------------[ cut here ]------------ WARNING: CPU: 1 PID: 8379 at include/linux/skbuff.h:2642 pskb_may_pull_reason include/linux/skbuff.h:2642 [inline] WARNING: CPU: 1 PID: 8379 at include/linux/skbuff.h:2642 pskb_may_pull include/linux/skbuff.h:2658 [inline] WARNING: CPU: 1 PID: 8379 at include/linux/skbuff.h:2642 skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5779 Modules linked in: CPU: 1 PID: 8379 Comm: syz.4.1294 Not tainted 6.1.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : pskb_may_pull_reason include/linux/skbuff.h:2642 [inline] pc : pskb_may_pull include/linux/skbuff.h:2658 [inline] pc : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5779 lr : pskb_may_pull_reason include/linux/skbuff.h:2642 [inline] lr : pskb_may_pull include/linux/skbuff.h:2658 [inline] lr : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5779 sp : ffff80001e6676d0 x29: ffff80001e6676d0 x28: 0000000000000001 x27: ffff80001e667770 x26: 0000000000000000 x25: ffff80001e667770 x24: 1ffff000037f5c06 x23: 1ffff00003cccf1c x22: dfff800000000000 x21: dfff800000000000 x20: 00000000fffffffe x19: ffff0000e85eaa00 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000084f9220 x15: 0000000000000002 x14: 1ffff00002b0a0b0 x13: dfff800000000000 x12: 0000000000040000 x11: 00000000000008ac x10: ffff800020ce9000 x9 : ffff800010406914 x8 : 00000000000008ad x7 : ffff800008404b00 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff80001e6675e0 x1 : 00000000fffffffe x0 : 0000000000000000 Call trace: pskb_may_pull_reason include/linux/skbuff.h:2642 [inline] pskb_may_pull include/linux/skbuff.h:2658 [inline] skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5779 __bpf_try_make_writable net/core/filter.c:1658 [inline] bpf_try_make_writable net/core/filter.c:1664 [inline] ____bpf_skb_pull_data net/core/filter.c:1844 [inline] bpf_skb_pull_data+0x80/0x210 net/core/filter.c:1833 bpf_prog_12bd3c84cb9ccb12+0x50/0x80 bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] bpf_test_run+0x370/0x870 net/bpf/test_run.c:402 bpf_prog_test_run_skb+0x8d8/0x1094 net/bpf/test_run.c:1180 bpf_prog_test_run+0x2dc/0x364 kernel/bpf/syscall.c:3670 __sys_bpf+0x390/0x654 kernel/bpf/syscall.c:5023 __do_sys_bpf kernel/bpf/syscall.c:5109 [inline] __se_sys_bpf kernel/bpf/syscall.c:5107 [inline] __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5107 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 318 hardirqs last enabled at (317): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (317): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (318): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (298): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (296): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---