In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the function to return -EEXIST if queue item already exists. Modify all callsites to handle that.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5 Patch
- https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 2
- References+2 references (now 5)NVD modified 2026-10-21 13:18
- First seenCVSS 5.5 · linuxNVD modified 2026-10-15 11:17
Affected (CPE criteria) 10
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1.120:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.6.51:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.8.9:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
References 5
- https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5 Patch
- https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0 Patch
- https://git.kernel.org/stable/c/5cfa4f537a056c91ac6c09bc3ab58a4455217df7
- https://git.kernel.org/stable/c/799e2e5fbf3f14874b5c6cc289a0dd68b2ca1979
- https://git.kernel.org/stable/c/dfee8da127bafa46530b72347bce3ccae736296d