RBP: 00007f2d41c9a49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2d41d7cf80 R15: 00007ffe9c05c8e8 watchdog: BUG: soft lockup - CPU#1 stuck for 245s! [syz-executor.3:23300] Modules linked in: CPU: 1 PID: 23300 Comm: syz-executor.3 Tainted: G W 5.15.149-syzkaller-00055-g424f92bcbe8f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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 5b 03 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:ffffc9000116f2c0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff9200022de5c RCX: 1ffffffff0d1aa9c RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8881f7137ed4 RBP: ffffc9000116f370 R08: dffffc0000000000 R09: ffffed103ee26fdb R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7137ed4 R14: 0000000000000001 R15: 1ffff9200022de60 FS: 00007f2d409c26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fe26000 CR3: 0000000116f6a000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000c40a DR6: 00000000ffff0ff0 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/0xbd8 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:1883 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1922 __bpf_trace_mm_page_alloc+0xbf/0xf0 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 allocate_slab mm/slub.c:1932 [inline] new_slab+0x9a/0x4e0 mm/slub.c:1995 ___slab_alloc+0x39e/0x830 mm/slub.c:3028 __slab_alloc+0x4a/0x90 mm/slub.c:3115 slab_alloc_node mm/slub.c:3206 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc_trace+0x142/0x210 mm/slub.c:3265 kmalloc include/linux/slab.h:603 [inline] kzalloc include/linux/slab.h:733 [inline] kobject_uevent_env+0x269/0x700 lib/kobject_uevent.c:524 kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:642 netdev_queue_add_kobject net/core/net-sysfs.c:1677 [inline] netdev_queue_update_kobjects+0x1c0/0x400 net/core/net-sysfs.c:1711 netif_set_real_num_tx_queues+0x16b/0x7c0 net/core/dev.c:2947 tun_set_real_num_queues drivers/net/tun.c:590 [inline] tun_attach+0x103d/0x1410 drivers/net/tun.c:844 tun_set_iff+0x488/0xdb0 drivers/net/tun.c:2721 __tun_chr_ioctl+0x85b/0x2290 drivers/net/tun.c:3056 tun_chr_ioctl+0x2a/0x40 drivers/net/tun.c:3343 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 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: 0033:0x7f2d41c4dee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2d409c20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2d41d7cf80 RCX: 00007f2d41c4dee9 RDX: 0000000020000040 RSI: 00000000400454ca RDI: 0000000000000006 RBP: 00007f2d41c9a49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2d41d7cf80 R15: 00007ffe9c05c8e8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 23301 Comm: syz-executor.4 Tainted: G W 5.15.149-syzkaller-00055-g424f92bcbe8f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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 5b 03 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:ffffc90000ae68c0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff9200015cd1c RCX: ffffffff8154fa7f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811a04c718 RBP: ffffc90000ae6970 R08: dffffc0000000000 R09: ffffed10234098e4 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811a04c718 R14: 0000000000000003 R15: 1ffff9200015cd20 FS: 00007fad9bccb6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0086d2e000 CR3: 0000000115320000 CR4: 00000000003506b0 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_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 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/0xbd8 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:1883 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1922 __bpf_trace_mm_page_alloc+0xbf/0xf0 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/0xbd8 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:1883 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1922 __bpf_trace_mm_page_alloc+0xbf/0xf0 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] kmalloc_order+0x4a/0x160 mm/slab_common.c:975 kmalloc_order_trace+0x1a/0xb0 mm/slab_common.c:994 kmalloc_large include/linux/slab.h:532 [inline] __kmalloc+0x19c/0x270 mm/slub.c:4416 kmalloc include/linux/slab.h:608 [inline] kzalloc include/linux/slab.h:733 [inline] slhc_init+0x16c/0x7a0 drivers/net/slip/slhc.c:115 ppp_ioctl+0x13de/0x19a0 drivers/net/ppp/ppp_generic.c:877 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 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: 0033:0x7fad9cf56ee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fad9bccb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fad9d085f80 RCX: 00007fad9cf56ee9 RDX: 000000002000000c RSI: 0000000040047451 RDI: 0000000000000003 RBP: 00007fad9cfa349e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fad9d085f80 R15: 00007ffeba81f828