CVE-2025-40168
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/11/2025
Last modified:
12/11/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().<br />
<br />
smc_clc_prfx_match() is called from smc_listen_work() and<br />
not under RCU nor RTNL.<br />
<br />
Using sk_dst_get(sk)->dev could trigger UAF.<br />
<br />
Let&#39;s use __sk_dst_get() and dst_dev_rcu().<br />
<br />
Note that the returned value of smc_clc_prfx_match() is not<br />
used in the caller.