Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d9ce4de05df2385c19e2c7d12f529144e1a44af1affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 41c8c1c7923e86e0eb59cfb4279349112756a336affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 4ec17782fd186f901a7329605d11048b085b945aaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < be43e6b4043113c3b3cf887c3c8350f67140274caffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 85f8674cae82053f1e6bab295f6a8422cca14db5affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 8b4c412e001b0c670eb937beab491af974da55b3affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a218bf69eb51fefe59a3976fa8925261141f681caffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e83f5e24da741fa9405aeeff00b08c5ee7c37b88affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.259 to ≤ 5.10.*unaffected5.15.210 to ≤ 5.15.*unaffected6.1.176 to ≤ 6.1.*unaffected6.6.142 to ≤ 6.6.*unaffected6.12.92 to ≤ 6.12.*unaffected6.18.34 to ≤ 6.18.*unaffected7.0.11 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1 ↗
- https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336 ↗
- https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a ↗
- https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c ↗
- https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5 ↗
- https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3 ↗
- https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c ↗
- https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗