RBP: 00007f49950ab2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4995243080 R15: 00007fff8a838ca8
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.0.261:1310]
Modules linked in:
CPU: 1 PID: 1310 Comm: syz.0.261 Not tainted 5.10.234-syzkaller-1006652-g3f5f2283d684 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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 60 aa 97 7e 65 8b 05 65 aa 97 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba dc 0a 00 00 00 74 52 8b 82 b8 0a 00 00 <83> f8 03 75 47 48 8b 8a c0 0a 00 00 44 8b 92 bc 0a 00 00 49 c1 e2
RSP: 0018:ffffc900025ee1f0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000025ee203
RDX: ffff8881192c93c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900025ee1f0 R08: ffffffff849a3e0f R09: 0000000000000003
R10: fffff520004bdc50 R11: dffffc0000000001 R12: fffffffffffffc18
R13: ffff888112e621e8 R14: 0000000000000000 R15: 000000000000035c
FS:  00007f4994a7b6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4994a7bd58 CR3: 000000012db90000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 __rhashtable_lookup include/linux/rhashtable.h:602 [inline]
 rhashtable_lookup include/linux/rhashtable.h:638 [inline]
 tipc_sk_lookup+0x31f/0x650 net/tipc/socket.c:2997
 tipc_sk_rcv+0x499/0x1e30 net/tipc/socket.c:2488
 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674
 tipc_node_xmit_skb net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754
 tipc_sk_rcv+0x177d/0x1e30 net/tipc/socket.c:2497
 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674
 tipc_sk_push_backlog+0x4da/0x7b0 net/tipc/socket.c:1306
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1358 [inline]
 tipc_sk_proto_rcv+0xaa9/0x1db0 net/tipc/socket.c:2156
 tipc_sk_filter_rcv+0x3603/0x3e00 net/tipc/socket.c:2350
 tipc_sk_enqueue net/tipc/socket.c:2442 [inline]
 tipc_sk_rcv+0x8a1/0x1e30 net/tipc/socket.c:2493
 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674
 tipc_node_xmit_skb net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754
 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2410
 sk_backlog_rcv include/net/sock.h:1052 [inline]
 __release_sock+0x148/0x410 net/core/sock.c:2583
 release_sock+0x65/0x1b0 net/core/sock.c:3134
 tipc_wait_for_rcvmsg+0x311/0x630 net/tipc/socket.c:1849
 tipc_recvstream+0x292/0xf70 net/tipc/socket.c:2040
 ____sys_recvmsg+0x286/0x530
 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2637
 __sys_recvmsg net/socket.c:2667 [inline]
 __do_sys_recvmsg net/socket.c:2677 [inline]
 __se_sys_recvmsg net/socket.c:2674 [inline]
 __x64_sys_recvmsg+0x1ee/0x2c0 net/socket.c:2674
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f4995029de9
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:00007f4994a7b038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f4995243080 RCX: 00007f4995029de9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f49950ab2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4995243080 R15: 00007fff8a838ca8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1309 Comm: syz.0.261 Not tainted 5.10.234-syzkaller-1006652-g3f5f2283d684 #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+0x5a1/0xc70 kernel/locking/qspinlock.c:508
Code: 85 ba 01 00 00 c6 03 00 48 8b 44 24 28 42 0f b6 04 30 84 c0 0f 85 bf 01 00 00 48 8b 04 24 c6 00 01 bb 00 80 ff ff eb 06 f3 90 <ff> c3 74 50 43 0f b6 44 35 00 84 c0 75 32 41 80 3c 24 00 75 e9 4c
RSP: 0018:ffffc90002517740 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00000000ffffca91 RCX: ffffffff8150ca64
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc900025176c0
RBP: ffffc90002517830 R08: dffffc0000000000 R09: ffffed10225cc3d2
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888112e61e88
R13: 1ffff110225cc3d1 R14: dffffc0000000000 R15: ffff88823ff52e00
FS:  00007f4994a9c6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4994a7af98 CR3: 000000012db90000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [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:183 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x92/0x300 net/core/sock.c:3117
 lock_sock include/net/sock.h:1648 [inline]
 tipc_sendstream+0x47/0x70 net/tipc/socket.c:1540
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2376
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2430
 __sys_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg+0x1b1/0x280 net/socket.c:2466
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2466
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f4995029de9
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:00007f4994a9c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4995242fa0 RCX: 00007f4995029de9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f49950ab2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4995242fa0 R15: 00007fff8a838ca8