RBP: 00007f005b3c18d8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f005b4eff80 R15: 00007ffc3d0796c8 watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz.1.7866:22099] Modules linked in: CPU: 1 PID: 22099 Comm: syz.1.7866 Tainted: G W 5.15.153-syzkaller-00176-g88e96b82205f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x5ba/0xc40 kernel/locking/qspinlock.c:508 Code: 00 00 49 89 dc c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 48 01 00 00 48 8b 44 24 08 c6 00 01 bb 00 80 ff ff eb 06 f3 90 c3 74 5e 41 0f b6 44 15 00 84 c0 75 36 41 80 3f 00 75 ea 4c 89 RSP: 0018:ffffc900001d0380 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000ffff924f RCX: ffffffff81550dbf RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812556e928 RBP: ffffc900001d0470 R08: dffffc0000000000 R09: ffffed1024aadd26 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7138ad4 R13: 1ffff11024aadd25 R14: 1ffff1103ee20001 R15: ffff88812556e928 FS: 00007f0059fd16c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001202a5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 __sock_map_delete net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x99/0x130 net/core/sock_map.c:448 bpf_prog_8a405b5ced52e191+0x42/0x380 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:621 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x159/0x210 kernel/trace/bpf_trace.c:1917 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 sk_psock_free_link include/linux/skmsg.h:420 [inline] sock_map_del_link net/core/sock_map.c:160 [inline] sock_map_unref+0x352/0x4d0 net/core/sock_map.c:182 __sock_map_delete net/core/sock_map.c:422 [inline] sock_map_delete_elem+0xc1/0x130 net/core/sock_map.c:448 bpf_prog_8a405b5ced52e191+0x42/0x380 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:621 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x159/0x210 kernel/trace/bpf_trace.c:1917 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 skb_free_head net/core/skbuff.c:656 [inline] skb_release_data+0x8a9/0xa80 net/core/skbuff.c:678 skb_release_all net/core/skbuff.c:743 [inline] __kfree_skb net/core/skbuff.c:757 [inline] kfree_skb_reason net/core/skbuff.c:778 [inline] kfree_skb+0xba/0x360 net/core/skbuff.c:792 ip6_rcv_core+0xa58/0x1300 ipv6_rcv+0xca/0x270 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5492 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5606 process_backlog+0x31c/0x650 net/core/dev.c:6483 __napi_poll+0xc4/0x5a0 net/core/dev.c:7042 napi_poll net/core/dev.c:7109 [inline] net_rx_action+0x47d/0xc50 net/core/dev.c:7199 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916 Code: 4c 89 e7 e8 b0 cc ce fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 b4 75 68 fc fb bf 01 00 00 00 e9 e3 ff ff fa bf 01 00 00 00 e8 3e 77 68 fc 65 48 8b 1d d6 b0 RSP: 0018:ffffc90000a96fa0 EFLAGS: 00000246 RAX: 1ffff11031a8d8be RBX: 1ffff92000152df8 RCX: ffffffff84e58e00 RDX: 1ffff11031a8d76d RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000a97038 R08: ffffffff874cb040 R09: ffffffff874cb048 R10: ffffffff874cb058 R11: ffffffff874cb050 R12: ffffc90000a96fc0 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000152df4 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline] RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x34/0x90 kernel/kcov.c:284 Code: 8b 15 00 1f 92 7e 65 8b 05 01 1f 92 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 5c 0b 00 00 00 74 52 8b 82 38 0b 00 00 <83> f8 03 75 47 48 8b 8a 40 0b 00 00 44 8b 92 3c 0b 00 00 49 c1 e2 RSP: 0018:ffffc90000a97130 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff88818d46bb40 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000a97130 R08: ffffffff8183acac R09: ffffffff8184427b R10: 0000000000000002 R11: ffff88818d46bb40 R12: 0000000000000007 R13: ffff8881138063c0 R14: ffffc9000017d0b9 R15: 1ffff9200002fa17 check_alu_op kernel/bpf/verifier.c:8354 [inline] do_check+0x6cfc/0xf2c0 kernel/bpf/verifier.c:11194 do_check_common+0x909/0x1290 kernel/bpf/verifier.c:13409 do_check_main kernel/bpf/verifier.c:13472 [inline] bpf_check+0x3835/0x12bf0 kernel/bpf/verifier.c:14043 bpf_prog_load+0x12ac/0x1b50 kernel/bpf/syscall.c:2333 __sys_bpf+0x4bc/0x760 kernel/bpf/syscall.c:4633 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4735 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f005b3539b9 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:00007f0059fd1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f005b4eff80 RCX: 00007f005b3539b9 RDX: 0000000000000090 RSI: 0000000020000840 RDI: 0000000000000005 RBP: 00007f005b3c18d8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f005b4eff80 R15: 00007ffc3d0796c8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 22110 Comm: syz.0.7870 Tainted: G W 5.15.153-syzkaller-00176-g88e96b82205f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:pv_wait_node kernel/locking/qspinlock_paravirt.h:301 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x38b/0xc40 kernel/locking/qspinlock.c:473 Code: 00 00 00 00 00 fc ff df 41 0f b6 04 16 84 c0 0f 85 ac 00 00 00 48 8b 44 24 08 83 38 00 0f 85 15 01 00 00 45 84 e4 74 09 f3 90 <41> ff cc 75 d9 eb 1b 48 8b 44 24 20 0f b6 04 10 84 c0 0f 85 cd 00 RSP: 0018:ffffc90000ad7640 EFLAGS: 00000286 RAX: ffff8881f7038ac8 RBX: ffff8881f7038ad4 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8881f7038ad4 RBP: ffffc90000ad7730 R08: dffffc0000000000 R09: ffffed103ee0715b R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000056a6 R13: 1ffff11024aadd25 R14: 1ffff1103ee07159 R15: ffff88812556e928 FS: 00007f1da79fe6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200054c0 CR3: 00000001122e0000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 __sock_map_delete net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x99/0x130 net/core/sock_map.c:448 bpf_prog_8a405b5ced52e191+0x42/0x380 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:621 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x159/0x210 kernel/trace/bpf_trace.c:1917 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 free_cpuset kernel/cgroup/cpuset.c:608 [inline] cpuset_write_resmask+0x10aa/0x1600 kernel/cgroup/cpuset.c:2569 cgroup_file_write+0x290/0x590 kernel/cgroup/cgroup.c:3958 kernfs_fop_write_iter+0x2c4/0x410 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2204 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xd5d/0x1110 fs/read_write.c:594 ksys_write+0x199/0x2c0 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:656 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1da8d809b9 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:00007f1da79fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f1da8f1cf80 RCX: 00007f1da8d809b9 RDX: 0000000000000012 RSI: 00000000200011c0 RDI: 000000000000000a RBP: 00007f1da8dee8d8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1da8f1cf80 R15: 00007ffff424ed18