Bug 1220642 (CVE-2021-46948)

Summary:	VUL-0: CVE-2021-46948: kernel: sfc: farch: fix TX queue lookup in TX event handling
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo, tbogendoerfer
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/395355/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-46948:5.5:(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 2024-02-29 10:02:27 UTC

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

sfc: farch: fix TX queue lookup in TX event handling

We're starting from a TXQ label, not a TXQ type, so
 efx_channel_get_tx_queue() is inappropriate (and could return NULL,
 leading to panics).

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-46948
https://www.cve.org/CVERecord?id=CVE-2021-46948
https://bugzilla.redhat.com/show_bug.cgi?id=2266479
https://lore.kernel.org/linux-cve-announce/20240227184057.2368370-13-gregkh@linuxfoundation.org/T/#u

Patch:
https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e

Comment 1 Andrea Mattiazzo 2024-02-29 10:02:52 UTC

Closing since all codestream are already patched or not affected.

Comment 4 Andrea Mattiazzo 2024-06-05 13:05:58 UTC

All done, closing.