------------[ cut here ]------------ WARNING: CPU: 1 PID: 6017 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] WARNING: CPU: 1 PID: 6017 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x148c/0x19cc net/mac80211/tx.c:5265 Modules linked in: CPU: 1 PID: 6017 Comm: syz.4.344 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 42400005 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] pc : __ieee80211_beacon_get+0x148c/0x19cc net/mac80211/tx.c:5265 lr : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] lr : __ieee80211_beacon_get+0x148c/0x19cc net/mac80211/tx.c:5265 sp : ffff800008017920 x29: ffff800008017ad0 x28: ffff800008017b3c x27: ffff0000c42d4a58 x26: ffff0000cdbc8ea0 x25: ffff0000d0244a00 x24: ffff0000d8828c80 x23: 0000000000000000 x22: 0000000000000001 x21: ffff700001002f34 x20: ffff0000d882a790 x19: dfff800000000000 x18: ffff800011abbcc0 x17: 00000000ffff0000 x16: ffff8000082d10fc x15: 0000000000000000 x14: 0000000000000007 x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00800011252b54 x10: 0000000000000000 x9 : ffff800011252b54 x8 : ffff0000fb180000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800011251970 x2 : 000000000000000a x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] __ieee80211_beacon_get+0x148c/0x19cc net/mac80211/tx.c:5265 ieee80211_beacon_get_tim+0x68/0x444 net/mac80211/tx.c:5352 ieee80211_beacon_get include/net/mac80211.h:5264 [inline] mac80211_hwsim_beacon_tx+0x1e8/0x914 drivers/net/wireless/mac80211_hwsim.c:2091 __iterate_interfaces+0x204/0x484 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd4/0x180 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xc8/0x1b8 drivers/net/wireless/mac80211_hwsim.c:2147 __run_hrtimer kernel/time/hrtimer.c:1747 [inline] __hrtimer_run_queues+0x44c/0xc64 kernel/time/hrtimer.c:1811 hrtimer_run_softirq+0x160/0x400 kernel/time/hrtimer.c:1828 handle_softirqs+0x318/0xc6c kernel/softirq.c:596 __do_softirq+0x14/0x20 kernel/softirq.c:630 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:477 [inline] __irq_exit_rcu+0x23c/0x43c kernel/softirq.c:679 irq_exit_rcu+0x14/0x84 kernel/softirq.c:691 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] preempt_schedule_irq+0x84/0x1b8 kernel/sched/core.c:6872 arm64_preempt_schedule_irq+0x44/0x58 arch/arm64/kernel/entry-common.c:265 __el1_irq arch/arm64/kernel/entry-common.c:474 [inline] el1_interrupt+0x3c/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] read_seqbegin+0x90/0x15c include/linux/seqlock.h:893 zone_span_seqbegin include/linux/memory_hotplug.h:132 [inline] page_outside_zone_boundaries mm/page_alloc.c:627 [inline] bad_range+0x9c/0x260 mm/page_alloc.c:654 rmqueue mm/page_alloc.c:3887 [inline] get_page_from_freelist+0x1e70/0x1fc0 mm/page_alloc.c:4325 __alloc_pages+0x1cc/0x53c mm/page_alloc.c:5614 __folio_alloc+0x1c/0x44 mm/page_alloc.c:5646 vma_alloc_folio+0x37c/0x8b4 mm/mempolicy.c:2243 shmem_alloc_folio mm/shmem.c:1589 [inline] shmem_alloc_and_acct_folio+0x35c/0x8e4 mm/shmem.c:1613 shmem_get_folio_gfp+0xcb0/0x2040 mm/shmem.c:1941 shmem_get_folio mm/shmem.c:2072 [inline] shmem_write_begin+0xf4/0x46c mm/shmem.c:2556 generic_perform_write+0x230/0x4b0 mm/filemap.c:3846 __generic_file_write_iter+0x168/0x37c mm/filemap.c:3974 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:4006 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x5ac/0x7c4 fs/read_write.c:584 ksys_write+0x120/0x210 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 223241 hardirqs last enabled at (223240): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (223240): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (223241): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (222886): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (222886): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (223165): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---