Vulnerability details
CVE-2025-38461
Linux Linux
vsock: Fix transport_* TOCTOU
CVSS 3.1
7.0High
Official description
In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer. This also takes care of an insecure call in vsock_use_local_transport(); add a lockdep assert. BUG: unable to handle page fault for address: fffffbfff8056000 Oops: Oops: 0000 [#1] SMP KASAN RIP: 0010:vsock_assign_transport+0x366/0x600 Call Trace: vsock_connect+0x59c/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.0High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 36a439049b34cca0b3661276049b84a1f76cc21a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 9ce53e744f18e73059d3124070e960f3aa9902bf | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 9d24bb6780282b0255b9929abe5e8f98007e2c6e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 8667e8d0eb46bc54fdae30ba2f4786407d3d88eb | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 7b73bddf54777fb62d4d8c7729d0affe6df04477 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < 687aa0c5581b8d4aa87fd92973e4ee576b550cdf | CVEProject cvelistV5 (CNA) |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a ≤ v < ae2c712ba39c7007de63cb0c75b51ce1caaf1da5 | CVEProject cvelistV5 (CNA) |
References and advisories
9- https://git.kernel.org/stable/c/8667e8d0eb46bc54fdae30ba2f4786407d3d88eb
- https://git.kernel.org/stable/c/36a439049b34cca0b3661276049b84a1f76cc21a
- https://git.kernel.org/stable/c/9ce53e744f18e73059d3124070e960f3aa9902bf
- https://git.kernel.org/stable/c/9d24bb6780282b0255b9929abe5e8f98007e2c6e
- https://git.kernel.org/stable/c/ae2c712ba39c7007de63cb0c75b51ce1caaf1da5
- https://git.kernel.org/stable/c/7b73bddf54777fb62d4d8c7729d0affe6df04477
- https://git.kernel.org/stable/c/687aa0c5581b8d4aa87fd92973e4ee576b550cdf
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
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Details
- Published
- 2025-07-25
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.14%
Probability of exploitation in 30 days
3.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- —