CVE-2024-41063: Bluetooth: hci_core: cancel all works upon hci_unregister_dev()
First published: Mon Jul 29 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <4.19.319 | |
| Linux Linux kernel | >=4.20<5.4.281 | |
| Linux Linux kernel | >=5.5<5.10.223 | |
| Linux Linux kernel | >=5.11<5.15.164 | |
| Linux Linux kernel | >=5.16<6.1.101 | |
| Linux Linux kernel | >=6.2<6.6.42 | |
| Linux Linux kernel | >=6.7<6.9.11 | |
| Linux Linux kernel | =6.10-rc1 | |
| Linux Linux kernel | =6.10-rc2 | |
| Linux Linux kernel | =6.10-rc3 | |
| Linux Linux kernel | =6.10-rc4 | |
| Linux Linux kernel | =6.10-rc5 | |
| Linux Linux kernel | =6.10-rc6 | |
| redhat/kernel | <4.19.319 | 4.19.319 |
| redhat/kernel | <5.4.281 | 5.4.281 |
| redhat/kernel | <5.10.223 | 5.10.223 |
| redhat/kernel | <5.15.164 | 5.15.164 |
| redhat/kernel | <6.1.101 | 6.1.101 |
| redhat/kernel | <6.6.42 | 6.6.42 |
| redhat/kernel | <6.9.11 | 6.9.11 |
| redhat/kernel | <6.10 | 6.10 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- https://git.kernel.org/stable/c/0d151a103775dd9645c78c97f77d6e2a5298d913
- https://git.kernel.org/stable/c/3f939bd73fed12dddc2a32a76116c19ca47c7678
- https://git.kernel.org/stable/c/48542881997e17b49dc16b93fe910e0cfcf7a9f9
- https://git.kernel.org/stable/c/96600c2e5ee8213dbab5df1617293d8e847bb4fa
- https://git.kernel.org/stable/c/9cfc84b1d464cc024286f42a090718f9067b80ed
- https://git.kernel.org/stable/c/d2ce562a5aff1dcd0c50d9808ea825ef90da909f
- https://git.kernel.org/stable/c/d6cbce18370641a21dd889e8613d8153df15eb39
- https://git.kernel.org/stable/c/ddeda6ca5f218b668b560d90fc31ae469adbfd92
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-41063
- https://nvd.nist.gov/vuln/detail/CVE-2024-41063
- https://launchpad.net/bugs/cve/CVE-2024-41063
- https://security-tracker.debian.org/tracker/CVE-2024-41063
- https://ubuntu.com/security/CVE-2024-41063
- https://git.kernel.org/linus/0d151a103775dd9645c78c97f77d6e2a5298d913
- https://lore.kernel.org/linux-cve-announce/2024072906-CVE-2024-41063-b9bd@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2301603
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2300438
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