------------[ cut here ]------------
WARNING: CPU: 1 PID: 28052 at net/mac80211/tx.c:5019 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5019 [inline]
WARNING: CPU: 1 PID: 28052 at net/mac80211/tx.c:5019 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5430
Modules linked in:
CPU: 1 PID: 28052 Comm: syz.7.7474 Not tainted 6.6.93-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5019 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5430
Code: 24 4c 89 e7 e8 ce dd dd f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 19 57 9f f7 0f 0b e9 f6 f7 ff ff e8 0d 57 9f f7 <0f> 0b e9 48 fb ff ff e8 01 57 9f f7 48 c7 c7 e0 28 23 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff89e63fd3 RBX: ffffffff89e62dd6 RCX: ffff888067b00000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888067b00000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888050bee3c0
R13: dffffc0000000000 R14: ffff888050bee8b0 R15: ffff88805c3ac024
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f70ef6a2f98 CR3: 000000000cb30000 CR4: 00000000003506e0
Call Trace:
ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5557
ieee80211_beacon_get include/net/mac80211.h:5438 [inline]
mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2260
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2290
__run_hrtimer kernel/time/hrtimer.c:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:444 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x5a/0xb0 kernel/rcu/tree.c:700
Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 7c ab 6e 00 48 c7 c3 48 6d 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 2f 8b 03 65 ff 0d 91 29 94 7e 74 0c 83 e0 04 c1 e8 02 5b
RSP: 0018:ffffc90004c2f380 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8880b8f36d48 RCX: d6f8a803f21eb200
RDX: 0000000000000000 RSI: ffffffff8afc6760 RDI: ffffffff8afc6720
RBP: ffffc90004c2f4b0 R08: ffffffff8e49a76f R09: 1ffffffff1c934ed
R10: dffffc0000000000 R11: fffffbfff1c934ee R12: ffffffff81e90e0c
R13: dffffc0000000000 R14: ffffffff8c7bda38 R15: dffffc0000000000
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xba/0x8b0 kernel/locking/lockdep.c:5765
ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
zap_pte_range mm/memory.c:1428 [inline]
zap_pmd_range mm/memory.c:1570 [inline]
zap_pud_range mm/memory.c:1599 [inline]
zap_p4d_range mm/memory.c:1620 [inline]
unmap_page_range+0x1ad1/0x2fe0 mm/memory.c:1641
unmap_vmas+0x25e/0x3a0 mm/memory.c:1731
exit_mmap+0x200/0xb50 mm/mmap.c:3292
__mmput+0x118/0x3c0 kernel/fork.c:1355
exit_mm+0x1da/0x2c0 kernel/exit.c:569
do_exit+0x886/0x23c0 kernel/exit.c:861
do_group_exit+0x21b/0x2d0 kernel/exit.c:1023
get_signal+0x12fc/0x1400 kernel/signal.c:2902
arch_do_signal_or_restart+0x96/0x780 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8ce218e929
Code: Unable to access opcode bytes at 0x7f8ce218e8ff.
RSP: 002b:00007f8ce300e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f8ce23b6168 RCX: 00007f8ce218e929
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8ce23b6168
RBP: 00007f8ce23b6160 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8ce23b616c
R13: 0000000000000000 R14: 00007ffdd3627f50 R15: 00007ffdd3628038
----------------
Code disassembly (best guess):
0: f0 48 c1 e8 03 lock shr $0x3,%rax
5: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 7c ab 6e 00 call 0x6eab90
14: 48 c7 c3 48 6d 03 00 mov $0x36d48,%rbx
1b: 49 03 1e add (%r14),%rbx
1e: 48 89 d8 mov %rbx,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 75 2f jne 0x5d
2e: 8b 03 mov (%rbx),%eax
30: 65 ff 0d 91 29 94 7e decl %gs:0x7e942991(%rip) # 0x7e9429c8
37: 74 0c je 0x45
39: 83 e0 04 and $0x4,%eax
3c: c1 e8 02 shr $0x2,%eax
3f: 5b pop %rbx