watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz.2.1208:3716] Modules linked in: CPU: 0 PID: 3716 Comm: syz.2.1208 Not tainted 5.15.150-syzkaller-00330-g9044d25b8ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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: 0000:ffffc90000da64a0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000ffffa414 RCX: ffffffff8154fbbf RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811072b658 RBP: ffffc90000da6590 R08: dffffc0000000000 R09: ffffed10220e56cc R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7038ad4 R13: 1ffff110220e56cb R14: 1ffff1103ee00001 R15: ffff88811072b658 FS: 0000555555e1d500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f03c704d0a0 CR3: 00000001219d3000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0xd9c bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] __stack_depot_save+0x38d/0x470 lib/stackdepot.c:326 stack_depot_save+0xe/0x10 lib/stackdepot.c:383 save_stack+0x104/0x1e0 mm/page_owner.c:140 __set_page_owner+0x28/0x2e0 mm/page_owner.c:200 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2604 prep_new_page+0x1b/0x110 mm/page_alloc.c:2610 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4484 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5776 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] __stack_depot_save+0x38d/0x470 lib/stackdepot.c:326 kasan_save_stack mm/kasan/common.c:39 [inline] kasan_set_track+0x5d/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kfree+0xc8/0x220 mm/slub.c:4579 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_hash_delete_elem+0x274/0x2f0 net/core/sock_map.c:941 bpf_prog_2c29ac5cdc6b1842+0x3a/0xd9c bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] wp_page_copy+0x200/0x1b00 mm/memory.c:3191 do_wp_page+0x6fa/0xb60 handle_pte_fault+0x7c0/0x24d0 mm/memory.c:4892 do_handle_mm_fault+0x1ea9/0x23a0 mm/memory.c:5293 do_user_addr_fault arch/x86/mm/fault.c:1365 [inline] handle_page_fault arch/x86/mm/fault.c:1549 [inline] exc_page_fault+0x26f/0x830 arch/x86/mm/fault.c:1605 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0033:0x7f03c6d964a5 Code: 00 00 00 00 00 48 8b 57 18 48 83 fa ff 74 22 48 81 fa e7 03 00 00 0f 87 ab 00 00 00 48 c1 e2 04 48 8d 0d fe 6b 2b 00 48 01 ca 02 01 48 89 42 08 49 8d 6c 24 10 4c 8d 2d e8 6b 2b 00 0f 1f 84 RSP: 002b:00007ffcb9d9ce50 EFLAGS: 00010206 RAX: 0000000000000003 RBX: 0000000000029b27 RCX: 00007f03c704d0a0 RDX: 00007f03c704d0a0 RSI: 0000000000000080 RDI: 00007f03c7050f60 RBP: 0000000000029af5 R08: 00007ffcb9dd90b0 R09: 00000002b9d9d1bf R10: 00007ffcb9d9cf70 R11: 0000000000000246 R12: 00007f03c7050f60 R13: 0000000000000032 R14: 00007f03c7050f60 R15: 00007f03c7050f60 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3586 Comm: syz.0.1159 Not tainted 5.15.150-syzkaller-00330-g9044d25b8ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:918 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d 4b 02 f3 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc90000d66380 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff920001acc74 RCX: 1ffffffff0d1aa9c RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8881f7138ad4 RBP: ffffc90000d66430 R08: dffffc0000000000 R09: ffffed103ee2715b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7138ad4 R14: 0000000000000001 R15: 1ffff920001acc78 FS: 00007fb03f8af6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 0000000116e77000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_node kernel/locking/qspinlock_paravirt.h:325 [inline] __pv_queued_spin_lock_slowpath+0x41b/0xc40 kernel/locking/qspinlock.c:473 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_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0xd9c bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] shmem_alloc_page mm/shmem.c:1587 [inline] shmem_alloc_and_acct_page+0x4bd/0xa80 mm/shmem.c:1612 shmem_getpage_gfp+0x1388/0x23c0 mm/shmem.c:1907 shmem_getpage mm/shmem.c:152 [inline] shmem_write_begin+0xca/0x1b0 mm/shmem.c:2478 generic_perform_write+0x2bc/0x5a0 mm/filemap.c:3849 __generic_file_write_iter+0x25b/0x4b0 mm/filemap.c:3976 generic_file_write_iter+0xaf/0x1c0 mm/filemap.c:4008 __kernel_write+0x5ab/0xa60 fs/read_write.c:539 __dump_emit+0x261/0x3a0 fs/coredump.c:875 dump_emit+0x381/0x3f0 fs/coredump.c:912 dump_user_range+0x86/0x1c0 fs/coredump.c:949 elf_core_dump+0x3663/0x3e80 fs/binfmt_elf.c:2285 do_coredump+0x1834/0x3050 fs/coredump.c:826 get_signal+0x4c8/0x1630 kernel/signal.c:2882 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:314 irqentry_exit+0x12/0x40 kernel/entry/common.c:405 exc_general_protection+0x327/0x4b0 arch/x86/kernel/traps.c:562 asm_exc_general_protection+0x27/0x30 arch/x86/include/asm/idtentry.h:562 RIP: 0033:0x7fb04062dbe1 Code: 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 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:0000000020000250 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fb0407bbf60 RCX: 00007fb04062dbd9 RDX: 0000000020000040 RSI: 0000000020000250 RDI: 0000000000020000 RBP: 00007fb04069caa1 R08: 00000000200005c0 R09: 00000000200005c0 R10: 0000000020000280 R11: 0000000000000206 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb0407bbf60 R15: 00007fff05e5e4e8