Bug 1220412 (CVE-2020-36775)

Summary:	VUL-0: CVE-2020-36775: kernel-source,kernel-source-azure,kernel-source-rt: f2fs: fix to avoid potential deadlock
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:	thomas.leroy, vasant.karasulli
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/395207/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-02-27 10:11:32 UTC

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

f2fs: fix to avoid potential deadlock

Using f2fs_trylock_op() in f2fs_write_compressed_pages() to avoid potential
deadlock like we did in f2fs_write_single_data_page().

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-36775
https://git.kernel.org/stable/c/8e8542437bb4070423c9754d5ba270ffdbae8c8d
https://git.kernel.org/stable/c/df77fbd8c5b222c680444801ffd20e8bbc90a56e
https://www.cve.org/CVERecord?id=CVE-2020-36775
https://git.kernel.org/stable/c/0478ccdc8ea016de1ebaf6fe6da0275c2b258c5b

Comment 1 Thomas Leroy 2024-02-27 10:18:09 UTC

Seems to be introduced in 5.4, but the patch was backported in SLE15-SP6, cve/linux-5.14 and stable, so I think all good except a changelog update

Comment 4 Andrea Mattiazzo 2024-06-07 12:26:14 UTC

All done, closing.