watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.3.18:5979] Modules linked in: irq event stamp: 10174299 hardirqs last enabled at (10174298): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (10174299): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (9345284): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (9345284): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (9345284): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (9345287): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (9345287): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (9345287): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 5979 Comm: syz.3.18 Not tainted 6.15.0-syzkaller-g99fe8af069a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:check_preemption_disabled+0x3/0x120 lib/smp_processor_id.c:13 Code: e2 8b 48 c7 c6 e0 87 e2 8b eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 <41> 56 53 48 83 ec 10 65 48 8b 05 fe 9d 36 07 48 89 44 24 08 65 8b RSP: 0018:ffffc90000a08388 EFLAGS: 00000246 RAX: 0000607ed9fe7b68 RBX: ffffffff8e00e240 RCX: 000000008b8bd505 RDX: ffffffff81729de5 RSI: ffffffff8be287e0 RDI: ffffffff8be287a0 RBP: ffffc90000a084a0 R08: ffffc90000a08647 R09: 0000000000000000 R10: ffffc90000a08638 R11: fffff520001410c9 R12: 1ffff9200014107c R13: 000000000000000d R14: ffffffff8e00e1e0 R15: dffffc0000000000 FS: 00007f76eec706c0(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c354a6b CR3: 0000000031770000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0xec/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_node_noprof+0x1bb/0x3c0 mm/slub.c:4249 __alloc_skb+0x112/0x2d0 net/core/skbuff.c:660 alloc_skb include/linux/skbuff.h:1336 [inline] new_skb+0x2f/0x2b0 drivers/block/aoe/aoecmd.c:66 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:430 [inline] aoecmd_cfg+0x28b/0x7c0 drivers/block/aoe/aoecmd.c:1370 call_timer_fn+0x17b/0x5f0 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1798 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:bpf_prog_c8fb1131403bbec5+0x0/0x26 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 40 00 00 00 cc cc cc cc 0f 1e fa 0f 1f 44 00 00 0f 1f 00 55 48 89 e5 f3 0f 1e fa 41 56 RSP: 0018:ffffc90004a1f518 EFLAGS: 00000286 RAX: 1ffff920007cea06 RBX: ffffc90003e75048 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffc90003e75048 RDI: ffffe8ffffda7000 RBP: ffffc90004a1f618 R08: ffffc90004a1f5af R09: 0000000000000000 R10: ffffc90004a1f5a0 R11: ffffffffa0203948 R12: ffffc90003e75030 R13: ffff88807ca1fe98 R14: ffff88807ca1fea8 R15: 0000000000000001 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] percpu_ref_put_many include/linux/percpu-refcount.h:337 [inline] percpu_ref_put+0xf9/0x180 include/linux/percpu-refcount.h:351 css_put include/linux/cgroup_refcnt.h:79 [inline] obj_cgroup_charge_pages+0x6e/0xa0 mm/memcontrol.c:2810 obj_cgroup_charge_account+0xcf/0x660 mm/memcontrol.c:3106 __memcg_slab_post_alloc_hook+0x3e6/0x7f0 mm/memcontrol.c:3192 memcg_slab_post_alloc_hook mm/slub.c:2180 [inline] slab_post_alloc_hook mm/slub.c:4158 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_lru_noprof+0x2c7/0x3d0 mm/slub.c:4216 __d_alloc+0x31/0x6f0 fs/dcache.c:1690 d_alloc_pseudo+0x1f/0xb0 fs/dcache.c:1821 alloc_path_pseudo fs/file_table.c:360 [inline] alloc_file_pseudo+0xcc/0x210 fs/file_table.c:376 __anon_inode_getfile fs/anon_inodes.c:153 [inline] anon_inode_getfile+0xc5/0x1a0 fs/anon_inodes.c:191 bpf_link_prime+0xfc/0x220 kernel/bpf/syscall.c:3319 bpf_raw_tp_link_attach+0x4a5/0x6b0 kernel/bpf/syscall.c:4127 bpf_raw_tracepoint_open+0x19b/0x1f0 kernel/bpf/syscall.c:4164 __sys_bpf+0x3cd/0x860 kernel/bpf/syscall.c:6020 __do_sys_bpf kernel/bpf/syscall.c:6085 [inline] __se_sys_bpf kernel/bpf/syscall.c:6083 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6083 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f76edd8e929 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:00007f76eec70038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f76edfb5fa0 RCX: 00007f76edd8e929 RDX: 0000000000000010 RSI: 00002000000000c0 RDI: 0000000000000011 RBP: 00007f76ede10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f76edfb5fa0 R15: 00007fffdf3afe28 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5968 Comm: syz.4.15 Not tainted 6.15.0-syzkaller-g99fe8af069a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__lock_acquire+0xaa6/0xd20 kernel/locking/lockdep.c:5237 Code: 02 0e 00 75 19 90 48 c7 c7 94 8a b6 8d 48 c7 c6 57 08 a6 8d e8 fb c6 e5 ff 90 0f 0b 90 90 90 31 c0 48 8b 3c 24 48 83 78 40 00 <0f> 84 6a 01 00 00 4c 89 f6 89 ea 4c 89 f9 e8 17 38 00 00 85 c0 0f RSP: 0018:ffffc900000071d0 EFLAGS: 00000086 RAX: ffffffff934588a8 RBX: 0000000000000005 RCX: 0000000004d5d819 RDX: 0000000067d8e508 RSI: 000000008ad92b61 RDI: ffff888030351e00 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81cb84c7 R10: 61625f72656d6974 R11: 6b636f6c2e736573 R12: 00000000b2b24f6e R13: ffff8880303528f0 R14: ffff8880303529b8 R15: b5a4159304d5d819 FS: 00007fe8efa566c0(0000) GS:ffff888125c54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88bfd8fff8 CR3: 000000007669e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] trace_call_bpf+0xd4/0x850 kernel/trace/bpf_trace.c:-1 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x70/0x110 kernel/locking/spinlock.c:194 hrtimer_interrupt+0x616/0xaa0 kernel/time/hrtimer.c:1897 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [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+0x98/0x2c0 mm/kasan/generic.c:189 Code: 03 48 bb 01 00 00 00 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 <4c> 01 fb 41 80 3b 00 0f 85 de 01 00 00 49 ff c3 48 ff c3 75 ee e9 RSP: 0018:ffffc90000007888 EFLAGS: 00000202 RAX: ffffffff86f42501 RBX: e00006dffffff0df RCX: ffffffff86f4252e RDX: 0000000000000001 RSI: 0000000000000007 RDI: ffffc90000007900 RBP: 0000000000000000 R08: ffffc90000007906 R09: 1ffff92000000f20 R10: dffffc0000000000 R11: fffff52000000f20 R12: 0000000000000001 R13: dffffc0000000000 R14: fffff52000000f21 R15: 1ffff92000000f20 __asan_memset+0x22/0x50 mm/kasan/shadow.c:84 mac80211_hwsim_addr_match+0x7e/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:1376 mac80211_hwsim_tx_frame_no_nl+0xcf3/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1876 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2222 mac80211_hwsim_beacon_tx+0x3f0/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2323 __iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x374/0x2390 arch/x86/kernel/unwind_orc.c:505 Code: ea 48 01 d2 48 01 f2 48 bd 00 00 00 00 00 fc ff df 0f 84 37 01 00 00 4c 8d 62 04 4c 8d 6a 05 4c 89 e0 48 c1 e8 03 0f b6 04 28 <84> c0 0f 85 6d 19 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f RSP: 0018:ffffc90003026418 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffffffff900d7820 RCX: ffffffff900d7824 RDX: ffffffff90b5314c RSI: ffffffff90b5314c RDI: ffffffff8be287a0 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff81729de5 R10: ffffc900030261c0 R11: ffffffff81acf670 R12: ffffffff90b53150 R13: ffffffff90b53151 R14: ffffc900030264e8 R15: ffffffff900d7820 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4359 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] ref_tracker_alloc+0x133/0x460 lib/ref_tracker.c:203 __netdev_tracker_alloc include/linux/netdevice.h:4341 [inline] netdev_hold include/linux/netdevice.h:4370 [inline] switchdev_deferred_enqueue+0x111/0x240 net/switchdev/switchdev.c:123 br_set_state+0x356/0x710 net/bridge/br_stp.c:52 new_nbp+0x303/0x440 net/bridge/br_if.c:443 br_add_if+0x28e/0xec0 net/bridge/br_if.c:599 do_set_master+0x530/0x6d0 net/core/rtnetlink.c:2946 do_setlink+0xcf0/0x41c0 net/core/rtnetlink.c:3148 rtnl_setlink+0x604/0x900 net/core/rtnetlink.c:3455 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe8eeb8e929 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:00007fe8efa56038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe8eedb5fa0 RCX: 00007fe8eeb8e929 RDX: 0000000000004014 RSI: 00002000000000c0 RDI: 0000000000000005 RBP: 00007fe8eec10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe8eedb5fa0 R15: 00007ffc3f0457a8