------------[ cut here ]------------
WARNING: CPU: 1 PID: 17671 at include/linux/skbuff.h:2738 pskb_may_pull_reason include/linux/skbuff.h:2738 [inline]
WARNING: CPU: 1 PID: 17671 at include/linux/skbuff.h:2738 pskb_may_pull include/linux/skbuff.h:2754 [inline]
WARNING: CPU: 1 PID: 17671 at include/linux/skbuff.h:2738 skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6100
Modules linked in:
CPU: 1 PID: 17671 Comm: syz-executor.2 Not tainted 6.9.0-rc6-syzkaller-01468-g173e7622ccb3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:pskb_may_pull_reason include/linux/skbuff.h:2738 [inline]
RIP: 0010:pskb_may_pull include/linux/skbuff.h:2754 [inline]
RIP: 0010:skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6100
Code: e8 c6 33 47 f8 4c 89 ef 31 f6 31 d2 b9 20 08 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 17 03 fe ff e8 a2 33 47 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 4e 35 47 f8 45 39 e6
RSP: 0018:ffffc9000aae73c0 EFLAGS: 00010287
RAX: ffffffff894ef6de RBX: 00000000fffffffc RCX: 0000000000040000
RDX: ffffc90014104000 RSI: 000000000000065e RDI: 000000000000065f
RBP: ffffc9000aae7448 R08: ffffffff894ef417 R09: 1ffffffff25e80a0
R10: dffffc0000000000 R11: ffffffffa000095c R12: 00000000fffffffc
R13: ffff88804fc0f4f0 R14: ffff88804fc0f4f0 R15: 1ffff11009f81ea9
FS:  00007f49f48786c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005740 CR3: 000000004edca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __bpf_try_make_writable net/core/filter.c:1668 [inline]
 sk_skb_try_make_writable net/core/filter.c:1891 [inline]
 ____sk_skb_pull_data net/core/filter.c:1905 [inline]
 sk_skb_pull_data+0x72/0xb0 net/core/filter.c:1894
 bpf_prog_d5be2879c9adc6dc+0x1d/0x1f
 bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
 __bpf_prog_run include/linux/filter.h:691 [inline]
 bpf_prog_run include/linux/filter.h:698 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:715 [inline]
 sk_psock_verdict_recv+0x2cd/0x590 net/core/skmsg.c:1199
 tcp_read_skb+0x474/0x650 net/ipv4/tcp.c:1647
 sk_psock_verdict_data_ready+0xab/0x390 net/core/skmsg.c:1223
 tcp_rcv_established+0x1531/0x2020 net/ipv4/tcp_input.c:6144
 tcp_v4_do_rcv+0x8ee/0xba0 net/ipv4/tcp_ipv4.c:1908
 sk_backlog_rcv include/net/sock.h:1106 [inline]
 __release_sock+0x214/0x350 net/core/sock.c:2983
 release_sock+0x61/0x1f0 net/core/sock.c:3549
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1349
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmmsg+0x3b2/0x740 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f49f3a7dca9
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:00007f49f48780c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f49f3babf80 RCX: 00007f49f3a7dca9
RDX: 0000000000000001 RSI: 0000000020005740 RDI: 0000000000000003
RBP: 00007f49f3ac947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000004d R14: 00007f49f3babf80 R15: 00007ffdcb4d0668
 </TASK>