CFI failure at __traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53 (target: tp_stub_func+0x0/0x10; expected type: 0x82fbfa63)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 387 Comm: syz-execprog Not tainted 6.1.134-syzkaller-1169260-g646380b087a5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:__traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53
Code: f8 48 c1 e8 03 80 3c 18 00 74 05 e8 53 3f 53 00 49 8b 7d 08 4c 89 fe 48 8b 55 c8 8b 4d d4 41 ba 9d 05 04 7d 45 03 56 fc 74 02 <0f> 0b 41 ff d6 49 83 c4 18 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08
RSP: 0018:ffffc90000007348 EFLAGS: 00010017
RAX: 1ffff110241016b6 RBX: dffffc0000000000 RCX: 000000000c800000
RDX: 00000000ffffa171 RSI: ffff888120f804e8 RDI: ffffc900006e3000
RBP: ffffc90000007380 R08: dffffc0000000000 R09: ffffc90000007228
R10: 0000000022446ca9 R11: 1ffff92000000e45 R12: ffff88812080b5a8
R13: ffff88812080b5a8 R14: ffffffff81710320 R15: ffff888120f804e8
FS:  000000c002ca1898(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010d021000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 trace_timer_start include/trace/events/timer.h:53 [inline]
 enqueue_timer+0x337/0x480 kernel/time/timer.c:615
 __mod_timer+0x79f/0xb30 kernel/time/timer.c:-1
 mod_timer+0x1f/0x30 kernel/time/timer.c:1172
 sk_reset_timer+0x22/0xb0 net/core/sock.c:3390
 tcp_send_delayed_ack+0x30a/0x400 net/ipv4/tcp_output.c:3965
 __tcp_ack_snd_check+0x437/0x910 net/ipv4/tcp_input.c:5615
 tcp_ack_snd_check net/ipv4/tcp_input.c:5656 [inline]
 tcp_rcv_established+0xa18/0x19f0 net/ipv4/tcp_input.c:6100
 tcp_v4_do_rcv+0x446/0xa10 net/ipv4/tcp_ipv4.c:1683
 tcp_v4_rcv+0x233c/0x2a80 net/ipv4/tcp_ipv4.c:2114
 ip_protocol_deliver_rcu+0x325/0x6e0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x24e/0x410 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip_local_deliver+0x1d8/0x320 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:463 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip_rcv+0x163/0x270 net/ipv4/ip_input.c:569
 __netif_receive_skb_one_core net/core/dev.c:5585 [inline]
 __netif_receive_skb+0xd7/0x2a0 net/core/dev.c:5699
 process_backlog+0x351/0x600 net/core/dev.c:6027
 __napi_poll+0xd0/0x5e0 net/core/dev.c:6594
 napi_poll net/core/dev.c:6661 [inline]
 net_rx_action+0x49b/0xaa0 net/core/dev.c:6775
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:624
 __do_softirq+0xb/0xd kernel/softirq.c:662
 do_softirq+0xc6/0x120 kernel/softirq.c:506
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:430
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:870 [inline]
 __dev_queue_xmit+0x13fb/0x3420 net/core/dev.c:4372
 dev_queue_xmit include/linux/netdevice.h:3084 [inline]
 neigh_hh_output include/net/neighbour.h:536 [inline]
 neigh_output include/net/neighbour.h:550 [inline]
 ip_finish_output2+0xb09/0xef0 net/ipv4/ip_output.c:228
 __ip_finish_output+0x172/0x370 net/ipv4/ip_output.c:-1
 ip_finish_output+0x31/0x2b0 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip_output+0x1e1/0x360 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:453 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 __ip_queue_xmit+0x11c9/0x1d00 net/ipv4/ip_output.c:532
 ip_queue_xmit+0x4d/0x70 net/ipv4/ip_output.c:546
 __tcp_transmit_skb+0x1d7d/0x3340 net/ipv4/tcp_output.c:1403
 tcp_transmit_skb net/ipv4/tcp_output.c:1421 [inline]
 tcp_write_xmit+0x15fc/0x5fb0 net/ipv4/tcp_output.c:2707
 __tcp_push_pending_frames+0x9c/0x2f0 net/ipv4/tcp_output.c:2892
 tcp_push+0x48f/0x660 net/ipv4/tcp.c:734
 tcp_sendmsg_locked+0x34f1/0x3d90 net/ipv4/tcp.c:1460
 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1488
 inet6_sendmsg+0xb6/0xd0 net/ipv6/af_inet6.c:668
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 sock_write_iter+0x2ca/0x3b0 net/socket.c:1133
 call_write_iter include/linux/fs.h:2274 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5db/0xca0 fs/read_write.c:584
 ksys_write+0x140/0x240 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x47f4ce
Code: 24 28 44 8b 44 24 2c e9 70 ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48
RSP: 002b:000000c0000273b0 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000047f4ce
RDX: 00000000000003f0 RSI: 000000c0002cb010 RDI: 0000000000000006
RBP: 000000c0000273f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 000000c000027520
R13: 000000000000012e R14: 000000c002de48c0 R15: 000000c0002caf00
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53
Code: f8 48 c1 e8 03 80 3c 18 00 74 05 e8 53 3f 53 00 49 8b 7d 08 4c 89 fe 48 8b 55 c8 8b 4d d4 41 ba 9d 05 04 7d 45 03 56 fc 74 02 <0f> 0b 41 ff d6 49 83 c4 18 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08
RSP: 0018:ffffc90000007348 EFLAGS: 00010017
RAX: 1ffff110241016b6 RBX: dffffc0000000000 RCX: 000000000c800000
RDX: 00000000ffffa171 RSI: ffff888120f804e8 RDI: ffffc900006e3000
RBP: ffffc90000007380 R08: dffffc0000000000 R09: ffffc90000007228
R10: 0000000022446ca9 R11: 1ffff92000000e45 R12: ffff88812080b5a8
R13: ffff88812080b5a8 R14: ffffffff81710320 R15: ffff888120f804e8
FS:  000000c002ca1898(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010d021000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400