Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate skb length for unknown CC opcode In hci_cmd_complete_evt(), 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 hci_event_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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected afcb3369f46ed5dc883a7b92f2dd1e264d79d388 before fea895de78d3bb2f0c09db9f10b18f8121b15759; affected afcb3369f46ed5dc883a7b92f2dd1e264d79d388 before 779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8; affected afcb3369f46ed5dc883a7b92f2dd1e264d79d388 before cf2c2acec1cf456c3d11c11a7589e886a0f963a9; affected afcb3369f46ed5dc883a7b92f2dd1e264d79d388 before 1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50; affected afcb3369f46ed5dc883a7b92f2dd1e264d79d388 before 5c5f1f64681cc889d9b13e4a61285e9e029d6ab5 |
| Linux / Linux | affected 6.1; unaffected 0 before 6.1; unaffected 6.1.159 through 6.1.*; unaffected 6.6.117 through 6.6.*; unaffected 6.12.58 through 6.12.*; unaffected 6.17.8 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fea895de78d3bb2f0c09db9f10b18f8121b15759
- https://git.kernel.org/stable/c/779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8
- https://git.kernel.org/stable/c/cf2c2acec1cf456c3d11c11a7589e886a0f963a9
- https://git.kernel.org/stable/c/1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50
- https://git.kernel.org/stable/c/5c5f1f64681cc889d9b13e4a61285e9e029d6ab5