watchdog: BUG: soft lockup - CPU#1 stuck for 116s! [syz.1.74:6196] Modules linked in: irq event stamp: 10059565 hardirqs last enabled at (10059564): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10059565): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10035848): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10035848): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10035848): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (10035851): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10035851): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10035851): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 UID: 0 PID: 6196 Comm: syz.1.74 Not tainted 6.12.0-rc7-syzkaller-g4ff04abf9d5b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:lock_is_held_type+0x52/0x190 kernel/locking/lockdep.c:5890 Code: f2 54 04 00 0f 84 00 01 00 00 65 8b 05 57 1f 3a 74 85 c0 0f 85 f1 00 00 00 65 4c 8b 2c 25 00 d8 03 00 41 83 bd dc 0a 00 00 00 <0f> 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f RSP: 0018:ffffc90000a18ac8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000101 RDX: ffff88802c900000 RSI: 00000000ffffffff RDI: ffffffff8e939de0 RBP: 0000000000000001 R08: ffffffff87089b48 R09: 1ffffffff285ab01 R10: dffffc0000000000 R11: ffffffff8135cae0 R12: ffff88807e4df780 R13: ffff88802c900000 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007f6d107f66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d107d5d58 CR3: 00000000293d8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mac80211_hwsim_beacon_tx+0x461/0x6e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2266 mac80211_hwsim_beacon_tx+0x3bf/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2315 __iterate_interfaces+0x222/0x510 net/mac80211/util.c:774 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:810 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 0e 50 2d f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 b3 13 91 f5 65 8b 05 a4 b1 31 74 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc90004cbf140 EFLAGS: 00000206 RAX: 6c968f13711ab500 RBX: 1ffff92000997e2c RCX: ffffffff8170c9ba RDX: dffffc0000000000 RSI: ffffffff8c0acda0 RDI: 0000000000000001 RBP: ffffc90004cbf1d0 R08: ffffffff942d580f R09: 1ffffffff285ab01 R10: dffffc0000000000 R11: fffffbfff285ab02 R12: dffffc0000000000 R13: 1ffff92000997e28 R14: ffffc90004cbf160 R15: 0000000000000246 stack_depot_save_flags+0x6e4/0x830 lib/stackdepot.c:662 ref_tracker_alloc+0x195/0x490 lib/ref_tracker.c:210 __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7a/0xb0 net/core/dev.c:916 fib6_nh_init+0x1d8/0x2180 net/ipv6/route.c:3543 ip6_route_info_create+0x999/0x12b0 net/ipv6/route.c:3809 ip6_route_add+0x28/0x160 net/ipv6/route.c:3853 addrconf_prefix_route+0x314/0x4e0 net/ipv6/addrconf.c:2486 inet6_addr_add+0x627/0xb00 net/ipv6/addrconf.c:3065 addrconf_add_ifaddr+0x22c/0x340 net/ipv6/addrconf.c:3167 inet6_ioctl+0x146/0x280 net/ipv6/af_inet6.c:582 sock_do_ioctl+0x158/0x460 net/socket.c:1227 sock_ioctl+0x626/0x8e0 net/socket.c:1346 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6d1237e719 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:00007f6d107f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6d12535f80 RCX: 00007f6d1237e719 RDX: 0000000020000000 RSI: 0000000000008916 RDI: 0000000000000006 RBP: 00007f6d123f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6d12535f80 R15: 00007ffc91a370d8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6197 Comm: syz.3.73 Not tainted 6.12.0-rc7-syzkaller-g4ff04abf9d5b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x86/0x290 mm/kasan/generic.c:189 Code: 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 <0f> 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 00 45 89 dc RSP: 0018:ffffc900000073f8 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 1ffffffff285ab01 RCX: ffffffff8170c9ba RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942d5808 RBP: ffffffffffffffff R08: ffffffff942d580f R09: 1ffffffff285ab01 R10: dffffc0000000000 R11: fffffbfff285ab01 R12: ffff88802e4b9e00 R13: dffffc0000000000 R14: dffffc0000000001 R15: fffffbfff285ab02 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558fa065c8 CR3: 0000000062de0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 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] hlock_class kernel/locking/lockdep.c:228 [inline] mark_lock+0x9a/0x360 kernel/locking/lockdep.c:4703 __lock_acquire+0xbf9/0x2050 kernel/locking/lockdep.c:5156 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 seqcount_lockdep_reader_access+0xfc/0x220 include/linux/seqlock.h:72 timekeeping_debug_get_ns kernel/time/timekeeping.c:256 [inline] timekeeping_get_ns+0x5c/0x420 kernel/time/timekeeping.c:401 ktime_get+0x89/0xb0 kernel/time/timekeeping.c:850 clockevents_program_event+0xe6/0x350 kernel/time/clockevents.c:326 hrtimer_interrupt+0x54a/0x990 kernel/time/hrtimer.c:1830 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829 Code: 2b 00 74 08 4c 89 f7 e8 ba 22 8f 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:ffffc90000007a60 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92000000f58 RCX: 3d4310a6a59b7b00 RDX: dffffc0000000000 RSI: ffffffff8c0adf20 RDI: ffffffff8c6114e0 RBP: ffffc90000007ba8 R08: ffffffff942d5887 R09: 1ffffffff285ab10 R10: dffffc0000000000 R11: fffffbfff285ab11 R12: 1ffff92000000f54 R13: dffffc0000000000 R14: ffffc90000007ac0 R15: 0000000000000246 call_timer_fn+0xdd/0x650 kernel/time/timer.c:1791 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_region_inline mm/kasan/generic.c:174 [inline] RIP: 0010:kasan_check_range+0x1b/0x290 mm/kasan/generic.c:189 Code: 90 90 90 90 90 90 90 90 90 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 RSP: 0018:ffffc9000c27f2a8 EFLAGS: 00000202 RAX: ffffffff81e65b01 RBX: 0000000000000000 RCX: ffffffff81e65bf7 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea000193f870 RBP: ffffc9000c27f610 R08: ffffea000193f874 R09: 1ffffd4000327f08 R10: dffffc0000000000 R11: fffff94000327f09 R12: 0000000000000000 R13: 00007f727865f000 R14: ffffea000193f870 R15: dffffc0000000000 instrument_atomic_read include/linux/instrumented.h:68 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline] folio_mapcount+0xa7/0x1e0 include/linux/mm.h:1244 zap_present_folio_ptes mm/memory.c:1522 [inline] zap_present_ptes mm/memory.c:1579 [inline] zap_pte_range mm/memory.c:1621 [inline] zap_pmd_range mm/memory.c:1739 [inline] zap_pud_range mm/memory.c:1768 [inline] zap_p4d_range mm/memory.c:1789 [inline] unmap_page_range+0x1a9a/0x40e0 mm/memory.c:1810 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1900 exit_mmap+0x275/0xc40 mm/mmap.c:1923 __mmput+0x115/0x390 kernel/fork.c:1348 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x28e0 kernel/exit.c:926 do_group_exit+0x207/0x2c0 kernel/exit.c:1088 get_signal+0x16a3/0x1740 kernel/signal.c:2918 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:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f727977e719 Code: Unable to access opcode bytes at 0x7f727977e6ef. RSP: 002b:00007f727a580038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: fffffffffffffe00 RBX: 00007f7279935f80 RCX: 00007f727977e719 RDX: 0000000020000001 RSI: 0000000020000780 RDI: 000000000000000b RBP: 00007f72797f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7279935f80 R15: 00007fffaf6dac48