CVE-2025-40168

CVE-2025-40168

High · published November 12, 2025

CVSS v3.1
8.1
EPSS
0%
Percentile
35.2
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

smc_clc_prfx_match() is called from smc_listen_work() and

not under RCU nor RTNL.

Using sk_dst_get(sk)->dev could trigger UAF.

Let's use __sk_dst_get() and dst_dev_rcu().

Note that the returned value of smc_clc_prfx_match() is not

used in the caller.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00420 · 35.2th percentile
Published
2025-11-12T16:15Z
References (5)
https://git.kernel.org/stable/c/235f81045c008169cc4e1955b4a64e118eebe61b · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/326e5cf301d0bec0a672aa834d8254c4f9df6255 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f119c37aa293af41400cccb3d89fab8dcf774b0 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f5f52a5842937f945582a93cb9daed9ea526fee · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d26e80f7fb62d77757b67a1b94e4ac756bc9c658 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 12 NOV 10:46Z
    smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().
    cvelistv5