CVE-2025-39718
- Source
- https://cve.org/CVERecord?id=CVE-2025-39718
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39718.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39718
- Downstream
- Related
- Published
- 2025-09-05T17:21:25.959Z
- Modified
- 2026-05-07T04:15:40.002611Z
- Summary
- vsock/virtio: Validate length in packet header before skb_put()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: Validate length in packet header before skb_put()
When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtiovsockskbrxput(). Unfortunately, virtiovsockskbrxput() uses the length from the packet header as the length argument to skb_put(), potentially resulting in SKB overflow if the host has gone wonky.
Validate the length as advertised by the packet header before calling virtiovsockskbrxput().
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39718.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0dab92484474587b82e8e0455839eaf5ac7bf894
- https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c
- https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05
- https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f
- https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39718.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39718
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbaddcc2c71572968cdaeee1c4ab3dc0ad90fa765Fixed969b06bd8b7560efb100a34227619e7d318fbe05
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced71dc9ec9ac7d3eee785cdc986c3daeb821381e20Fixedee438c492b2e0705d819ac0e25d04fae758d8f8fFixedfaf332a10372390ce65d0b803888f4b25a388335Fixed676f03760ca1d69c2470cef36c44dc152494b47cFixed0dab92484474587b82e8e0455839eaf5ac7bf894
Linux / Kernel
Package
- Name
- Kernel