Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: cancel all works upon hci_unregister_dev() syzbot is reporting that calling hci_release_dev() from hci_error_reset() due to hci_dev_put() from hci_error_reset() can cause deadlock at destroy_workqueue(), for hci_error_reset() is called from hdev->req_workqueue which destroy_workqueue() needs to flush. We need to make sure that hdev->{rx_work,cmd_work,tx_work} which are queued into hdev->workqueue and hdev->{power_on,error_reset} which are queued into hdev->req_workqueue are no longer running by the moment destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); are called from hci_release_dev(). Call cancel_work_sync() on these work items from hci_unregister_dev() as soon as hdev->list is removed from hci_dev_list.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e0b278650f07acf2e0932149183458468a731c03 before 48542881997e17b49dc16b93fe910e0cfcf7a9f9; affected 98fb98fd37e42fd4ce13ff657ea64503e24b6090 before 9cfc84b1d464cc024286f42a090718f9067b80ed; affected 6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2 before ddeda6ca5f218b668b560d90fc31ae469adbfd92; affected da4569d450b193e39e87119fd316c0291b585d14 before d2ce562a5aff1dcd0c50d9808ea825ef90da909f; affected 45085686b9559bfbe3a4f41d3d695a520668f5e1 before 96600c2e5ee8213dbab5df1617293d8e847bb4fa; affected 2ab9a19d896f5a0dd386e1f001c5309bc35f433b before d6cbce18370641a21dd889e8613d8153df15eb39; affected 2449007d3f73b2842c9734f45f0aadb522daf592 before 3f939bd73fed12dddc2a32a76116c19ca47c7678; affected 2449007d3f73b2842c9734f45f0aadb522daf592 before 0d151a103775dd9645c78c97f77d6e2a5298d913; affected dd594cdc24f2e48dab441732e6dfcafd6b0711d1; affected 4.19.309 before 4.19.319; affected 5.4.271 before 5.4.281; affected 5.10.212 before 5.10.223; affected 5.15.151 before 5.15.164; affected 6.1.81 before 6.1.101; affected 6.6.21 before 6.6.42; affected 6.7.9 before 6.8 |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 4.19.319 through 4.19.*; unaffected 5.4.281 through 5.4.*; unaffected 5.10.223 through 5.10.*; unaffected 5.15.164 through 5.15.*; unaffected 6.1.101 through 6.1.*; unaffected 6.6.42 through 6.6.*; unaffected 6.9.11 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/48542881997e17b49dc16b93fe910e0cfcf7a9f9
- https://git.kernel.org/stable/c/9cfc84b1d464cc024286f42a090718f9067b80ed
- https://git.kernel.org/stable/c/ddeda6ca5f218b668b560d90fc31ae469adbfd92
- https://git.kernel.org/stable/c/d2ce562a5aff1dcd0c50d9808ea825ef90da909f
- https://git.kernel.org/stable/c/96600c2e5ee8213dbab5df1617293d8e847bb4fa
- https://git.kernel.org/stable/c/d6cbce18370641a21dd889e8613d8153df15eb39
- https://git.kernel.org/stable/c/3f939bd73fed12dddc2a32a76116c19ca47c7678
- https://git.kernel.org/stable/c/0d151a103775dd9645c78c97f77d6e2a5298d913
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/48542881997e17b49dc16b93fe910e0cfcf7a9f9
- https://git.kernel.org/stable/c/9cfc84b1d464cc024286f42a090718f9067b80ed
- https://git.kernel.org/stable/c/ddeda6ca5f218b668b560d90fc31ae469adbfd92
- https://git.kernel.org/stable/c/d2ce562a5aff1dcd0c50d9808ea825ef90da909f
- https://git.kernel.org/stable/c/96600c2e5ee8213dbab5df1617293d8e847bb4fa
- https://git.kernel.org/stable/c/d6cbce18370641a21dd889e8613d8153df15eb39
- https://git.kernel.org/stable/c/3f939bd73fed12dddc2a32a76116c19ca47c7678
- https://git.kernel.org/stable/c/0d151a103775dd9645c78c97f77d6e2a5298d913
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
No English description supplied.
No references supplied.