore we are not affected.