------------[ cut here ]------------
WARNING: CPU: 0 PID: 22702 at net/mptcp/subflow.c:1405 subflow_data_ready+0x3a0/0x690 net/mptcp/subflow.c:1405
Modules linked in:
CPU: 0 PID: 22702 Comm: syz-executor.5 Not tainted 6.7.0-rc5-syzkaller-00167-gb1dfc0f76231 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:subflow_data_ready+0x3a0/0x690 net/mptcp/subflow.c:1405
Code: 89 ee e8 03 68 21 f7 40 84 ed 75 21 e8 c9 6c 21 f7 44 89 fe bf 07 00 00 00 e8 2c 68 21 f7 41 83 ff 07 74 09 e8 b1 6c 21 f7 90 <0f> 0b 90 e8 a8 6c 21 f7 48 89 df e8 50 b2 ff ff 31 ff 89 c5 89 c6
RSP: 0018:ffffc90000007598 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88807be43d40 RCX: ffffffff8a662144
RDX: ffff888021c58000 RSI: ffffffff8a66214f RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000007
R10: 000000000000000b R11: 0000000000000000 R12: 1ffff92000000eb3
R13: ffff88802098bac0 R14: ffff8880216ecc00 R15: 000000000000000b
FS: 00007f9d842f06c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31a45000 CR3: 000000001af59000 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:5150
tcp_data_queue+0x19c3/0x5190 net/ipv4/tcp_input.c:5230
tcp_rcv_state_process+0x11f1/0x4e20 net/ipv4/tcp_input.c:6866
tcp_v4_do_rcv+0x369/0xa10 net/ipv4/tcp_ipv4.c:1929
tcp_v4_rcv+0x3892/0x3b40 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+0x18e/0x1f0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1c4/0x2f0 net/ipv4/ip_input.c:449
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_rcv+0xaf/0xd0 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5529
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5643
process_backlog+0x101/0x6b0 net/core/dev.c:5971
__napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6533
napi_poll net/core/dev.c:6602 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6735
__do_softirq+0x21a/0x8de 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+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__set_page_owner_handle+0x141/0x3b0 mm/page_owner.c:170
Code: 00 00 e8 a2 81 a0 ff 48 8b 1d 5b 71 2f 0b 48 b8 00 00 00 00 00 fc ff df 4c 01 e3 48 8d 7b 08 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e db 01 00 00 8b 44 24 14 48 89 da 48 c1 ea
RSP: 0018:ffffc9001566efe0 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffff8880159b8ab0 RCX: ffffc9000b8c1000
RDX: 1ffff11002b37157 RSI: ffffffff81e70c5e RDI: ffff8880159b8ab8
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000002 R12: ffff8880159b8aa8
R13: 0000000005270217 R14: 0000000000000000 R15: 0000000000000000
__set_page_owner+0x48/0x60 mm/page_owner.c:197
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1537
prep_new_page mm/page_alloc.c:1544 [inline]
get_page_from_freelist+0xa25/0x36d0 mm/page_alloc.c:3312
__alloc_pages+0x22e/0x2420 mm/page_alloc.c:4568
alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
folio_alloc+0x1e/0xe0 mm/mempolicy.c:2211
filemap_alloc_folio+0x3bb/0x490 mm/filemap.c:974
page_cache_ra_unbounded+0x1ac/0x5f0 mm/readahead.c:247
do_page_cache_ra mm/readahead.c:299 [inline]
page_cache_ra_order+0x72b/0xa80 mm/readahead.c:546
ondemand_readahead+0x493/0x1130 mm/readahead.c:668
page_cache_sync_ra+0x174/0x1d0 mm/readahead.c:695
page_cache_sync_readahead include/linux/pagemap.h:1283 [inline]
filemap_get_pages+0xc06/0x1830 mm/filemap.c:2497
filemap_splice_read+0x3d0/0x9f0 mm/filemap.c:2860
ext4_file_splice_read+0xff/0x150 fs/ext4/file.c:158
vfs_splice_read fs/splice.c:993 [inline]
vfs_splice_read+0x2c8/0x3b0 fs/splice.c:962
splice_direct_to_actor+0x2a5/0xa30 fs/splice.c:1069
do_splice_direct+0x1af/0x280 fs/splice.c:1194
do_sendfile+0xb3e/0x1310 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64 fs/read_write.c:1308 [inline]
__x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f9d8367cba9
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:00007f9d842f00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f9d8379c120 RCX: 00007f9d8367cba9
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000009
RBP: 00007f9d836c847a R08: 0000000000000000 R09: 0000000000000000
R10: 00000000f03b0000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9d8379c120 R15: 00007ffd8b7baab8
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: e8 a2 81 a0 ff call 0xffa081a9
7: 48 8b 1d 5b 71 2f 0b mov 0xb2f715b(%rip),%rbx # 0xb2f7169
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 4c 01 e3 add %r12,%rbx
1b: 48 8d 7b 08 lea 0x8(%rbx),%rdi
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 74 08 je 0x36
2e: 3c 03 cmp $0x3,%al
30: 0f 8e db 01 00 00 jle 0x211
36: 8b 44 24 14 mov 0x14(%rsp),%eax
3a: 48 89 da mov %rbx,%rdx
3d: 48 rex.W
3e: c1 .byte 0xc1
3f: ea (bad)