------------[ cut here ]------------ WARNING: CPU: 1 PID: 7668 at include/linux/skbuff.h:2744 pskb_may_pull_reason include/linux/skbuff.h:2744 [inline] WARNING: CPU: 1 PID: 7668 at include/linux/skbuff.h:2744 pskb_may_pull include/linux/skbuff.h:2760 [inline] WARNING: CPU: 1 PID: 7668 at include/linux/skbuff.h:2744 skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6103 Modules linked in: CPU: 1 PID: 7668 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00772-g1ae7a19e3763 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:pskb_may_pull_reason include/linux/skbuff.h:2744 [inline] RIP: 0010:pskb_may_pull include/linux/skbuff.h:2760 [inline] RIP: 0010:skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6103 Code: e8 36 ae 43 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 a7 01 fe ff e8 12 ae 43 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 be af 43 f8 45 39 e6 RSP: 0018:ffffc90002f978f0 EFLAGS: 00010283 RAX: ffffffff895275de RBX: ffff88801e486dc0 RCX: 0000000000040000 RDX: ffffc9000adf9000 RSI: 0000000000000824 RDI: 0000000000000825 RBP: 00000000ffffffec R08: ffffffff89527317 R09: 1ffffffff1f5aa3d R10: dffffc0000000000 R11: ffffffffa0000ce4 R12: 00000000ffffffec R13: ffff88801e486dc0 R14: ffffc900034b1030 R15: dffffc0000000000 FS: 00007f1551be56c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2dc31000 CR3: 0000000056c8c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bpf_try_make_writable net/core/filter.c:1668 [inline] bpf_try_make_writable net/core/filter.c:1674 [inline] ____bpf_skb_pull_data net/core/filter.c:1865 [inline] bpf_skb_pull_data+0x7c/0x230 net/core/filter.c:1854 bpf_prog_8e36c0d26531b130+0x24/0x47 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_test_run+0x409/0x910 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0xc97/0x1820 net/bpf/test_run.c:1084 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4313 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5728 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 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: 0033:0x7f1550e7d0a9 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:00007f1551be50c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f1550fb4050 RCX: 00007f1550e7d0a9 RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a RBP: 00007f1550eec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f1550fb4050 R15: 00007ffc3ad3adf8