** Description changed: [Impact] - On machines with WCN7851 0489:e0f3 BT, kernel sometimes panics after executing `hcitool inq` with the error message in dmesg: + On machines with WCN7851 0489:e0f3 Blutooth, kernel sometimes panics after running `hcitool inq`, with the following error message shown 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. + Due to urgency, we will apply a sauce patch to the OEM-6.11 kernel for + now. ---------------------- Update ---------------------- The upstream fix has been merged into linux 6.15-rc5: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.16-rc1&id=0317b033abcd1d8dd2798f0e2de5e84543d0bd22 We will backport this commit to the Ubuntu OEM 6.14 kernel. - [Test Plan] - 1. Boot into Ubuntu 6.11-oem kernel - 2. Run `hcitool inq` several times and check if there is any error occurred. + 1. Boot into the Ubuntu 6.11-oem kernel + 2. Run `hcitool inq` multiple times + 3. Monitor the system for any kernel errors or panics (e.g. check dmesg for traces). [Where problems could occur] May cause regression related to devcoredump.
** Summary changed: - Kernel sometimes panics after executing `hcitool inq` [WCN7851 0489:e0f3] + Kernel panics occasionally triggered by `hcitool inq` on systems with WCN7851 (0489:e0f3) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2090890 Title: Kernel panics occasionally triggered by `hcitool inq` on systems with WCN7851 (0489:e0f3) Status in linux package in Ubuntu: Invalid Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux-oem-6.14 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.11 source package in Noble: Fix Released Status in linux-oem-6.14 source package in Noble: In Progress Bug description: [Impact] On machines with WCN7851 0489:e0f3 Blutooth, kernel sometimes panics after running `hcitool inq`, with the following error message shown 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 Due to urgency, we will apply a sauce patch to the OEM-6.11 kernel for now. ---------------------- Update ---------------------- The upstream fix has been merged into linux 6.15-rc5: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.16-rc1&id=0317b033abcd1d8dd2798f0e2de5e84543d0bd22 We will backport this commit to the Ubuntu OEM 6.14 kernel. [Test Plan] 1. Boot into the Ubuntu 6.11-oem kernel 2. Run `hcitool inq` multiple times 3. Monitor the system for any kernel errors or panics (e.g. check dmesg for traces). [Where problems could occur] May cause regression related to devcoredump. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2090890/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
