The issue reproduced again after updating the kernel. The previous boot terminated with the same kernel panic while using the Broadcom BCM43602 (`brcmfmac`) interface as part of bridge `br0`.
Kernel: `7.0.0-31-generic` The new pstore trace again shows: ``` BUG: kernel NULL pointer dereference ... skb_queue_tail brcmf_flowring_enqueue [brcmfmac] brcmf_msgbuf_tx_queue_data [brcmfmac] brcmf_netdev_start_xmit [brcmfmac] ... br_forward [bridge] ``` followed by: ``` Kernel panic - not syncing: Fatal exception in interrupt ``` This confirms that the issue is still reproducible after the kernel update. I have attached a newly collected pstore log and the kernel log from the crashed boot. ** Attachment added: "brcmfmac-panic-repro-20260908-160532.tar" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2166724/+attachment/5998488/+files/brcmfmac-panic-repro-20260908-160532.tar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2166724 Title: brcmfmac: NULL pointer dereference in brcmf_flowring_enqueue() during bridge forwarding causes kernel panic on BCM43602 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2166724/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
