Vulnerability details
CVE-2025-38653
Linux Linux
proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al
CVSS 3.1
7.8High
Official description
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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.0 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < 33c778ea0bd0fa62ff590497e72562ff90f82b13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < fc1072d934f687e1221d685cf1a49a5068318f34 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < c35b0feb80b48720dfbbf4e33759c7be3faaebb6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < 1fccbfbae1dd36198dc47feac696563244ad81d3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < ff7ec8dc1b646296f8d94c39339e8d3833d16c05 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 ≤ v < d136502e04d8853a9aecb335d07bbefd7a1519a8 | CVEProject cvelistV5 (CNA) |
References and advisories
7- https://git.kernel.org/stable/c/c35b0feb80b48720dfbbf4e33759c7be3faaebb6
- https://git.kernel.org/stable/c/33c778ea0bd0fa62ff590497e72562ff90f82b13
- https://git.kernel.org/stable/c/fc1072d934f687e1221d685cf1a49a5068318f34
- https://git.kernel.org/stable/c/d136502e04d8853a9aecb335d07bbefd7a1519a8
- https://git.kernel.org/stable/c/1fccbfbae1dd36198dc47feac696563244ad81d3
- https://git.kernel.org/stable/c/ff7ec8dc1b646296f8d94c39339e8d3833d16c05
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
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Details
- Published
- 2025-08-22
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
7.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —