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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-41063

Bluetooth: hci_core: cancel all works upon hci_unregister_dev()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 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

  • e0b278650f07acf2e0932149183458468a731c03 to < 48542881997e17b49dc16b93fe910e0cfcf7a9f9affected
  • 98fb98fd37e42fd4ce13ff657ea64503e24b6090 to < 9cfc84b1d464cc024286f42a090718f9067b80edaffected
  • 6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2 to < ddeda6ca5f218b668b560d90fc31ae469adbfd92affected
  • da4569d450b193e39e87119fd316c0291b585d14 to < d2ce562a5aff1dcd0c50d9808ea825ef90da909faffected
  • 45085686b9559bfbe3a4f41d3d695a520668f5e1 to < 96600c2e5ee8213dbab5df1617293d8e847bb4faaffected
  • 2ab9a19d896f5a0dd386e1f001c5309bc35f433b to < d6cbce18370641a21dd889e8613d8153df15eb39affected
  • 2449007d3f73b2842c9734f45f0aadb522daf592 to < 3f939bd73fed12dddc2a32a76116c19ca47c7678affected
  • 2449007d3f73b2842c9734f45f0aadb522daf592 to < 0d151a103775dd9645c78c97f77d6e2a5298d913affected
  • dd594cdc24f2e48dab441732e6dfcafd6b0711d1affected
  • 4.19.309 to < 4.19.319affected
  • 5.4.271 to < 5.4.281affected
  • 5.10.212 to < 5.10.223affected
  • 5.15.151 to < 5.15.164affected
  • 6.1.81 to < 6.1.101affected
  • 6.6.21 to < 6.6.42affected
  • 6.7.9 to < 6.8affected

Linux Linux

Default version status: affected

  • 6.8affected
  • 0 to < 6.8unaffected
  • 4.19.319 to ≤ 4.19.*unaffected
  • 5.4.281 to ≤ 5.4.*unaffected
  • 5.10.223 to ≤ 5.10.*unaffected
  • 5.15.164 to ≤ 5.15.*unaffected
  • 6.1.101 to ≤ 6.1.*unaffected
  • 6.6.42 to ≤ 6.6.*unaffected
  • 6.9.11 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References