------------[ cut here ]------------ WARNING: CPU: 1 PID: 4227 at include/linux/skbuff.h:2641 pskb_may_pull include/linux/skbuff.h:2641 [inline] WARNING: CPU: 1 PID: 4227 at include/linux/skbuff.h:2641 skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5768 Modules linked in: CPU: 1 PID: 4227 Comm: syz-executor134 Not tainted 6.1.86-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : pskb_may_pull include/linux/skbuff.h:2641 [inline] pc : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5768 lr : pskb_may_pull include/linux/skbuff.h:2641 [inline] lr : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5768 sp : ffff80001dbb76c0 x29: ffff80001dbb76c0 x28: 0000000000000001 x27: ffff80001dbb7768 x26: 0000000000000000 x25: ffff80001dbb7770 x24: 1ffff000033dfc06 x23: 1ffff00003b76f1c x22: dfff800000000000 x21: dfff800000000000 x20: 0000000080000000 x19: ffff0000d7856c80 x18: 0000000000000000 x17: ffff8000085ac4c0 x16: ffff8000084fae8c x15: 0000000000000000 x14: 1ffff00002b080b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800010403c68 x8 : ffff0000d4cd8000 x7 : ffff800008406774 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff80001dbb75e0 x1 : 0000000080000000 x0 : 0000000000000000 Call trace: pskb_may_pull include/linux/skbuff.h:2641 [inline] skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:5768 __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_ae7213afad14896d+0x54/0xc0 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: 15096 hardirqs last enabled at (15095): [] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] hardirqs last enabled at (15095): [] timekeeping_get_delta kernel/time/timekeeping.c:254 [inline] hardirqs last enabled at (15095): [] timekeeping_get_ns+0x124/0x3b8 kernel/time/timekeeping.c:388 hardirqs last disabled at (15096): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (15070): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (15070): [] bpf_ksym_add+0x2f0/0x320 kernel/bpf/core.c:649 softirqs last disabled at (15068): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (15068): [] bpf_ksym_add+0x40/0x320 kernel/bpf/core.c:645 ---[ end trace 0000000000000000 ]---