------------[ cut here ]------------ WARNING: CPU: 0 PID: 8556 at include/linux/skbuff.h:4222 skb_set_delivery_type_by_clockid include/linux/skbuff.h:4222 [inline] WARNING: CPU: 0 PID: 8556 at include/linux/skbuff.h:4222 __ip_make_skb+0x1283/0x1eb0 net/ipv4/ip_output.c:1463 Modules linked in: CPU: 0 PID: 8556 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-12123-g531876c80004 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:skb_set_delivery_type_by_clockid include/linux/skbuff.h:4222 [inline] RIP: 0010:__ip_make_skb+0x1283/0x1eb0 net/ipv4/ip_output.c:1463 Code: 00 00 00 00 fc ff df 4c 8b 64 24 20 eb 7d e8 04 09 b1 f7 49 bf 00 00 00 00 00 fc ff df 4c 8b 64 24 20 eb 64 e8 ee 08 b1 f7 90 <0f> 0b 90 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 RSP: 0018:ffffc90003027248 EFLAGS: 00010287 RAX: ffffffff89e50b92 RBX: 00000000000000ff RCX: 0000000000040000 RDX: ffffc9000a153000 RSI: 0000000000000d23 RDI: 0000000000000d24 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff89e50ab1 R10: 0000000000000003 R11: ffff88802c3a5a00 R12: ffff88802b205140 R13: 1ffff1100fe450c2 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fba9fcb16c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32e21000 CR3: 00000000589a0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ip_make_skb+0x304/0x420 net/ipv4/ip_output.c:1569 udp_sendmsg+0x1bef/0x2a60 net/ipv4/udp.c:1263 udpv6_sendmsg+0x1383/0x3270 net/ipv6/udp.c:1399 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fba9ee7cee9 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:00007fba9fcb10c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fba9efb3fa0 RCX: 00007fba9ee7cee9 RDX: 0000000000000000 RSI: 0000000020000840 RDI: 0000000000000003 RBP: 00007fba9eec947f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fba9efb3fa0 R15: 00007ffd0ca87cc8