BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 186s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=15 refcnt=16
pending: 4*nsim_dev_hwstats_traffic_work, vmstat_shepherd, 4*psi_avgs_work, 5*ovs_dp_masks_rebalance, psi_avgs_work
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: nsim_dev_hwstats_traffic_work
workqueue events_highpri: flags=0x10
pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2
pending: fill_page_cache_func
workqueue events_long: flags=0x0
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: 2*defense_work_handler
workqueue events_unbound: flags=0x2
pwq 8: cpus=0-1 flags=0x4 nice=0 active=14 refcnt=15
in-flight: 3001:cfg80211_wiphy_work cfg80211_wiphy_work ,36:cfg80211_wiphy_work cfg80211_wiphy_work ,13:cfg80211_wiphy_work cfg80211_wiphy_work ,782:cfg80211_wiphy_work cfg80211_wiphy_work ,6282:cfg80211_wiphy_work cfg80211_wiphy_work ,3565:cfg80211_wiphy_work cfg80211_wiphy_work ,6283:cfg80211_wiphy_work cfg80211_wiphy_work
pwq 8: cpus=0-1 flags=0x4 nice=0 active=16 refcnt=17
in-flight: 3529:cfg80211_wiphy_work cfg80211_wiphy_work ,12:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn ,3526:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn ,6315:nsim_dev_trap_report_work ,6313:toggle_allocation_gate ,6312:cfg80211_wiphy_work cfg80211_wiphy_work ,6308:cfg80211_wiphy_work cfg80211_wiphy_work
pending: 4*nsim_dev_trap_report_work
workqueue events_freezable: flags=0x4
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: update_balloon_stats_func
workqueue events_power_efficient: flags=0x80
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=13 refcnt=14
pending: wg_ratelimiter_gc_entries, crda_timeout_work, neigh_periodic_work, 2*neigh_managed_work, neigh_periodic_work, do_cache_clean, reg_check_chans_work, 5*check_lifetime
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 5895:gc_worker
workqueue rcu_gp: flags=0x8
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: srcu_invoke_callbacks
workqueue kvfree_rcu_reclaim: flags=0xa
pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
pending: 2*kfree_rcu_monitor
workqueue mm_percpu_wq: flags=0x8
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
workqueue bat_events: flags=0x6000a
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=48
in-flight: 6309:batadv_nc_worker
inactive: 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, 3*batadv_nc_worker, 8*batadv_iv_send_outstanding_bat_ogm_packet, 4*batadv_mcast_mla_update, 5*batadv_purge_orig, 7*batadv_iv_send_outstanding_bat_ogm_packet, batadv_mcast_mla_update, 2*batadv_tt_purge, batadv_nc_worker, 3*batadv_tt_purge
workqueue hci0: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
in-flight: 51:hci_cmd_sync_work
workqueue hci1: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
in-flight: 5852:hci_cmd_sync_work
workqueue hci2: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
in-flight: 5156:hci_cmd_sync_work
workqueue hci3: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
in-flight: 5847:hci_cmd_sync_work
workqueue hci4: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
in-flight: 5849:hci_cmd_sync_work
workqueue wg-kex-wg0: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg0: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg2: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg0: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg2: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
in-flight: 6321:wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x24
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=1s workers=8 idle: 43 5905 24 5941 1211 5942 5896
pool 8: cpus=0-1 flags=0x4 nice=0 hung=1s workers=20 idle: 59 49 6306 6320
pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=8 idle: 6319 5845 5851
Showing backtraces of running workers in stalled CPU-bound worker pools:
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10406 ticks this GP) idle=9a8c/1/0x4000000000000000 softirq=18102/18332 fqs=123
rcu: hardirqs softirqs csw/system
rcu: number: 825392 396 0
rcu: cputime: 31403 4125 322 ==> 35530(ms)
rcu: (t=10500 jiffies g=10849 q=1152 ncpus=2)
rcu: rcu_preempt kthread starved for 357 jiffies! g10849 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26536 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x16f5/0x4d00 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6878
schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2054
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2256
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6297 Comm: syz.3.129 Not tainted 6.15.0-syzkaller-g3713b584dabb #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:perf_trace_lock_acquire+0x358/0x410 include/trace/events/lock.h:24
Code: 24 10 e8 4b 2b 53 00 48 83 c4 10 4c 8b 64 24 20 48 c7 44 24 40 0e 36 e0 45 4b c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 <65> 48 8b 05 d0 39 ff 10 48 3b 84 24 a0 00 00 00 75 28 48 8d 65 d8
RSP: 0018:ffffc90000a06e40 EFLAGS: 00000082
RAX: 0000000000000000 RBX: ffffe8ffffda0010 RCX: 0000000000000002
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a06f40 R08: ffffc90000a06d6f R09: 0000000000000000
R10: ffffc90000a06d60 R11: ffffffffa02019d8 R12: 1ffff92000140dd0
R13: 000000000000000e R14: 000000000000002c R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc238bb6038 CR3: 0000000034254000 CR4: 00000000003526f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__do_trace_lock_acquire include/trace/events/lock.h:24 [inline]
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
__perf_event_output kernel/events/core.c:8429 [inline]
perf_event_output_forward+0xb0/0x430 kernel/events/core.c:8452
__perf_event_overflow+0x7cf/0xe10 kernel/events/core.c:10327
perf_swevent_hrtimer+0x3c5/0x550 kernel/events/core.c:11717
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x4dd/0xc60 kernel/time/hrtimer.c:1825
hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
__sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x11/0x90 kernel/kcov.c:314
Code: cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 14 25 08 c0 9c 92 <65> 8b 0d 88 5a dc 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75
RSP: 0018:ffffc90000a077f8 EFLAGS: 00000246
RAX: ffffffff81c9cc6a RBX: 000000000000002c RCX: ffff888026165a00
RDX: ffff888026165a00 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000002 R09: 0000000000000000
R10: ffffc90000a07720 R11: ffffffffa02019d8 R12: ffffffff8dba2c68
R13: dffffc0000000000 R14: ffffc90000a078a0 R15: 0000000000000001
perf_trace_buf_alloc+0x14a/0x2a0 kernel/trace/trace_event_perf.c:416
do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline]
perf_trace_lock_acquire+0x196/0x410 include/trace/events/lock.h:24
__do_trace_lock_acquire include/trace/events/lock.h:24 [inline]
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
is_module_text_address+0x39/0x1e0 kernel/module/main.c:3731
kernel_text_address+0x94/0xe0 kernel/extable.c:119
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4328 [inline]
__kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340
kmalloc_noprof include/linux/slab.h:909 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
ieee802_11_parse_elems_full+0x152/0x2b20 net/mac80211/parse.c:1013
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2414 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2421 [inline]
ieee80211_inform_bss+0x10c/0x10a0 net/mac80211/scan.c:79
rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
cfg80211_inform_single_bss_data+0xd02/0x1ac0 net/wireless/scan.c:2367
cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222
cfg80211_inform_bss_frame_data+0x362/0x700 net/wireless/scan.c:3317
ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226
ieee80211_scan_rx+0x527/0x9b0 net/mac80211/scan.c:356
__ieee80211_rx_handle_packet net/mac80211/rx.c:5179 [inline]
ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5416
ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5439
ieee80211_rx include/net/mac80211.h:5185 [inline]
ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441
tasklet_action_common+0x36c/0x580 kernel/softirq.c:829
handle_softirqs+0x286/0x870 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kasan_check_range+0x5/0x2c0 mm/kasan/generic.c:188
Code: b6 8d e8 ee 40 e4 ff 90 0f 0b cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 <41> 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d
RSP: 0018:ffffc9000c0cf390 EFLAGS: 00000246
RAX: ffffffff820a8829 RBX: 0000000000000000 RCX: ffffffff820a884d
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001746380
RBP: ffffc9000c0cf650 R08: ffffea00017463b3 R09: 1ffffd40002e8c76
R10: dffffc0000000000 R11: fffff940002e8c77 R12: 00007fb439c00000
R13: dffffc0000000000 R14: ffff888023e32000 R15: ffffea0001746380
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
folio_test_head include/linux/page-flags.h:867 [inline]
folio_test_large include/linux/page-flags.h:888 [inline]
folio_mapcount include/linux/mm.h:1139 [inline]
zap_present_folio_ptes mm/memory.c:1531 [inline]
zap_present_ptes mm/memory.c:1590 [inline]
do_zap_pte_range mm/memory.c:1691 [inline]
zap_pte_range mm/memory.c:1735 [inline]
zap_pmd_range mm/memory.c:1827 [inline]
zap_pud_range mm/memory.c:1856 [inline]
zap_p4d_range mm/memory.c:1877 [inline]
unmap_page_range+0x1ead/0x41c0 mm/memory.c:1898
unmap_single_vma mm/memory.c:1941 [inline]
unmap_vmas+0x399/0x580 mm/memory.c:1985
exit_mmap+0x248/0xb50 mm/mmap.c:1284
__mmput+0x118/0x420 kernel/fork.c:1121
exit_mm+0x1da/0x2c0 kernel/exit.c:581
do_exit+0x640/0x22e0 kernel/exit.c:943
do_group_exit+0x21c/0x2d0 kernel/exit.c:1104
get_signal+0x1286/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111
exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb43af8e929
Code: Unable to access opcode bytes at 0x7fb43af8e8ff.
RSP: 002b:00007fb43bdcd038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffc2 RBX: 00007fb43b1b5fa0 RCX: 00007fb43af8e929
RDX: 000000000000ff4c RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007fb43b010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb43b1b5fa0 R15: 00007ffdec902cc8
CPU: 0 UID: 0 PID: 6267 Comm: syz.4.120 Not tainted 6.15.0-syzkaller-g3713b584dabb #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__read_once_word_nocheck+0x0/0x10 include/asm-generic/rwonce.h:67
Code: e8 b5 63 b1 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 07 e9 98 0c f6 09 cc cc cc cc cc cc cc cc 90 90 90 90 90 90
RSP: 0018:ffffc90000006cd8 EFLAGS: 00000202
RAX: ffffc9000b6afc01 RBX: ffffc9000b6a8000 RCX: 0000000000000001
RDX: ffffc90000006e48 RSI: dffffc0000000000 RDI: ffffc9000b6afc80
RBP: 1ffff92000000dc1 R08: ffffc9000b6afc80 R09: 0000000000000000
R10: ffffc90000006e58 R11: fffff52000000dcd R12: 1ffff92000000dc2
R13: 1ffff92000000dc3 R14: ffffc9000b6b0000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125c54000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2b7c5d CR3: 000000000df38000 CR4: 00000000003526f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
deref_stack_reg+0x19f/0x230 arch/x86/kernel/unwind_orc.c:406
unwind_next_frame+0x17c4/0x2390 arch/x86/kernel/unwind_orc.c:-1
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4328 [inline]
__kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340
kmalloc_noprof include/linux/slab.h:909 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
cfg80211_inform_single_bss_data+0x905/0x1ac0 net/wireless/scan.c:2339
cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222
cfg80211_inform_bss_frame_data+0x362/0x700 net/wireless/scan.c:3317
ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226
ieee80211_scan_rx+0x527/0x9b0 net/mac80211/scan.c:356
__ieee80211_rx_handle_packet net/mac80211/rx.c:5179 [inline]
ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5416
ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5439
ieee80211_rx include/net/mac80211.h:5185 [inline]
ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441
tasklet_action_common+0x36c/0x580 kernel/softirq.c:829
handle_softirqs+0x286/0x870 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 2b 61 5f f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 d3 4a 28 f6 65 8b 05 bc 33 34 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000b6af060 EFLAGS: 00000206
RAX: c4a74fa814db0300 RBX: 0000000000000a02 RCX: c4a74fa814db0300
RDX: 0000000000000007 RSI: ffffffff8d97cf77 RDI: 0000000000000001
RBP: ffffc9000b6af0f0 R08: ffffffff8fa101f7 R09: 1ffffffff1f4203e
R10: dffffc0000000000 R11: fffffbfff1f4203f R12: dffffc0000000000
R13: ffffffff8e144440 R14: ffffffff8e144c40 R15: 1ffff920016d5e0c
rcu_report_exp_rnp kernel/rcu/tree_exp.h:225 [inline]
rcu_preempt_deferred_qs_irqrestore+0x874/0xc40 kernel/rcu/tree_plugin.h:579
rcu_read_unlock_special+0x3fe/0x4c0 kernel/rcu/tree_plugin.h:693
__rcu_read_unlock+0x84/0xe0 kernel/rcu/tree_plugin.h:438
rcu_read_unlock include/linux/rcupdate.h:873 [inline]
pte_unmap include/linux/pgtable.h:136 [inline]
zap_pte_range mm/memory.c:1765 [inline]
zap_pmd_range mm/memory.c:1827 [inline]
zap_pud_range mm/memory.c:1856 [inline]
zap_p4d_range mm/memory.c:1877 [inline]
unmap_page_range+0x38eb/0x41c0 mm/memory.c:1898
unmap_single_vma mm/memory.c:1941 [inline]
unmap_vmas+0x399/0x580 mm/memory.c:1985
exit_mmap+0x248/0xb50 mm/mmap.c:1284
----------------
Code disassembly (best guess):
0: 24 10 and $0x10,%al
2: e8 4b 2b 53 00 call 0x532b52
7: 48 83 c4 10 add $0x10,%rsp
b: 4c 8b 64 24 20 mov 0x20(%rsp),%r12
10: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp)
17: e0 45
19: 4b c7 04 3c 00 00 00 movq $0x0,(%r12,%r15,1)
20: 00
21: 43 c7 44 3c 08 00 00 movl $0x0,0x8(%r12,%r15,1)
28: 00 00
* 2a: 65 48 8b 05 d0 39 ff mov %gs:0x10ff39d0(%rip),%rax # 0x10ff3a02 <-- trapping instruction
31: 10
32: 48 3b 84 24 a0 00 00 cmp 0xa0(%rsp),%rax
39: 00
3a: 75 28 jne 0x64
3c: 48 8d 65 d8 lea -0x28(%rbp),%rsp