------------[ cut here ]------------ WARNING: CPU: 1 PID: 7521 at include/linux/skbuff.h:2738 pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] WARNING: CPU: 1 PID: 7521 at include/linux/skbuff.h:2738 pskb_may_pull include/linux/skbuff.h:2754 [inline] WARNING: CPU: 1 PID: 7521 at include/linux/skbuff.h:2738 skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 Modules linked in: CPU: 1 PID: 7521 Comm: syz.3.318 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] pc : pskb_may_pull include/linux/skbuff.h:2754 [inline] pc : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 lr : pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] lr : pskb_may_pull include/linux/skbuff.h:2754 [inline] lr : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 sp : ffff80009fef76d0 x29: ffff80009fef76d0 x28: 0000000000000001 x27: ffff80009fef7770 x26: 0000000000000000 x25: ffff80009fef7770 x24: 1ffff00013707a06 x23: 1ffff00013fdef1c x22: dfff800000000000 x21: dfff800000000000 x20: 00000000fffa0000 x19: ffff0000ea1b7280 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008055a9d4 x15: 0000000000000003 x14: ffff80008f3c0558 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000040000 x10: 00000000000004d1 x9 : ffff80009f97e000 x8 : 00000000000004d2 x7 : ffff80008044e140 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000c5299e40 x1 : 00000000fffa0000 x0 : 0000000000000000 Call trace: pskb_may_pull_reason include/linux/skbuff.h:2738 [inline] pskb_may_pull include/linux/skbuff.h:2754 [inline] skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 __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+0x80/0x210 net/core/filter.c:1854 bpf_prog_7c10db155c4523b8+0x54/0x88 bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline] __bpf_prog_run include/linux/filter.h:682 [inline] bpf_prog_run include/linux/filter.h:698 [inline] bpf_test_run+0x588/0x890 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x8d4/0x1090 net/bpf/test_run.c:1066 bpf_prog_test_run+0x2dc/0x364 kernel/bpf/syscall.c:4291 __sys_bpf+0x314/0x5f0 kernel/bpf/syscall.c:5705 __do_sys_bpf kernel/bpf/syscall.c:5794 [inline] __se_sys_bpf kernel/bpf/syscall.c:5792 [inline] __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5792 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 445 hardirqs last enabled at (443): [] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:74 hardirqs last disabled at (445): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (430): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (444): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---