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TCP recvmsg seq # bug 2: copied C02C90D5, seq C02A9167, rcvnxt C02C1482, fl 10000
WARNING: CPU: 0 PID: 29888 at net/ipv4/tcp.c:2408 tcp_recvmsg_locked+0x7c9/0x25a0 net/ipv4/tcp.c:2406
Modules linked in:
CPU: 0 PID: 29888 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-05210-gd7d75124965a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:tcp_recvmsg_locked+0x7c9/0x25a0 net/ipv4/tcp.c:2406
Code: 28 84 c0 4c 8b a4 24 88 00 00 00 0f 85 27 01 00 00 8b 0a 48 c7 c7 40 69 a9 8c 44 89 f6 89 da 44 8b 44 24 34 e8 c8 4f 81 f7 90 <0f> 0b 90 90 e9 3f ff ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 24
RSP: 0018:ffffc900127cf8a0 EFLAGS: 00010246
RAX: 01ebb64e1060f500 RBX: 00000000c02a9167 RCX: ffff8880231e3c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900127cfa90 R08: ffffffff8157cc12 R09: 1ffff920024f9e68
R10: dffffc0000000000 R11: fffff520024f9e69 R12: ffff88802b5531e8
R13: dffffc0000000000 R14: 00000000c02c90d5 R15: ffff888072b01528
FS:  00007fa1cf36f6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 000000007323c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578
 inet_recvmsg+0x150/0x2d0 net/ipv4/af_inet.c:883
 sock_recvmsg_nosec net/socket.c:1046 [inline]
 sock_recvmsg+0x1ae/0x280 net/socket.c:1068
 __sys_recvfrom+0x256/0x3e0 net/socket.c:2242
 __do_sys_recvfrom net/socket.c:2260 [inline]
 __se_sys_recvfrom net/socket.c:2256 [inline]
 __x64_sys_recvfrom+0xde/0x100 net/socket.c:2256
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fa1ce67dda9
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:00007fa1cf36f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 00007fa1ce7abf80 RCX: 00007fa1ce67dda9
RDX: 0000000000001000 RSI: 0000000020001900 RDI: 0000000000000003
RBP: 00007fa1ce6ca47a R08: 0000000020000140 R09: 0000000000000010
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa1ce7abf80 R15: 00007ffcdf967db8
 </TASK>