UBUNTU-CVE-2025-21775
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.
02 / AFFECTED SOFTWARE
Affected packages
28 explicit affected versions
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23 explicit affected versions
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7 explicit affected versions
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3 explicit affected versions
16 explicit affected versions
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21 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/9bd24927e3eeb85642c7baa3b28be8bea6c2a078
- https://git.kernel.org/stable/c/84b9ac59978a6a4e0812d1c938fad97306272cef
- https://git.kernel.org/stable/c/9bd24927e3eeb85642c7baa3b28be8bea6c2a078
- https://git.kernel.org/stable/c/b0e592dd46a0a952b41c3bf6c963afdd6a42b526
- https://git.kernel.org/stable/c/e505b83b9ee6aa0ae2f4395f573a66579ae403fb
- https://git.kernel.org/stable/c/e7e2e2318b1f085044126ba553a4e619842fc36d
- https://ubuntu.com/security/CVE-2025-21775
- https://ubuntu.com/security/notices/USN-7521-1
- https://ubuntu.com/security/notices/USN-7521-2
- https://ubuntu.com/security/notices/USN-7521-3
- https://ubuntu.com/security/notices/USN-7703-1
- https://ubuntu.com/security/notices/USN-7703-2
- https://ubuntu.com/security/notices/USN-7703-3
- https://ubuntu.com/security/notices/USN-7703-4
- https://ubuntu.com/security/notices/USN-7719-1
- https://ubuntu.com/security/notices/USN-7737-1
- https://www.cve.org/CVERecord?id=CVE-2025-21775