------------[ cut here ]------------ WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2749 pskb_may_pull_reason include/linux/skbuff.h:2749 [inline] WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2749 pskb_may_pull include/linux/skbuff.h:2765 [inline] WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2749 skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6054 Modules linked in: CPU: 0 PID: 5083 Comm: syz-executor312 Not tainted 6.9.0-rc5-syzkaller-01478-g7e2c7a3f732b #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:2749 [inline] RIP: 0010:pskb_may_pull include/linux/skbuff.h:2765 [inline] RIP: 0010:skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6054 Code: e8 46 c6 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 87 05 fe ff e8 22 c6 47 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 ce c7 47 f8 45 39 e6 RSP: 0018:ffffc90002d9f8f0 EFLAGS: 00010293 RAX: ffffffff894e562e RBX: ffff88802ca39780 RCX: ffff888022ccbc00 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffffffff894e5367 R09: 1ffffffff1f526d5 R10: dffffc0000000000 R11: ffffffffa00007dc R12: 00000000ffffffff R13: ffff88802ca39780 R14: ffffc90000ace030 R15: dffffc0000000000 FS: 0000555576aff380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002c80 CR3: 000000002296e000 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] 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_58dbbba81b71214e+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+0xafa/0x13a0 net/bpf/test_run.c:1066 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4286 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5700 __do_sys_bpf kernel/bpf/syscall.c:5789 [inline] __se_sys_bpf kernel/bpf/syscall.c:5787 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5787 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: 0033:0x7f071b9ac669 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe931b04e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ffe931b06b8 RCX: 00007f071b9ac669 RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a RBP: 00007f071ba1f610 R08: 0000000000000000 R09: 00007ffe931b06b8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe931b06a8 R14: 0000000000000001 R15: 0000000000000001 </TASK>