------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.179-syzkaller #0 Not tainted
------------------------------------------------------
syz.1.7/4260 is trying to acquire lock:
ffffffff8c9fbd38 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
but task is already holding lock:
ffff8880b8e2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
ffff8880b8e2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1752
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (hrtimer_bases.lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
lock_hrtimer_base kernel/time/hrtimer.c:173 [inline]
hrtimer_start_range_ns+0x105/0xc80 kernel/time/hrtimer.c:1299
hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
do_start_rt_bandwidth kernel/sched/rt.c:69 [inline]
start_rt_bandwidth kernel/sched/rt.c:80 [inline]
inc_rt_group kernel/sched/rt.c:1207 [inline]
inc_rt_tasks kernel/sched/rt.c:1251 [inline]
__enqueue_rt_entity kernel/sched/rt.c:1321 [inline]
enqueue_rt_entity kernel/sched/rt.c:1368 [inline]
enqueue_task_rt+0x5a0/0xbf0 kernel/sched/rt.c:1398
enqueue_task+0x19d/0x2e0 kernel/sched/core.c:1976
__sched_setscheduler+0x1396/0x1db0 kernel/sched/core.c:7550
_sched_setscheduler kernel/sched/core.c:7597 [inline]
sched_setscheduler_nocheck kernel/sched/core.c:7644 [inline]
sched_set_fifo+0x10e/0x1e0 kernel/sched/core.c:7668
drm_vblank_worker_init+0x149/0x190 drivers/gpu/drm/drm_vblank_work.c:263
drm_vblank_init+0x274/0x330 drivers/gpu/drm/drm_vblank.c:551
vkms_create drivers/gpu/drm/vkms/vkms_drv.c:195 [inline]
vkms_init+0x330/0x6d0 drivers/gpu/drm/vkms/vkms_drv.c:235
do_one_initcall+0x22b/0x7a0 init/main.c:1302
do_initcall_level+0x157/0x210 init/main.c:1375
do_initcalls+0x49/0x90 init/main.c:1391
kernel_init_freeable+0x425/0x5c0 init/main.c:1615
kernel_init+0x19/0x290 init/main.c:1506
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #3 (&rt_b->rt_runtime_lock){-...}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
__enable_runtime kernel/sched/rt.c:840 [inline]
rq_online_rt+0x123/0x300 kernel/sched/rt.c:2331
set_rq_online kernel/sched/core.c:9036 [inline]
sched_cpu_activate+0x508/0x6b0 kernel/sched/core.c:9156
cpuhp_invoke_callback+0x49f/0x820 kernel/cpu.c:191
cpuhp_thread_fun+0x3ee/0x790 kernel/cpu.c:822
smpboot_thread_fn+0x51b/0x9d0 kernel/smpboot.c:164
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #2 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
rq_lock kernel/sched/sched.h:1621 [inline]
task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11499
sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4465
copy_process+0x224a/0x3ef0 kernel/fork.c:2319
kernel_clone+0x210/0x960 kernel/fork.c:2603
kernel_thread+0x12e/0x1a0 kernel/fork.c:2655
rest_init+0x21/0x330 init/main.c:706
start_kernel+0x48c/0x540 init/main.c:1140
secondary_startup_64_no_verify+0xb1/0xbb
-> #1 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xae/0x12c0 kernel/sched/core.c:4029
up+0x6e/0x90 kernel/locking/semaphore.c:190
__up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:256
console_unlock+0x1145/0x12b0 kernel/printk/printk.c:2760
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
dev_vprintk_emit+0x2aa/0x330 drivers/base/core.c:4638
dev_printk_emit+0xd9/0x120 drivers/base/core.c:4649
_dev_warn+0x11e/0x170 drivers/base/core.c:4705
firmware_fallback_sysfs+0x681/0xc90 drivers/base/firmware_loader/fallback.c:654
_request_firmware+0xc72/0x12c0 drivers/base/firmware_loader/main.c:876
request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1127
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #0 ((console_sem).lock){-.-.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
console_trylock kernel/printk/printk.c:2575 [inline]
console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
copy_from_user_nofault+0x15c/0x1c0
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_63d51858d7cca270+0x3d/0x124
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1705 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
unwind_next_frame+0x130c/0x1fa0 arch/x86/kernel/unwind_orc.c:608
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
skb_copy+0x127/0x820 net/core/skbuff.c:1595
mac80211_hwsim_tx_frame_no_nl+0xe37/0x1840 drivers/net/wireless/mac80211_hwsim.c:1569
mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/mac80211_hwsim.c:1788
mac80211_hwsim_beacon_tx+0x48f/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1842
__iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
get_stack_info_noinstr+0x3/0x130 arch/x86/kernel/dumpstack_64.c:172
get_stack_info+0x37/0xf0 arch/x86/kernel/dumpstack_64.c:199
__unwind_start+0x437/0x720 arch/x86/kernel/unwind_orc.c:673
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:119
__set_page_owner+0x37/0x300 mm/page_owner.c:181
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x3b78/0x3d40 mm/page_alloc.c:4192
__alloc_pages+0x272/0x700 mm/page_alloc.c:5466
vm_area_alloc_pages mm/vmalloc.c:2869 [inline]
__vmalloc_area_node mm/vmalloc.c:2925 [inline]
__vmalloc_node_range+0x5ab/0x8c0 mm/vmalloc.c:3030
__bpf_map_area_alloc kernel/bpf/syscall.c:326 [inline]
bpf_map_area_alloc+0xe0/0xf0 kernel/bpf/syscall.c:333
htab_map_alloc+0x39e/0x15a0 kernel/bpf/hashtab.c:531
find_and_alloc_map kernel/bpf/syscall.c:127 [inline]
map_create+0x446/0x2070 kernel/bpf/syscall.c:877
__sys_bpf+0x276/0x670 kernel/bpf/syscall.c:4630
__do_sys_bpf kernel/bpf/syscall.c:4752 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4750 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4750
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rt_b->rt_runtime_lock --> hrtimer_bases.lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(hrtimer_bases.lock);
lock(&rt_b->rt_runtime_lock);
lock(hrtimer_bases.lock);
lock((console_sem).lock);
*** DEADLOCK ***
4 locks held by syz.1.7/4260:
#0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#1: ffffffff8d54c858 (hwsim_radio_lock){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:363 [inline]
#1: ffffffff8d54c858 (hwsim_radio_lock){+.-.}-{2:2}, at: mac80211_hwsim_tx_frame_no_nl+0x6f7/0x1840 drivers/net/wireless/mac80211_hwsim.c:1520
#2: ffff8880b8e2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
#2: ffff8880b8e2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1752
#3: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
stack backtrace:
CPU: 0 PID: 4260 Comm: syz.1.7 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
console_trylock kernel/printk/printk.c:2575 [inline]
console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 9b b0 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 84 b0 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000006e50 EFLAGS: 00010006
RAX: ffffffff81aaec3c RBX: 0000000000000000 RCX: ffff888027621dc0
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaeb4d R09: ffffed1004ec43b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000006ec8
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_63d51858d7cca270+0x3d/0x124
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1705 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:unwind_next_frame+0x130c/0x1fa0 arch/x86/kernel/unwind_orc.c:608
Code: 49 8d 57 40 4c 89 ff 4c 89 c6 e8 af 0c 00 00 84 c0 48 ba 00 00 00 00 00 fc ff df 0f 84 8f 03 00 00 48 8b 44 24 38 0f b6 04 10 <84> c0 0f 85 03 08 00 00 8b 44 24 74 41 39 07 48 8b 7c 24 40 0f 85
RSP: 0018:ffffc90000007348 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff8e884f6e RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffc900032bfdb0 RDI: ffffc900032bfdb0
RBP: ffffffff8e884f70 R08: ffffc900032bfdb0 R09: ffffc90000007450
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d109ee
R13: 1ffffffff1d109ee R14: ffffffff8e884f6f R15: ffffc90000007400
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
skb_copy+0x127/0x820 net/core/skbuff.c:1595
mac80211_hwsim_tx_frame_no_nl+0xe37/0x1840 drivers/net/wireless/mac80211_hwsim.c:1569
mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/mac80211_hwsim.c:1788
mac80211_hwsim_beacon_tx+0x48f/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1842
__iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:get_stack_info_noinstr+0x3/0x130 arch/x86/kernel/dumpstack_64.c:172
Code: 33 e0 0d f7 5c 48 c7 c7 c0 76 a5 8a e8 56 3a 00 00 65 c6 05 0e 96 c2 75 00 eb 9b cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 <41> 56 41 54 53 49 89 d4 48 89 f3 48 89 fd e8 1a 01 00 00 41 b6 01
RSP: 0018:ffffc900032bf3d0 EFLAGS: 00000282
RAX: 1ffff92000657e97 RBX: ffffc900032bf480 RCX: ffffc900032bf4a0
RDX: ffffc900032bf480 RSI: ffff888027621dc0 RDI: ffffc900032bf420
RBP: ffff888027621dc0 R08: dffffc0000000000 R09: ffffc900032bf480
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900032bf4a0
R13: ffffc900032bf4a8 R14: ffffc900032bf4a0 R15: 1ffff92000657e95
get_stack_info+0x37/0xf0 arch/x86/kernel/dumpstack_64.c:199
__unwind_start+0x437/0x720 arch/x86/kernel/unwind_orc.c:673
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:119
__set_page_owner+0x37/0x300 mm/page_owner.c:181
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x3b78/0x3d40 mm/page_alloc.c:4192
__alloc_pages+0x272/0x700 mm/page_alloc.c:5466
vm_area_alloc_pages mm/vmalloc.c:2869 [inline]
__vmalloc_area_node mm/vmalloc.c:2925 [inline]
__vmalloc_node_range+0x5ab/0x8c0 mm/vmalloc.c:3030
__bpf_map_area_alloc kernel/bpf/syscall.c:326 [inline]
bpf_map_area_alloc+0xe0/0xf0 kernel/bpf/syscall.c:333
htab_map_alloc+0x39e/0x15a0 kernel/bpf/hashtab.c:531
find_and_alloc_map kernel/bpf/syscall.c:127 [inline]
map_create+0x446/0x2070 kernel/bpf/syscall.c:877
__sys_bpf+0x276/0x670 kernel/bpf/syscall.c:4630
__do_sys_bpf kernel/bpf/syscall.c:4752 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4750 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4750
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f74f4309169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74f2172038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f74f4521fa0 RCX: 00007f74f4309169
RDX: 0000000000000050 RSI: 0000200000000440 RDI: 0000000000000000
RBP: 00007f74f438a2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f74f4521fa0 R15: 00007ffcf15873a8
WARNING: CPU: 0 PID: 4260 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 0 PID: 4260 Comm: syz.1.7 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 9b b0 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 84 b0 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000006e50 EFLAGS: 00010006
RAX: ffffffff81aaec3c RBX: 0000000000000000 RCX: ffff888027621dc0
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaeb4d R09: ffffed1004ec43b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000006ec8
FS: 00007f74f21726c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572fe6808 CR3: 000000005e924000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_63d51858d7cca270+0x3d/0x124
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1705 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:unwind_next_frame+0x130c/0x1fa0 arch/x86/kernel/unwind_orc.c:608
Code: 49 8d 57 40 4c 89 ff 4c 89 c6 e8 af 0c 00 00 84 c0 48 ba 00 00 00 00 00 fc ff df 0f 84 8f 03 00 00 48 8b 44 24 38 0f b6 04 10 <84> c0 0f 85 03 08 00 00 8b 44 24 74 41 39 07 48 8b 7c 24 40 0f 85
RSP: 0018:ffffc90000007348 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff8e884f6e RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffc900032bfdb0 RDI: ffffc900032bfdb0
RBP: ffffffff8e884f70 R08: ffffc900032bfdb0 R09: ffffc90000007450
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d109ee
R13: 1ffffffff1d109ee R14: ffffffff8e884f6f R15: ffffc90000007400
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
skb_copy+0x127/0x820 net/core/skbuff.c:1595
mac80211_hwsim_tx_frame_no_nl+0xe37/0x1840 drivers/net/wireless/mac80211_hwsim.c:1569
mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/mac80211_hwsim.c:1788
mac80211_hwsim_beacon_tx+0x48f/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1842
__iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:get_stack_info_noinstr+0x3/0x130 arch/x86/kernel/dumpstack_64.c:172
Code: 33 e0 0d f7 5c 48 c7 c7 c0 76 a5 8a e8 56 3a 00 00 65 c6 05 0e 96 c2 75 00 eb 9b cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 <41> 56 41 54 53 49 89 d4 48 89 f3 48 89 fd e8 1a 01 00 00 41 b6 01
RSP: 0018:ffffc900032bf3d0 EFLAGS: 00000282
RAX: 1ffff92000657e97 RBX: ffffc900032bf480 RCX: ffffc900032bf4a0
RDX: ffffc900032bf480 RSI: ffff888027621dc0 RDI: ffffc900032bf420
RBP: ffff888027621dc0 R08: dffffc0000000000 R09: ffffc900032bf480
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900032bf4a0
R13: ffffc900032bf4a8 R14: ffffc900032bf4a0 R15: 1ffff92000657e95
get_stack_info+0x37/0xf0 arch/x86/kernel/dumpstack_64.c:199
__unwind_start+0x437/0x720 arch/x86/kernel/unwind_orc.c:673
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:119
__set_page_owner+0x37/0x300 mm/page_owner.c:181
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x3b78/0x3d40 mm/page_alloc.c:4192
__alloc_pages+0x272/0x700 mm/page_alloc.c:5466
vm_area_alloc_pages mm/vmalloc.c:2869 [inline]
__vmalloc_area_node mm/vmalloc.c:2925 [inline]
__vmalloc_node_range+0x5ab/0x8c0 mm/vmalloc.c:3030
__bpf_map_area_alloc kernel/bpf/syscall.c:326 [inline]
bpf_map_area_alloc+0xe0/0xf0 kernel/bpf/syscall.c:333
htab_map_alloc+0x39e/0x15a0 kernel/bpf/hashtab.c:531
find_and_alloc_map kernel/bpf/syscall.c:127 [inline]
map_create+0x446/0x2070 kernel/bpf/syscall.c:877
__sys_bpf+0x276/0x670 kernel/bpf/syscall.c:4630
__do_sys_bpf kernel/bpf/syscall.c:4752 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4750 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4750
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f74f4309169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74f2172038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f74f4521fa0 RCX: 00007f74f4309169
RDX: 0000000000000050 RSI: 0000200000000440 RDI: 0000000000000000
RBP: 00007f74f438a2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f74f4521fa0 R15: 00007ffcf15873a8
----------------
Code disassembly (best guess):
0: 49 8d 57 40 lea 0x40(%r15),%rdx
4: 4c 89 ff mov %r15,%rdi
7: 4c 89 c6 mov %r8,%rsi
a: e8 af 0c 00 00 call 0xcbe
f: 84 c0 test %al,%al
11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
18: fc ff df
1b: 0f 84 8f 03 00 00 je 0x3b0
21: 48 8b 44 24 38 mov 0x38(%rsp),%rax
26: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 0f 85 03 08 00 00 jne 0x835
32: 8b 44 24 74 mov 0x74(%rsp),%eax
36: 41 39 07 cmp %eax,(%r15)
39: 48 8b 7c 24 40 mov 0x40(%rsp),%rdi
3e: 0f .byte 0xf
3f: 85 .byte 0x85