------------[ cut here ]------------
WARNING: CPU: 0 PID: 7053 at net/mptcp/subflow.c:1405 subflow_data_ready+0x39f/0x690 net/mptcp/subflow.c:1405
Modules linked in:
CPU: 0 PID: 7053 Comm: syz-executor.1 Not tainted 6.6.0-syzkaller-16201-gb57b17e88bf5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:subflow_data_ready+0x39f/0x690 net/mptcp/subflow.c:1405
Code: 18 89 ee e8 03 5f 1d f7 40 84 ed 75 1f e8 c9 63 1d f7 44 89 fe bf 07 00 00 00 e8 2c 5f 1d f7 41 83 ff 07 74 07 e8 b1 63 1d f7 <0f> 0b e8 aa 63 1d f7 48 89 df e8 d2 b2 ff ff 31 ff 89 c5 89 c6 e8
RSP: 0018:ffffc90000007438 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88802d61ee40 RCX: ffffffff8a6a3734
RDX: ffff888031578040 RSI: ffffffff8a6a373f RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000007
R10: 000000000000000b R11: 0000000000000000 R12: 1ffff92000000e87
R13: ffff888025ad4f00 R14: ffff88801ae4a400 R15: 000000000000000b
FS: 00007f0bfb9656c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f35a6b7a1f8 CR3: 000000001c828000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tcp_data_ready+0x14c/0x5b0 net/ipv4/tcp_input.c:5128
tcp_data_queue+0x19c3/0x5190 net/ipv4/tcp_input.c:5208
tcp_rcv_state_process+0x11ef/0x4e10 net/ipv4/tcp_input.c:6844
tcp_v4_do_rcv+0x369/0xa10 net/ipv4/tcp_ipv4.c:1929
tcp_v4_rcv+0x3888/0x3b30 net/ipv4/tcp_ipv4.c:2329
ip_protocol_deliver_rcu+0x9f/0x480 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2e4/0x510 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_local_deliver+0x1b6/0x550 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1c4/0x2e0 net/ipv4/ip_input.c:449
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_rcv+0xce/0x440 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5527
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5641
process_backlog+0x101/0x6b0 net/core/dev.c:5969
__napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6531
napi_poll net/core/dev.c:6600 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6733
__do_softirq+0x21a/0x968 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_switch+0x6/0x90 kernel/kcov.c:317
Code: 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 48 89 f2 48 89 fe bf 07 00 00 00 e9 88 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 56 <41> 55 41 54 49 89 fc 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 63
RSP: 0018:ffffc90004d0f450 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffffc90004d0f4e0 RCX: 0000000000000001
RDX: 0000000000000005 RSI: ffffffff8ac9d6e0 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000000 R12: ffffffff8fadd1de
R13: 0000000000000015 R14: ffffffff8fadd1e2 R15: ffffc90004d0f515
unwind_next_frame+0x6b5/0x2390 arch/x86/kernel/unwind_orc.c:515
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:128
__reset_page_owner+0x5a/0x190 mm/page_owner.c:149
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1137 [inline]
free_unref_page_prepare+0x4f8/0xa90 mm/page_alloc.c:2347
free_unref_page_list+0xe6/0xb30 mm/page_alloc.c:2533
release_pages+0x32a/0x14e0 mm/swap.c:1042
__folio_batch_release+0x77/0xe0 mm/swap.c:1062
folio_batch_release include/linux/pagevec.h:83 [inline]
shmem_undo_range+0x57a/0x1030 mm/shmem.c:1004
shmem_truncate_range mm/shmem.c:1096 [inline]
shmem_evict_inode+0x39f/0xba0 mm/shmem.c:1224
evict+0x2ed/0x6b0 fs/inode.c:664
iput_final fs/inode.c:1775 [inline]
iput.part.0+0x55e/0x7a0 fs/inode.c:1801
iput+0x5c/0x80 fs/inode.c:1791
dentry_unlink_inode+0x292/0x430 fs/dcache.c:401
__dentry_kill+0x3b8/0x640 fs/dcache.c:607
dentry_kill fs/dcache.c:733 [inline]
dput+0x8b7/0xf80 fs/dcache.c:913
__fput+0x3b9/0xbb0 fs/file_table.c:402
__fput_sync+0x47/0x50 fs/file_table.c:475
__do_sys_close fs/open.c:1590 [inline]
__se_sys_close fs/open.c:1575 [inline]
__x64_sys_close+0x87/0xf0 fs/open.c:1575
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f0bfac7b9da
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007f0bfb964e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f0bfac7b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000005514
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 00007f0bfb964f3c R14: 00007f0bfb964f40 R15: 00007f0bf13ff000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: f3 0f 1e fa endbr64
8: 48 8b 0c 24 mov (%rsp),%rcx
c: 48 89 f2 mov %rsi,%rdx
f: 48 89 fe mov %rdi,%rsi
12: bf 07 00 00 00 mov $0x7,%edi
17: e9 88 fe ff ff jmp 0xfffffea4
1c: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
23: 00
24: f3 0f 1e fa endbr64
28: 41 56 push %r14
* 2a: 41 55 push %r13 <-- trapping instruction
2c: 41 54 push %r12
2e: 49 89 fc mov %rdi,%r12
31: 55 push %rbp
32: 48 89 f5 mov %rsi,%rbp
35: 53 push %rbx
36: 48 8b 46 08 mov 0x8(%rsi),%rax
3a: 48 83 f8 20 cmp $0x20,%rax
3e: 74 63 je 0xa3