Bug 1224490 (CVE-2024-35908) - VUL-0: CVE-2024-35908: kernel: tls: get psock ref after taking rxlock to avoid leak
Summary: VUL-0: CVE-2024-35908: kernel: tls: get psock ref after taking rxlock to avoi...
Status: IN_PROGRESS
Alias: CVE-2024-35908
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/406597/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-35908:5.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-20 13:01 UTC by SMASH SMASH
Modified: 2024-07-19 17:46 UTC (History)
5 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-05-20 13:01:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

tls: get psock ref after taking rxlock to avoid leak

At the start of tls_sw_recvmsg, we take a reference on the psock, and
then call tls_rx_reader_lock. If that fails, we return directly
without releasing the reference.

Instead of adding a new label, just take the reference after locking
has succeeded, since we don't need it before.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-35908
https://www.cve.org/CVERecord?id=CVE-2024-35908
https://git.kernel.org/stable/c/30fabe50a7ace3e9d57cf7f9288f33ea408491c8
https://git.kernel.org/stable/c/417e91e856099e9b8a42a2520e2255e6afe024be
https://git.kernel.org/stable/c/b565d294e3d5aa809566a4d819835da11997d8b3
https://git.kernel.org/stable/c/f1b7f14130d782433bc98c1e1e41ce6b4d4c3096
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-35908.mbox
Comment 1 Joey Lee 2024-05-21 13:11:19 UTC 
https://www.suse.com/security/cve/CVE-2024-35908.html
cvss 5.5