CVE-2025-40158 — Expired Pointer Dereference in Linux
Severity
7.0HIGH
No vectorEPSS
0.0%
top 93.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 12
Latest updateFeb 24
Description
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU in ip6_output()
Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent
possible UAF.
We can remove rcu_read_lock()/rcu_read_unlock() pairs
from ip6_finish_output2().