Bug 2348508 (CVE-2025-21775) - CVE-2025-21775 kernel: can: ctucanfd: handle skb allocation failure
Summary: CVE-2025-21775 kernel: can: ctucanfd: handle skb allocation failure
Keywords:
Status: NEW
Alias: CVE-2025-21775
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-27 03:01 UTC by OSIDB Bzimport
Modified: 2025-02-27 11:42 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2025-02-27 03:01:11 UTC 
In the Linux kernel, the following vulnerability has been resolved:

can: ctucanfd: handle skb allocation failure

If skb allocation fails, the pointer to struct can_frame is NULL. This
is actually handled everywhere inside ctucan_err_interrupt() except for
the only place.

Add the missed NULL check.

Found by Linux Verification Center (linuxtesting.org) with SVACE static
analysis tool.
Comment 1 Michal Findra 2025-02-27 11:10:31 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022606-CVE-2025-21775-3137@gregkh/T
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