rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12413/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=56241, q=1928547 ncpus=2)
task:syz.4.985 state:R running task stack:25200 pid:12413 tgid:12412 ppid:6964 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 1a 2b 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000502f580 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000a05ebc RCX: ffff88802c1828d8
RDX: dffffc0000000000 RSI: ffffffff8c0aaa40 RDI: ffffffff8c5fb020
RBP: ffffc9000502f6e0 R08: ffffffff942a4887 R09: 1ffffffff2854910
R10: dffffc0000000000 R11: fffffbfff2854911 R12: 1ffff92000a05eb8
R13: dffffc0000000000 R14: ffffc9000502f5e0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
__reset_page_owner+0x30/0x430 mm/page_owner.c:290
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659
discard_slab mm/slub.c:2688 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3157
put_cpu_partial+0x17c/0x250 mm/slub.c:3232
__slab_free+0x290/0x380 mm/slub.c:4483
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4119 [inline]
slab_alloc_node mm/slub.c:4168 [inline]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175
taskstats_tgid_alloc kernel/taskstats.c:576 [inline]
taskstats_exit+0x360/0xa60 kernel/taskstats.c:615
do_exit+0x9a8/0x28e0 kernel/exit.c:923
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3017
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48c6d85d29
RSP: 002b:00007f48c7b18038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffe7 RBX: 00007f48c6f75fa0 RCX: 00007f48c6d85d29
RDX: 0000000020000180 RSI: 00000000801c581f RDI: 0000000000000000
RBP: 00007f48c6e01aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f48c6f75fa0 R15: 00007f48c709fa28
rcu: rcu_preempt kthread starved for 8012 jiffies! g56241 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:25880 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 81 Comm: kworker/u8:4 Not tainted 6.13.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:addr_has_metadata mm/kasan/kasan.h:333 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:177 [inline]
RIP: 0010:kasan_check_range+0x24/0x290 mm/kasan/generic.c:189
Code: 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02 00 00 <48> 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb
RSP: 0018:ffffc9000159ea40 EFLAGS: 00000012
RAX: 0000000000000001 RBX: 000000000000017d RCX: ffffffff817ac1c4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942a48a8
RBP: ffff88801cb0c780 R08: ffffffff942a48b0 R09: 1ffffffff2854915
R10: dffffc0000000000 R11: fffffbfff2854916 R12: ffff88801cb0c6c4
R13: ffff88801cb0bc00 R14: 0000000000000000 R15: ffff88801cb0c7a0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7866ea56c0 CR3: 000000007af5c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 00000000872c9164 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
__lock_acquire+0xc94/0x2100 kernel/locking/lockdep.c:5196
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
krc_this_cpu_lock kernel/rcu/tree.c:3312 [inline]
add_ptr_to_bulk_krc_lock kernel/rcu/tree.c:3735 [inline]
kvfree_call_rcu+0x18a/0x790 kernel/rcu/tree.c:3821
cfg80211_update_known_bss+0xb45/0x1590 net/wireless/scan.c:1892
__cfg80211_bss_update+0x153/0x2030 net/wireless/scan.c:1939
cfg80211_inform_single_bss_data+0xd82/0x2070 net/wireless/scan.c:2330
cfg80211_inform_bss_data+0x3ce/0x5e80 net/wireless/scan.c:3189
cfg80211_inform_bss_frame_data+0x3bb/0x720 net/wireless/scan.c:3284
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1101 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1969/0x2d70 net/mac80211/ibss.c:1607
ieee80211_iface_process_skb net/mac80211/iface.c:1613 [inline]
ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1667
cfg80211_wiphy_work+0x2db/0x480 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244