** Changed in: linux-oem-6.11 (Ubuntu)
Status: New => Invalid
** Tags added: jira-somerville-1317
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https://bugs.launchpad.net/bugs/2090890
Title:
Kernel sometimes panics after executing `hcitool inq` [WCN7851
0489:e0f3]
Status in linux package in Ubuntu:
Invalid
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Invalid
Status in linux-oem-6.11 source package in Noble:
Fix Released
Bug description:
[Impact]
On machines with WCN7851 0489:e0f3 BT, kernel sometimes panics after
executing `hcitool inq` with the error message in dmesg:
[ 93.672475] BUG: kernel NULL pointer dereference, address:
0000000000000008
[ 93.672517] Workqueue: hci0 hci_devcd_rx [bluetooth]
[ 93.672598] RIP: 0010:skb_dequeue+0x50/0x80
[Fix]
The upstream fix is still under review:
https://lore.kernel.org/all/[email protected]/T/#u
Out of urgency, we'd apply a sauce patch to the OEM-6.11 now.
[Test Plan]
1. Boot into Ubuntu 6.11-oem kernel
2. Run `hcitool inq` several times and check if there is any error occurred.
[Where problems could occur]
May cause regression related to devcoredump.
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