CVE-2025-38653

EUVD-2025-25549
In the Linux kernel, the following vulnerability has been resolved:

proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al

Check pde->proc_ops->proc_lseek directly may cause UAF in rmmod scenario. 
It's a gap in proc_reg_open() after commit 654b33ada4ab("proc: fix UAF in
proc_get_inode()").  Followed by AI Viro's suggestion, fix it in same
manner.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.0 ≤
𝑥
< 6.1.148
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.102
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.42
linuxlinux_kernel
6.13 ≤
𝑥
< 6.15.10
linuxlinux_kernel
6.16 ≤
𝑥
< 6.16.1
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.162-1
fixed
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.249-1
fixed
forky
6.18.9-1
fixed
sid
6.18.12-1
fixed
trixie
6.12.63-1
fixed
trixie (security)
6.12.73-1
fixed
linux-6.1
bullseye (security)
6.1.162-1~deb11u1
fixed
Common Weakness Enumeration
References
https://git.kernel.org/stable/c/1fccbfbae1dd36198dc47feac696563244ad81d3
https://git.kernel.org/stable/c/33c778ea0bd0fa62ff590497e72562ff90f82b13
https://git.kernel.org/stable/c/c35b0feb80b48720dfbbf4e33759c7be3faaebb6
https://git.kernel.org/stable/c/d136502e04d8853a9aecb335d07bbefd7a1519a8
https://git.kernel.org/stable/c/fc1072d934f687e1221d685cf1a49a5068318f34
https://git.kernel.org/stable/c/ff7ec8dc1b646296f8d94c39339e8d3833d16c05
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html