| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-48982: Bluetooth: Fix crash when replugging CSR fake controllers |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: Fix crash when replugging CSR fake controllers |
| |
| It seems fake CSR 5.0 clones can cause the suspend notifier to be |
| registered twice causing the following kernel panic: |
| |
| [ 71.986122] Call Trace: |
| [ 71.986124] <TASK> |
| [ 71.986125] blocking_notifier_chain_register+0x33/0x60 |
| [ 71.986130] hci_register_dev+0x316/0x3d0 [bluetooth 99b5497ea3d09708fa1366c1dc03288bf3cca8da] |
| [ 71.986154] btusb_probe+0x979/0xd85 [btusb e1e0605a4f4c01984a4b9c8ac58c3666ae287477] |
| [ 71.986159] ? __pm_runtime_set_status+0x1a9/0x300 |
| [ 71.986162] ? ktime_get_mono_fast_ns+0x3e/0x90 |
| [ 71.986167] usb_probe_interface+0xe3/0x2b0 |
| [ 71.986171] really_probe+0xdb/0x380 |
| [ 71.986174] ? pm_runtime_barrier+0x54/0x90 |
| [ 71.986177] __driver_probe_device+0x78/0x170 |
| [ 71.986180] driver_probe_device+0x1f/0x90 |
| [ 71.986183] __device_attach_driver+0x89/0x110 |
| [ 71.986186] ? driver_allows_async_probing+0x70/0x70 |
| [ 71.986189] bus_for_each_drv+0x8c/0xe0 |
| [ 71.986192] __device_attach+0xb2/0x1e0 |
| [ 71.986195] bus_probe_device+0x92/0xb0 |
| [ 71.986198] device_add+0x422/0x9a0 |
| [ 71.986201] ? sysfs_merge_group+0xd4/0x110 |
| [ 71.986205] usb_set_configuration+0x57a/0x820 |
| [ 71.986208] usb_generic_driver_probe+0x4f/0x70 |
| [ 71.986211] usb_probe_device+0x3a/0x110 |
| [ 71.986213] really_probe+0xdb/0x380 |
| [ 71.986216] ? pm_runtime_barrier+0x54/0x90 |
| [ 71.986219] __driver_probe_device+0x78/0x170 |
| [ 71.986221] driver_probe_device+0x1f/0x90 |
| [ 71.986224] __device_attach_driver+0x89/0x110 |
| [ 71.986227] ? driver_allows_async_probing+0x70/0x70 |
| [ 71.986230] bus_for_each_drv+0x8c/0xe0 |
| [ 71.986232] __device_attach+0xb2/0x1e0 |
| [ 71.986235] bus_probe_device+0x92/0xb0 |
| [ 71.986237] device_add+0x422/0x9a0 |
| [ 71.986239] ? _dev_info+0x7d/0x98 |
| [ 71.986242] ? blake2s_update+0x4c/0xc0 |
| [ 71.986246] usb_new_device.cold+0x148/0x36d |
| [ 71.986250] hub_event+0xa8a/0x1910 |
| [ 71.986255] process_one_work+0x1c4/0x380 |
| [ 71.986259] worker_thread+0x51/0x390 |
| [ 71.986262] ? rescuer_thread+0x3b0/0x3b0 |
| [ 71.986264] kthread+0xdb/0x110 |
| [ 71.986266] ? kthread_complete_and_exit+0x20/0x20 |
| [ 71.986268] ret_from_fork+0x1f/0x30 |
| [ 71.986273] </TASK> |
| [ 71.986274] ---[ end trace 0000000000000000 ]--- |
| [ 71.986284] btusb: probe of 2-1.6:1.0 failed with error -17 |
| |
| The Linux kernel CVE team has assigned CVE-2022-48982 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.10.159 with commit 549b46f8130effccf168293270bb3b1d5da529cc |
| Fixed in 5.15.83 with commit a49894a5ac3656f1a4f0f6b110460060e8026bf8 |
| Fixed in 6.0.13 with commit dc8fa6570deadb70c3fb74d7cd8ce38849feaed0 |
| Fixed in 6.1 with commit b5ca338751ad4783ec8d37b5d99c3e37b7813e59 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2022-48982 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| net/bluetooth/hci_core.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/549b46f8130effccf168293270bb3b1d5da529cc |
| https://git.kernel.org/stable/c/a49894a5ac3656f1a4f0f6b110460060e8026bf8 |
| https://git.kernel.org/stable/c/dc8fa6570deadb70c3fb74d7cd8ce38849feaed0 |
| https://git.kernel.org/stable/c/b5ca338751ad4783ec8d37b5d99c3e37b7813e59 |
