------------[ cut here ]------------
WARNING: CPU: 0 PID: 5405 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 5405 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 5405 Comm: syz.1.332 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 01 51 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 f0 50 3a f8 0f 0b e9 3c ef ff ff e8 e4 50 3a f8 <0f> 0b e9 b8 f2 ff ff e8 98 f2 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0000:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893d7b2c RBX: ffff88805f734c80 RCX: ffff88807a9f8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff88807a9f8000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888018fce600
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS: 00007f912d7a26c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffe70 CR3: 00000000229a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
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:__preempt_count_add kernel/rcu/tree.c:1119 [inline]
RIP: 0010:rcu_is_watching+0x2/0xa0 kernel/rcu/tree.c:1122
Code: 1b 48 8d 65 e8 5b 41 5e 41 5f 5d c3 e8 c7 bc 45 08 41 f7 c7 00 02 00 00 75 b8 eb b7 e8 a7 bc 45 08 0f 1f 80 00 00 00 00 41 57 <41> 56 53 65 ff 05 8c be 9e 7e e8 9f cc 45 08 89 c3 83 f8 08 73 5c
RSP: 0000:ffffc90002e8dc88 EFLAGS: 00000202
RAX: ffffffff81aff667 RBX: 0000000000000000 RCX: ffff88807a9f8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ff7c19
R10: fffffbfff1ff7c19 R11: 1ffffffff1ff7c18 R12: dffffc0000000000
R13: ffffc90002e8de00 R14: ffff88807a9f8000 R15: 0000200000625000
rcu_read_unlock include/linux/rcupdate.h:769 [inline]
mm_match_cgroup include/linux/memcontrol.h:892 [inline]
invalid_page_referenced_vma+0x330/0x3f0 mm/rmap.c:842
rmap_walk_file+0x390/0x610 mm/rmap.c:2375
rmap_walk mm/rmap.c:2396 [inline]
page_referenced+0x46a/0x590 mm/rmap.c:896
page_check_references mm/vmscan.c:1243 [inline]
shrink_page_list+0x1084/0x6b60 mm/vmscan.c:1524
shrink_inactive_list mm/vmscan.c:2223 [inline]
shrink_list mm/vmscan.c:2450 [inline]
shrink_lruvec+0x1170/0x24a0 mm/vmscan.c:2769
shrink_node_memcgs mm/vmscan.c:2956 [inline]
shrink_node+0x10a7/0x2610 mm/vmscan.c:3079
shrink_zones mm/vmscan.c:3285 [inline]
do_try_to_free_pages+0x5da/0x15c0 mm/vmscan.c:3340
try_to_free_mem_cgroup_pages+0x2f6/0x780 mm/vmscan.c:3654
try_charge_memcg+0x3de/0x14a0 mm/memcontrol.c:2654
try_charge mm/memcontrol.c:2779 [inline]
charge_memcg+0x100/0x2e0 mm/memcontrol.c:6765
__mem_cgroup_charge+0x21/0x80 mm/memcontrol.c:6801
mem_cgroup_charge include/linux/memcontrol.h:700 [inline]
shmem_add_to_page_cache+0xa83/0x14b0 mm/shmem.c:718
shmem_getpage_gfp+0x1793/0x2d40 mm/shmem.c:1940
shmem_getpage mm/shmem.c:151 [inline]
shmem_write_begin+0xcd/0x1a0 mm/shmem.c:2474
generic_perform_write+0x2aa/0x530 mm/filemap.c:3785
__generic_file_write_iter+0x25f/0x4e0 mm/filemap.c:3912
generic_file_write_iter+0xa6/0x1b0 mm/filemap.c:3944
__kernel_write+0x4f9/0x930 fs/read_write.c:539
__dump_emit+0x243/0x360 fs/coredump.c:943
dump_user_range+0x84/0x340 fs/coredump.c:1017
elf_core_dump+0x2ff7/0x3530 fs/binfmt_elf.c:2285
do_coredump+0x1419/0x2960 fs/coredump.c:894
get_signal+0x40a/0x12c0 kernel/signal.c:2886
arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:320
exc_page_fault+0x88/0x100 arch/x86/mm/fault.c:1504
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f912f55c6d1
Code: 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 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f912f7b3090 RCX: 00007f912f55c6c9
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007f912f5def91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f912f7b3128 R14: 00007f912f7b3090 R15: 00007fff80ccab18
----------------
Code disassembly (best guess):
0: 1b 48 8d sbb -0x73(%rax),%ecx
3: 65 e8 5b 41 5e 41 gs call 0x415e4164
9: 5f pop %rdi
a: 5d pop %rbp
b: c3 ret
c: e8 c7 bc 45 08 call 0x845bcd8
11: 41 f7 c7 00 02 00 00 test $0x200,%r15d
18: 75 b8 jne 0xffffffd2
1a: eb b7 jmp 0xffffffd3
1c: e8 a7 bc 45 08 call 0x845bcc8
21: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
28: 41 57 push %r15
* 2a: 41 56 push %r14 <-- trapping instruction
2c: 53 push %rbx
2d: 65 ff 05 8c be 9e 7e incl %gs:0x7e9ebe8c(%rip) # 0x7e9ebec0
34: e8 9f cc 45 08 call 0x845ccd8
39: 89 c3 mov %eax,%ebx
3b: 83 f8 08 cmp $0x8,%eax
3e: 73 5c jae 0x9c