RBP: 00007f82af06947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82af14b2c0 R15: 00007fff576bdd98 watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz-executor.3:8098] Modules linked in: CPU: 0 PID: 8098 Comm: syz-executor.3 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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:ffffc90001117740 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000ffffb929 RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812514d488 RBP: ffffc90001117830 R08: dffffc0000000000 R09: ffffed1024a29a92 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7037ed4 R13: 1ffff11024a29a91 R14: 1ffff1103ee00001 R15: ffff88812514d488 FS: 00007f82add0c6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000012731a000 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 spin_lock_bh include/linux/spinlock.h:368 [inline] lock_sock_nested+0x97/0x300 net/core/sock.c:3258 lock_sock include/net/sock.h:1676 [inline] tipc_sendstream+0x47/0x70 net/tipc/socket.c:1549 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2431 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2521 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2521 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: 0033:0x7f82af01ce69 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:00007f82add0c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f82af14b2c0 RCX: 00007f82af01ce69 RDX: 0000000000000000 RSI: 0000000020000380 RDI: 0000000000000003 RBP: 00007f82af06947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82af14b2c0 R15: 00007fff576bdd98 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8093 Comm: syz-executor.3 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:28 [inline] RIP: 0010:queued_spin_trylock include/asm-generic/qspinlock.h:63 [inline] RIP: 0010:do_raw_spin_trylock include/linux/spinlock.h:205 [inline] RIP: 0010:__raw_spin_trylock_bh include/linux/spinlock_api_smp.h:182 [inline] RIP: 0010:_raw_spin_trylock_bh+0x87/0x190 kernel/locking/spinlock.c:146 Code: f3 f3 f3 4b 89 04 3c bf 01 02 00 00 e8 b2 73 83 fc 4c 89 ef be 04 00 00 00 e8 15 81 e9 fc 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 9d 00 00 00 45 8b 75 00 48 c1 eb 03 42 0f b6 04 3b 84 RSP: 0018:ffffc90000ce69c0 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffffc90000ce69e0 RCX: ffffffff84c8b2eb RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88812514d488 RBP: ffffc90000ce6a50 R08: dffffc0000000000 R09: ffffed1024a29a92 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200019cd38 R13: ffff88812514d488 R14: 0000000093489c88 R15: dffffc0000000000 FS: 00007f82add906c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c222000 CR3: 000000012731a000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: spin_trylock_bh include/linux/spinlock.h:423 [inline] tipc_sk_rcv+0x480/0x1b50 net/tipc/socket.c:2496 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb+0x153/0x1b0 net/tipc/node.c:1768 tipc_sk_rcv+0x1690/0x1b50 net/tipc/socket.c:2522 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline] tipc_sk_filter_connect net/tipc/socket.c:2255 [inline] tipc_sk_filter_rcv+0x194e/0x3380 net/tipc/socket.c:2364 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x80c/0x1b50 net/tipc/socket.c:2497 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1783 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2412 sk_backlog_rcv include/net/sock.h:1069 [inline] __release_sock+0x145/0x410 net/core/sock.c:2719 release_sock+0x65/0x1b0 net/core/sock.c:3270 tipc_release+0xee9/0x1300 net/tipc/socket.c:652 __sock_release net/socket.c:649 [inline] sock_close+0xdf/0x270 net/socket.c:1336 __fput+0x3fe/0x910 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:175 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f82af01ce69 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:00007f82add900c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 0000000000000000 RBX: 00007f82af14af80 RCX: 00007f82af01ce69 RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00007f82af06947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82af14af80 R15: 00007fff576bdd98