CVE-2025-38461
vsock: Fix transport_* TOCTOU
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.5
References 7
git.kernel.org
- stable/c/8667e8d0eb46bc54fdae30ba2f4786407d3d88eb
- stable/c/36a439049b34cca0b3661276049b84a1f76cc21a
- stable/c/9ce53e744f18e73059d3124070e960f3aa9902bf
- stable/c/9d24bb6780282b0255b9929abe5e8f98007e2c6e
- stable/c/ae2c712ba39c7007de63cb0c75b51ce1caaf1da5
- stable/c/7b73bddf54777fb62d4d8c7729d0affe6df04477
- stable/c/687aa0c5581b8d4aa87fd92973e4ee576b550cdf