------------[ cut here ]------------ WARNING: CPU: 1 PID: 11237 at include/linux/skbuff.h:2738 pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] WARNING: CPU: 1 PID: 11237 at include/linux/skbuff.h:2738 pskb_may_pull include/linux/skbuff.h:2754 [inline] WARNING: CPU: 1 PID: 11237 at include/linux/skbuff.h:2738 skb_ensure_writable+0x376/0x450 net/core/skbuff.c:6100 Modules linked in: CPU: 1 PID: 11237 Comm: syz-executor.4 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #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:2738 [inline] RIP: 0010:pskb_may_pull include/linux/skbuff.h:2754 [inline] RIP: 0010:skb_ensure_writable+0x376/0x450 net/core/skbuff.c:6100 Code: d2 0f 85 b9 00 00 00 44 0f b7 63 7a 89 ef 44 89 e6 e8 ee 0c cf f8 41 39 ec 0f 83 83 fd ff ff e9 61 ff ff ff e8 9b 12 cf f8 90 <0f> 0b 90 e9 af fc ff ff e8 8d 12 cf f8 44 89 e6 89 ef e8 c3 0c cf RSP: 0018:ffffc900034ff818 EFLAGS: 00010287 RAX: 00000000000017ff RBX: ffff88802f1cdc80 RCX: ffffc90009e3b000 RDX: 0000000000040000 RSI: ffffffff88bed2b5 RDI: 0000000000000005 RBP: 00000000fffffffe R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffffe R11: 0000000000000001 R12: 00000000fffffffe R13: ffffffff88cfc900 R14: ffff88802f1cdcf4 R15: ffff88802f1cdcf0 FS: 00007f9d64ec76c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32b25000 CR3: 000000004e3fa000 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+0x45/0x280 net/core/filter.c:1854 ___bpf_prog_run+0x3e51/0xabd0 kernel/bpf/core.c:2012 __bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2253 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+0x3df/0x9a0 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0xb17/0x1db0 net/bpf/test_run.c:1072 bpf_prog_test_run kernel/bpf/syscall.c:4292 [inline] __sys_bpf+0x10d2/0x49a0 kernel/bpf/syscall.c:5706 __do_sys_bpf kernel/bpf/syscall.c:5795 [inline] __se_sys_bpf kernel/bpf/syscall.c:5793 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5793 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d6407cf29 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:00007f9d64ec70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f9d641b3f80 RCX: 00007f9d6407cf29 RDX: 0000000000000048 RSI: 0000000020000200 RDI: 000000000000000a RBP: 00007f9d640ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9d641b3f80 R15: 00007ffc91ce1108