watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.3.19:5989] Modules linked in: irq event stamp: 11213919 hardirqs last enabled at (11213918): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (11213919): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (125120): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (125120): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (125120): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (125123): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (125123): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (125123): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 5989 Comm: syz.3.19 Not tainted 6.15.0-syzkaller-gcd7312a78f36 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:bpf_prog_inc_misses_counters include/linux/bpf.h:3303 [inline] RIP: 0010:trace_call_bpf+0x767/0x850 kernel/trace/bpf_trace.c:124 Code: f4 ff 85 db 0f 84 9e 00 00 00 e8 f4 d5 f4 ff eb 05 e8 ed d5 f4 ff 4d 85 ff 0f 84 e8 00 00 00 49 8d 5f 10 48 89 d8 48 c1 e8 03 <48> b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 c1 a3 RSP: 0018:ffffc90000a07900 EFLAGS: 00000a06 RAX: 1ffff1100eae4d22 RBX: ffff888075726910 RCX: ffff88802f4d5a00 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000a079f8 R08: 0000000000000000 R09: ffffffff81cb84c7 R10: dffffc0000000000 R11: fffff91ffffb0405 R12: 0000000000000001 R13: 1ffff92000140f2c R14: ffffffff81cb84c7 R15: ffff888075726900 FS: 00007f11bd2bb6c0(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b309f7ff8 CR3: 0000000075542000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 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 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x18f/0x400 mm/slub.c:4745 skb_release_data+0x62d/0x7c0 net/core/skbuff.c:1087 skb_release_all net/core/skbuff.c:1152 [inline] __kfree_skb net/core/skbuff.c:1166 [inline] consume_skb+0x9e/0xf0 net/core/skbuff.c:1398 geneve_xmit+0x20d2/0x2b70 drivers/net/geneve.c:1053 __netdev_start_xmit include/linux/netdevice.h:5215 [inline] netdev_start_xmit include/linux/netdevice.h:5224 [inline] xmit_one net/core/dev.c:3830 [inline] dev_hard_start_xmit+0x2d7/0x830 net/core/dev.c:3846 __dev_queue_xmit+0x1adf/0x3a70 net/core/dev.c:4713 dev_queue_xmit include/linux/netdevice.h:3355 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x11bc/0x16a0 net/ipv6/ip6_output.c:141 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline] ip6_finish_output+0x234/0x7d0 net/ipv6/ip6_output.c:226 NF_HOOK include/linux/netfilter.h:317 [inline] ndisc_send_skb+0xb47/0x1400 net/ipv6/ndisc.c:513 addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4041 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:check_preemption_disabled+0x1/0x120 lib/smp_processor_id.c:13 Code: a0 87 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 RSP: 0018:ffffc900050e73c0 EFLAGS: 00000282 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff88802f4d5a00 RDX: ffff88802f4d5a00 RSI: ffffffff8be287e0 RDI: ffffffff8be287a0 RBP: ffffc900050e74f8 R08: ffffc900050e748f R09: 0000000000000000 R10: ffffc900050e7480 R11: fffff52000a1ce92 R12: 0000000000000001 R13: ffffc900050e7480 R14: ffff888075726900 R15: ffffffff8e00e108 rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:745 rcu_read_lock_held_common kernel/rcu/update.c:109 [inline] rcu_read_lock_held+0x15/0x50 kernel/rcu/update.c:349 bpf_prog_run_array include/linux/bpf.h:2223 [inline] trace_call_bpf+0x1f4/0x850 kernel/trace/bpf_trace.c:146 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 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] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_node_noprof+0x276/0x4e0 mm/slub.c:4334 kmalloc_node_noprof include/linux/slab.h:932 [inline] __bpf_map_area_alloc kernel/bpf/syscall.c:391 [inline] bpf_map_area_alloc+0x64/0x180 kernel/bpf/syscall.c:404 bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:120 [inline] bpf_ringbuf_alloc+0x31/0x590 kernel/bpf/ringbuf.c:173 ringbuf_map_alloc+0x1c8/0x2f0 kernel/bpf/ringbuf.c:208 map_create+0x900/0x1150 kernel/bpf/syscall.c:1477 __sys_bpf+0x67e/0x860 kernel/bpf/syscall.c:5960 __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: 0033:0x7f11bc38e929 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:00007f11bd2bb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f11bc5b5fa0 RCX: 00007f11bc38e929 RDX: 0000000000000048 RSI: 00002000000000c0 RDI: 0000000000000000 RBP: 00007f11bc410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f11bc5b5fa0 R15: 00007ffcf64e54d8 Sending NMI from CPU 1 to CPUs 0: ------------[ cut here ]------------ NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5988 Comm: syz.4.20 Not tainted 6.15.0-syzkaller-gcd7312a78f36 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:get_data+0x3ff/0x860 kernel/printk/printk_ringbuffer.c:-1 Code: 17 13 82 00 49 8b 2f 49 c7 c4 ff ff ff ff 89 d9 49 d3 e4 49 f7 d4 49 21 ec 48 bb 00 00 00 00 00 fc ff df 4c 89 ed 48 c1 ed 03 <0f> b6 44 1d 00 84 c0 0f 85 6b 02 00 00 45 89 65 00 48 8b 44 24 18 RSP: 0018:ffffc90000007220 EFLAGS: 00000802 RAX: 1ffff92000000e6d RBX: dffffc0000000000 RCX: 0000000000000012 RDX: 0000000000000100 RSI: 0000000000000012 RDI: 0000000000000040 RBP: 1ffff92000000e67 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000038 R13: ffffc90000007338 R14: ffffc90000007368 R15: ffffc90000007370 FS: 00007f20292116c0(0000) GS:ffff888125c54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a3b055990 CR3: 000000007de12000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_data kernel/printk/printk_ringbuffer.c:1827 [inline] prb_read kernel/printk/printk_ringbuffer.c:1936 [inline] _prb_read_valid+0x672/0xa90 kernel/printk/printk_ringbuffer.c:2113 prb_read_valid+0x3c/0x60 kernel/printk/printk_ringbuffer.c:2185 printk_get_next_message+0x15c/0x7b0 kernel/printk/printk.c:3005 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x4ca/0xc40 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xc4/0x270 kernel/printk/printk.c:3325 vprintk_emit+0x5b7/0x7a0 kernel/printk/printk.c:2450 _printk+0xcf/0x120 kernel/printk/printk.c:2475 __report_bug lib/bug.c:191 [inline] report_bug+0x34e/0x4f0 lib/bug.c:215 handle_bug+0x84/0x160 arch/x86/kernel/traps.c:338 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:392 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621 RIP: 0010:rcu_check_gp_start_stall+0x2e4/0x470 kernel/rcu/tree_stall.h:989 Code: ff ff 48 c7 c7 20 44 ac 99 be 04 00 00 00 e8 43 78 7c 00 4c 89 f7 b8 01 00 00 00 87 05 65 8a 04 18 85 c0 0f 85 17 ff ff ff 90 <0f> 0b 90 48 81 ff 00 44 14 8e 74 47 48 c7 c0 30 33 a1 8f 48 c1 e8 RSP: 0018:ffffc90000007bb8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000a02 RCX: ffffffff81a7b9ad RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8e144400 RBP: ffffc90000007e30 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff3358884 R12: 0000000000002904 R13: 1ffff110170c7922 R14: ffffffff8e144400 R15: dffffc0000000000 rcu_core+0x5f7/0x1710 kernel/rcu/tree.c:2827 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:__sanitizer_cov_trace_pc+0x4a/0x70 kernel/kcov.c:223 Code: 81 fa 00 01 00 00 75 35 83 b9 3c 16 00 00 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 48 8d 7e 01 <8b> 89 1c 16 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 c3 cc cc RSP: 0018:ffffc900050968b8 EFLAGS: 00000246 RAX: ffffffff81c9cb3c RBX: 000000000000002c RCX: ffff888030830000 RDX: ffffc9000ca0c000 RSI: 000000000000b590 RDI: 000000000000b591 RBP: ffffc90005096a00 R08: 0000000000000002 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff91ffff90005 R12: 1ffff92000a12d28 R13: 000000000000000d R14: ffffc90005096960 R15: ffffc90005096980 perf_trace_buf_alloc+0x1c/0x2a0 kernel/trace/trace_event_perf.c:399 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x196/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 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_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 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 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kfree+0x18e/0x440 mm/slub.c:4842 free_func_state kernel/bpf/verifier.c:1660 [inline] free_verifier_state+0xaf/0x230 kernel/bpf/verifier.c:1676 free_states kernel/bpf/verifier.c:22926 [inline] do_check_common+0x1935/0x2400 kernel/bpf/verifier.c:23083 do_check_main kernel/bpf/verifier.c:23162 [inline] bpf_check+0x110e2/0x1a240 kernel/bpf/verifier.c:24516 bpf_prog_load+0x1318/0x1930 kernel/bpf/syscall.c:2972 __sys_bpf+0x5f1/0x860 kernel/bpf/syscall.c:5978 __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: 0033:0x7f202838e929 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:00007f2029211038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f20285b5fa0 RCX: 00007f202838e929 RDX: 0000000000000048 RSI: 0000200000000200 RDI: 0000000000000005 RBP: 00007f2028410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f20285b5fa0 R15: 00007ffd164dc688