watchdog: BUG: soft lockup - CPU#0 stuck for 154s! [syz.8.3561:12813] Modules linked in: CPU: 0 PID: 12813 Comm: syz.8.3561 Not tainted 5.15.180-syzkaller-android13-5.15.180_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x527/0x9c0 kernel/locking/qspinlock.c:508 Code: 00 41 c6 45 00 00 48 8b 44 24 10 42 0f b6 04 38 84 c0 0f 85 1c 01 00 00 48 8b 44 24 08 c6 00 01 41 bd 00 80 ff ff eb 07 f3 90 <41> ff c5 74 47 43 0f b6 04 3e 84 c0 75 2b 80 3b 00 75 eb 48 89 df RSP: 0018:ffffc900012079a0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffff888128141488 RCX: ffffffff814f2479 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff888128141488 RBP: ffffc90001207a90 R08: dffffc0000000000 R09: ffffed1025028292 R10: ffffed1025028292 R11: 1ffff11025028291 R12: 1ffff1103ee00001 R13: 00000000ffff93a3 R14: 1ffff11025028291 R15: dffffc0000000000 FS: 000055556485d500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2f729f CR3: 000000012141a000 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+0x47/0x50 arch/x86/include/asm/qspinlock.h:51 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+0xd8/0xe0 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:368 [inline] lock_sock_nested+0x97/0x290 net/core/sock.c:3272 lock_sock include/net/sock.h:1684 [inline] tipc_release+0xb2/0x1630 net/tipc/socket.c:639 __sock_release net/socket.c:649 [inline] sock_close+0xe0/0x270 net/socket.c:1336 __fput+0x20b/0x8b0 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f840d7e9969 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:00007ffedcc21db8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f840da12ba0 RCX: 00007f840d7e9969 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f840da12ba0 R08: 00000000000000b0 R09: 0000000adcc220af R10: 00007f840da12ac0 R11: 0000000000000246 R12: 000000000006f976 R13: 00007f840da11080 R14: ffffffffffffffff R15: 00007ffedcc21ed0 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12814 Comm: syz.8.3561 Not tainted 5.15.180-syzkaller-android13-5.15.180_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline] RIP: 0010:kasan_check_range+0x13/0x290 mm/kasan/generic.c:189 Code: 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc b0 01 48 85 f6 0f 84 a9 01 00 00 55 48 89 e5 41 57 41 56 <53> 49 89 f8 49 01 f0 0f 82 58 02 00 00 49 89 f8 49 c1 e8 2f 41 81 RSP: 0018:ffffc90000ce68b0 EFLAGS: 00000202 RAX: 0000000000000301 RBX: ffff888128141480 RCX: ffffffff8489a55d RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888128141480 RBP: ffffc90000ce68c0 R08: 0000000000000004 R09: 0000000000ce6903 R10: fffff5200019cd2c R11: 1ffff9200019cd2c R12: dffffc0000000000 R13: ffff888128141400 R14: 0000000000000000 R15: fffffffffffffc08 FS: 00007f840be526c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003000 CR3: 000000012141a000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_fetch_add_relaxed include/linux/atomic/atomic-instrumented.h:111 [inline] __refcount_add include/linux/refcount.h:193 [inline] __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] sock_hold include/net/sock.h:747 [inline] tipc_sk_lookup+0x4dd/0x5f0 net/tipc/socket.c:3001 tipc_sk_rcv+0x3fe/0x2c60 net/tipc/socket.c:2492 tipc_node_xmit+0x256/0xce0 net/tipc/node.c:1703 tipc_node_xmit_skb+0xe9/0x130 net/tipc/node.c:1768 tipc_sk_rcv+0x1d5d/0x2c60 net/tipc/socket.c:2522 tipc_node_xmit+0x256/0xce0 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+0x151b/0x2c40 net/tipc/socket.c:2364 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x7b7/0x2c60 net/tipc/socket.c:2497 tipc_node_xmit+0x256/0xce0 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1783 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2412 sk_backlog_rcv include/net/sock.h:1071 [inline] __release_sock+0x143/0x350 net/core/sock.c:2733 release_sock+0x60/0x1b0 net/core/sock.c:3284 tipc_release+0xd0b/0x1630 net/tipc/socket.c:652 __sock_release net/socket.c:649 [inline] sock_close+0xe0/0x270 net/socket.c:1336 __fput+0x20b/0x8b0 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f840d7e9969 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:00007f840be52038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 00000000000203a0 RBX: 00007f840da10fa0 RCX: 00007f840d7e9969 RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000006 RBP: 00007f840d86bab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f840da10fa0 R15: 00007ffedcc21c58