Bug 1226988 (CVE-2024-39470) - VUL-0: CVE-2024-39470: kernel: eventfs: Fix a possible null pointer dereference in eventfs_find_events()
Summary: VUL-0: CVE-2024-39470: kernel: eventfs: Fix a possible null pointer dereferen...
Status: RESOLVED FIXED
Alias: CVE-2024-39470
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/412101/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-39470:4.4:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-06-26 07:40 UTC by SMASH SMASH
Modified: 2024-07-01 19:53 UTC (History)
3 users (show)

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

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Description SMASH SMASH 2024-06-26 07:40:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

eventfs: Fix a possible null pointer dereference in eventfs_find_events()

In function eventfs_find_events,there is a potential null pointer
that may be caused by calling update_events_attr which will perform
some operations on the members of the ei struct when ei is NULL.

Hence,When ei->is_freed is set,return NULL directly.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-39470
https://www.cve.org/CVERecord?id=CVE-2024-39470
https://git.kernel.org/stable/c/5ade5fbdbbb1f023bb70730ba4d74146c8bc7eb9
https://git.kernel.org/stable/c/7a1b2d138189375ed1dcd7d0851118230221bd1d
https://git.kernel.org/stable/c/d4e9a968738bf66d3bb852dd5588d4c7afd6d7f4
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-39470.mbox
https://bugzilla.redhat.com/show_bug.cgi?id=2294311
Comment 2 Andrea Mattiazzo 2024-07-01 13:33:51 UTC 
All done, closing.