===================================================== BUG: KMSAN: uninit-value in ieee80211_ac_from_tid net/mac80211/ieee80211_i.h:2050 [inline] BUG: KMSAN: uninit-value in ieee80211_sta_tx_wmm_ac_notify net/mac80211/mlme.c:2524 [inline] BUG: KMSAN: uninit-value in ieee80211_sta_tx_notify+0x3b1/0x920 net/mac80211/mlme.c:2556 CPU: 1 PID: 27909 Comm: kworker/u4:3 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy33 ieee80211_beacon_connection_loss_work Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 ieee80211_ac_from_tid net/mac80211/ieee80211_i.h:2050 [inline] ieee80211_sta_tx_wmm_ac_notify net/mac80211/mlme.c:2524 [inline] ieee80211_sta_tx_notify+0x3b1/0x920 net/mac80211/mlme.c:2556 ieee80211_tx_status_ext+0x1291/0x4fa0 net/mac80211/status.c:1116 ieee80211_tx_status+0x221/0x270 net/mac80211/status.c:1059 ieee80211_tasklet_handler+0x322/0x390 net/mac80211/main.c:239 tasklet_action_common+0x3de/0x640 kernel/softirq.c:557 tasklet_action+0x30/0x40 kernel/softirq.c:577 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 do_softirq+0x123/0x1c0 kernel/softirq.c:248 __local_bh_enable_ip+0xa1/0xb0 kernel/softirq.c:198 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32 __ieee80211_tx_skb_tid_band+0x28f/0x390 net/mac80211/tx.c:5404 ieee80211_tx_skb_tid net/mac80211/ieee80211_i.h:2019 [inline] ieee80211_tx_skb net/mac80211/ieee80211_i.h:2028 [inline] ieee80211_send_nullfunc+0x59a/0x6e0 net/mac80211/mlme.c:1120 ieee80211_mgd_probe_ap_send+0x88d/0xb30 net/mac80211/mlme.c:2621 ieee80211_mgd_probe_ap+0x52c/0x6e0 net/mac80211/mlme.c:2697 ieee80211_beacon_connection_loss_work+0x19b/0x420 net/mac80211/mlme.c:2830 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 netdev_alloc_skb include/linux/skbuff.h:2864 [inline] dev_alloc_skb include/linux/skbuff.h:2877 [inline] ieee80211_nullfunc_get+0x2b6/0x820 net/mac80211/tx.c:5118 ieee80211_send_nullfunc+0x216/0x6e0 net/mac80211/mlme.c:1102 ieee80211_mgd_probe_ap_send+0x88d/0xb30 net/mac80211/mlme.c:2621 ieee80211_mgd_probe_ap+0x52c/0x6e0 net/mac80211/mlme.c:2697 ieee80211_beacon_connection_loss_work+0x19b/0x420 net/mac80211/mlme.c:2830 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 ===================================================== ===================================================== BUG: KMSAN: uninit-value in ieee80211_ac_from_tid net/mac80211/ieee80211_i.h:2050 [inline] BUG: KMSAN: uninit-value in ieee80211_sta_tx_wmm_ac_notify net/mac80211/mlme.c:2524 [inline] BUG: KMSAN: uninit-value in ieee80211_sta_tx_notify+0x3b1/0x920 net/mac80211/mlme.c:2556 CPU: 1 PID: 1275 Comm: kworker/u4:18 Tainted: G B 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy33 ieee80211_beacon_connection_loss_work Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 ieee80211_ac_from_tid net/mac80211/ieee80211_i.h:2050 [inline] ieee80211_sta_tx_wmm_ac_notify net/mac80211/mlme.c:2524 [inline] ieee80211_sta_tx_notify+0x3b1/0x920 net/mac80211/mlme.c:2556 ieee80211_tx_status_ext+0x1291/0x4fa0 net/mac80211/status.c:1116 ieee80211_tx_status+0x221/0x270 net/mac80211/status.c:1059 ieee80211_tasklet_handler+0x322/0x390 net/mac80211/main.c:239 tasklet_action_common+0x3de/0x640 kernel/softirq.c:557 tasklet_action+0x30/0x40 kernel/softirq.c:577 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 do_softirq+0x123/0x1c0 kernel/softirq.c:248 __local_bh_enable_ip+0xa1/0xb0 kernel/softirq.c:198 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32 __ieee80211_tx_skb_tid_band+0x28f/0x390 net/mac80211/tx.c:5404 ieee80211_tx_skb_tid net/mac80211/ieee80211_i.h:2019 [inline] ieee80211_tx_skb net/mac80211/ieee80211_i.h:2028 [inline] ieee80211_send_nullfunc+0x59a/0x6e0 net/mac80211/mlme.c:1120 ieee80211_mgd_probe_ap_send+0x88d/0xb30 net/mac80211/mlme.c:2621 ieee80211_mgd_probe_ap+0x52c/0x6e0 net/mac80211/mlme.c:2697 ieee80211_beacon_connection_loss_work+0x19b/0x420 net/mac80211/mlme.c:2830 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 netdev_alloc_skb include/linux/skbuff.h:2864 [inline] dev_alloc_skb include/linux/skbuff.h:2877 [inline] ieee80211_nullfunc_get+0x2b6/0x820 net/mac80211/tx.c:5118 ieee80211_send_nullfunc+0x216/0x6e0 net/mac80211/mlme.c:1102 ieee80211_mgd_probe_ap_send+0x88d/0xb30 net/mac80211/mlme.c:2621 ieee80211_mgd_probe_ap+0x52c/0x6e0 net/mac80211/mlme.c:2697 ieee80211_beacon_connection_loss_work+0x19b/0x420 net/mac80211/mlme.c:2830 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 =====================================================