Still see this on boot with 5.15.0.40-generic
[ 29.765373] UBSAN: invalid-load in /build/linux-WLUive/linux-5.15.0/net/mac80211/status.c:1164:21 [ 29.765375] load of value 255 is not a valid value for type '_Bool' [ 29.765377] CPU: 4 PID: 1022 Comm: napi/phy0-8197 Tainted: P O 5.15.0-40-generic #43-Ubuntu [ 29.765379] Hardware name: LENOVO 82JQ/LNVNB161216, BIOS GKCN54WW 05/05/2022 [ 29.765381] Call Trace: [ 29.765382] <TASK> [ 29.765383] show_stack+0x52/0x58 [ 29.765387] dump_stack_lvl+0x4a/0x5f [ 29.765392] dump_stack+0x10/0x12 [ 29.765393] ubsan_epilogue+0x9/0x45 [ 29.765395] __ubsan_handle_load_invalid_value.cold+0x44/0x49 [ 29.765397] ieee80211_tx_status_ext.cold+0x4e/0x5f [mac80211] [ 29.765426] mt7921_tx_complete_status+0xac/0xf0 [mt7921e] [ 29.765429] mt7921_mac_tx_free+0x25d/0x430 [mt7921e] [ 29.765432] mt7921_queue_rx_skb+0x5d/0xc0 [mt7921e] [ 29.765435] mt76_dma_rx_process+0x212/0x2d0 [mt76] [ 29.765439] mt76_dma_rx_poll+0x81/0x110 [mt76] [ 29.765442] mt7921_poll_rx+0x4f/0xe0 [mt7921e] [ 29.765445] __napi_poll+0x33/0x180 [ 29.765448] napi_threaded_poll+0x15b/0x170 [ 29.765449] ? __napi_poll+0x180/0x180 [ 29.765450] kthread+0x12a/0x150 [ 29.765454] ? set_kthread_struct+0x50/0x50 [ 29.765456] ret_from_fork+0x22/0x30 [ 29.765459] </TASK>
$ uname -r 5.15.0-40-generic
Still see this on boot with 5.15.0.40-generic
[ 29.765373] UBSAN: invalid-load in /build/ linux-WLUive/ linux-5. 15.0/net/ mac80211/ status. c:1164: 21 0x52/0x58 lvl+0x4a/ 0x5f 0x10/0x12 0x9/0x45 handle_ load_invalid_ value.cold+ 0x44/0x49 tx_status_ ext.cold+ 0x4e/0x5f [mac80211] tx_complete_ status+ 0xac/0xf0 [mt7921e] mac_tx_ free+0x25d/ 0x430 [mt7921e] queue_rx_ skb+0x5d/ 0xc0 [mt7921e] rx_process+ 0x212/0x2d0 [mt76] rx_poll+ 0x81/0x110 [mt76] poll_rx+ 0x4f/0xe0 [mt7921e] poll+0x33/ 0x180 poll+0x15b/ 0x170 poll+0x180/ 0x180 struct+ 0x50/0x50 fork+0x22/ 0x30
[ 29.765375] load of value 255 is not a valid value for type '_Bool'
[ 29.765377] CPU: 4 PID: 1022 Comm: napi/phy0-8197 Tainted: P O 5.15.0-40-generic #43-Ubuntu
[ 29.765379] Hardware name: LENOVO 82JQ/LNVNB161216, BIOS GKCN54WW 05/05/2022
[ 29.765381] Call Trace:
[ 29.765382] <TASK>
[ 29.765383] show_stack+
[ 29.765387] dump_stack_
[ 29.765392] dump_stack+
[ 29.765393] ubsan_epilogue+
[ 29.765395] __ubsan_
[ 29.765397] ieee80211_
[ 29.765426] mt7921_
[ 29.765429] mt7921_
[ 29.765432] mt7921_
[ 29.765435] mt76_dma_
[ 29.765439] mt76_dma_
[ 29.765442] mt7921_
[ 29.765445] __napi_
[ 29.765448] napi_threaded_
[ 29.765449] ? __napi_
[ 29.765450] kthread+0x12a/0x150
[ 29.765454] ? set_kthread_
[ 29.765456] ret_from_
[ 29.765459] </TASK>
$ uname -r
5.15.0-40-generic