CVE-2025-38653

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2025-08-22

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• linux:linux_kernel

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

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