------------[ cut here ]------------ WARNING: CPU: 1 PID: 5095 at include/linux/skbuff.h:2738 pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] WARNING: CPU: 1 PID: 5095 at include/linux/skbuff.h:2738 pskb_may_pull include/linux/skbuff.h:2754 [inline] WARNING: CPU: 1 PID: 5095 at include/linux/skbuff.h:2738 skb_ensure_writable+0x2ef/0x440 net/core/skbuff.c:6100 Modules linked in: CPU: 1 PID: 5095 Comm: syz-executor380 Not tainted 6.9.0-syzkaller-05151-g1b294a1f3561 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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 d6 de 45 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 b2 de 45 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 5e e0 45 f8 45 39 e6 RSP: 0018:ffffc9000360f8f0 EFLAGS: 00010293 RAX: ffffffff89507e7e RBX: ffff88807a473280 RCX: ffff8880282cda00 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffffffff89507bb7 R09: 1ffffffff1f593a5 R10: dffffc0000000000 R11: ffffffffa0001acc R12: 00000000ffffffff R13: ffff88807a473280 R14: ffffc90000ace030 R15: dffffc0000000000 FS: 0000555569d65380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5c13b5f0d0 CR3: 000000007bb38000 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_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:4291 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5705 __do_sys_bpf kernel/bpf/syscall.c:5794 [inline] __se_sys_bpf kernel/bpf/syscall.c:5792 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5792 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: 0033:0x7f5c13ae7d39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffea65fd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5c13ae7d39 RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001