NULL pointer dereference in Linux kernel smc

1) NULL pointer dereference

EUVDB-ID: #VU90627

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26615

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the __smc_diag_dump() function in net/smc/smc_diag.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22
http://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be
http://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d
http://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a
http://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a
http://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9
http://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6
http://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.