CVE-2025-40301
- Source
- https://cve.org/CVERecord?id=CVE-2025-40301
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40301.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-40301
- Downstream
- Related
- Published
- 2025-12-08T00:46:24.863Z
- Modified
- 2026-03-20T12:43:15.681181Z
- Summary
- Bluetooth: hci_event: validate skb length for unknown CC opcode
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: validate skb length for unknown CC opcode
In hcicmdcompleteevt(), if the command complete event has an unknown opcode, we assume the first byte of the remaining skb->data contains the return status. However, parameter data has previously been pulled in hcievent_func(), which may leave the skb empty. If so, using skb->data[0] for the return status uses un-init memory.
The fix is to check skb->len before using skb->data.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40301.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50
- https://git.kernel.org/stable/c/5c5f1f64681cc889d9b13e4a61285e9e029d6ab5
- https://git.kernel.org/stable/c/779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8
- https://git.kernel.org/stable/c/cf2c2acec1cf456c3d11c11a7589e886a0f963a9
- https://git.kernel.org/stable/c/fea895de78d3bb2f0c09db9f10b18f8121b15759
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40301.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40301
- 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
-
Introducedafcb3369f46ed5dc883a7b92f2dd1e264d79d388Fixedfea895de78d3bb2f0c09db9f10b18f8121b15759Fixed779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8Fixedcf2c2acec1cf456c3d11c11a7589e886a0f963a9Fixed1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50Fixed5c5f1f64681cc889d9b13e4a61285e9e029d6ab5