CVE-2025-38461
Vulnerability Summary
Timeline
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 Metrics
- v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- v3.1•HIGH•Score: 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
EPSS Trends
Current EPSS score: 0.12%• Percentile: 2%
Techniques & Countermeasures
- CWE-367•Time-of-check Time-of-use (TOCTOU) Race Condition
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.
Affected Systems
- debian•linux
< 5.10.244-1 | < 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
- debian•linux-6.1
< 6.1.153-1~deb11u1
- ubuntu•linux
< 5.15.0-156.166 | < 6.8.0-100.100
- ubuntu•linux-allwinner-5.19
all
- ubuntu•linux-aws
< 5.15.0-1092.99 | < 6.8.0-1046.49
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.15
< 5.15.0-1092.99~20.04.1
- ubuntu•linux-aws-5.19
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-6.14
< 6.14.0-1017.17~24.04.1
- ubuntu•linux-aws-6.2
all
- ubuntu•linux-aws-6.5
all
- ubuntu•linux-aws-6.8
< 6.8.0-1046.49~22.04.1
- ubuntu•linux-aws-fips
all | < 5.15.0-1092.99+fips1 | < 6.8.0-1046.49+fips1
- ubuntu•linux-azure
all | < 5.15.0-1096.105 | < 6.8.0-1046.52
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.15
< 5.15.0-1096.105~20.04.1
- ubuntu•linux-azure-5.19
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-6.14
< 6.14.0-1017.17~24.04.1
- ubuntu•linux-azure-6.2
all
- ubuntu•linux-azure-6.5
all
- ubuntu•linux-azure-6.8
< 6.8.0-1051.57~22.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all | all | all | all
- ubuntu•linux-azure-fde-5.19
all
- ubuntu•linux-azure-fde-6.14
all
- ubuntu•linux-azure-fde-6.2
all
- ubuntu•linux-azure-fde-6.8
all
- ubuntu•linux-azure-fips
all | < 5.15.0-1096.105+fips1 | < 6.8.0-1046.52+fips1
- ubuntu•linux-azure-nvidia
all
- ubuntu•linux-azure-nvidia-6.14
all
- ubuntu•linux-bluefield
all | < 5.15.0-1076.78 | < 6.8.0-1016.20
- ubuntu•linux-fips
all | < 5.15.0-156.166+fips1 | < 6.8.0-100.100+fips1
- ubuntu•linux-gcp
all | < 5.15.0-1092.101 | < 6.8.0-1047.50
- ubuntu•linux-gcp-5.11
all
- ubuntu•linux-gcp-5.13
all
- ubuntu•linux-gcp-5.15
< 5.15.0-1092.101~20.04.1
- ubuntu•linux-gcp-5.19
all
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.8
all
- ubuntu•linux-gcp-6.11
all
- ubuntu•linux-gcp-6.14
< 6.14.0-1020.21~24.04.1
- ubuntu•linux-gcp-6.2
all
Showing first 50 affected entries in server-rendered view.
References (51)
- 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
- https://access.redhat.com/errata/RHSA-2025:16373
- https://access.redhat.com/security/updates/classification/#moderate
- https://bugzilla.redhat.com/show_bug.cgi?id=2383513
- https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_16373.json
- https://access.redhat.com/security/cve/CVE-2025-38461
- https://www.cve.org/CVERecord?id=CVE-2025-38461
- https://nvd.nist.gov/vuln/detail/CVE-2025-38461
- https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T
- https://ubuntu.com/security/CVE-2025-38461
- https://git.kernel.org/linus/687aa0c5581b8d4aa87fd92973e4ee576b550cdf
- https://ubuntu.com/security/notices/USN-7774-1
- https://ubuntu.com/security/notices/USN-7774-2
- https://ubuntu.com/security/notices/USN-7774-3
- https://ubuntu.com/security/notices/USN-7775-1
- https://ubuntu.com/security/notices/USN-7776-1
- https://ubuntu.com/security/notices/USN-7775-2
- https://ubuntu.com/security/notices/USN-7775-3
- https://ubuntu.com/security/notices/USN-7774-4
- https://ubuntu.com/security/notices/USN-7774-5
- https://ubuntu.com/security/notices/USN-7879-1
- https://ubuntu.com/security/notices/USN-7879-2
- https://ubuntu.com/security/notices/USN-7880-1
- https://ubuntu.com/security/notices/USN-7879-3
- https://ubuntu.com/security/notices/USN-7879-4
- https://ubuntu.com/security/notices/USN-7934-1
- https://ubuntu.com/security/notices/USN-8028-1
- https://ubuntu.com/security/notices/USN-8028-2
- https://ubuntu.com/security/notices/USN-8031-1
- https://ubuntu.com/security/notices/USN-8028-3
- https://ubuntu.com/security/notices/USN-8028-4
- https://ubuntu.com/security/notices/USN-8028-5
- https://ubuntu.com/security/notices/USN-8031-2
- https://ubuntu.com/security/notices/USN-8028-6
- https://ubuntu.com/security/notices/USN-8031-3
- https://ubuntu.com/security/notices/USN-8052-1
- https://ubuntu.com/security/notices/USN-8028-7
- https://ubuntu.com/security/notices/USN-8028-8
- https://ubuntu.com/security/notices/USN-8052-2
- https://ubuntu.com/security/notices/USN-8074-1
- https://ubuntu.com/security/notices/USN-8074-2
- https://ubuntu.com/security/notices/USN-8126-1
- https://security-tracker.debian.org/tracker/CVE-2025-38461