------------[ cut here ]------------ WARNING: CPU: 1 PID: 6237 at include/linux/skbuff.h:2735 pskb_may_pull_reason include/linux/skbuff.h:2735 [inline] WARNING: CPU: 1 PID: 6237 at include/linux/skbuff.h:2735 pskb_may_pull include/linux/skbuff.h:2751 [inline] WARNING: CPU: 1 PID: 6237 at include/linux/skbuff.h:2735 skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 Modules linked in: CPU: 1 PID: 6237 Comm: syz-executor117 Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #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_reason include/linux/skbuff.h:2735 [inline] pc : pskb_may_pull include/linux/skbuff.h:2751 [inline] pc : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 lr : pskb_may_pull_reason include/linux/skbuff.h:2735 [inline] lr : pskb_may_pull include/linux/skbuff.h:2751 [inline] lr : skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 sp : ffff80009e5976c0 x29: ffff80009e5976c0 x28: 0000000000000001 x27: ffff80009e597768 x26: 0000000000000000 x25: ffff80009e597770 x24: 1ffff000127a5c06 x23: 1ffff00013cb2f1c x22: dfff800000000000 x21: dfff800000000000 x20: 0000000080000000 x19: ffff0000c1f04b40 x18: ffff80009e5973c0 x17: 000000000000c2ff x16: ffff800080554304 x15: 0000000000000001 x14: ffff80008ee80668 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d672dac0 x7 : ffff800080448c6c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000d672dac0 x1 : 0000000080000000 x0 : 0000000000000000 Call trace: pskb_may_pull_reason include/linux/skbuff.h:2735 [inline] pskb_may_pull include/linux/skbuff.h:2751 [inline] skb_ensure_writable+0x26c/0x3a8 net/core/skbuff.c:6100 __bpf_try_make_writable net/core/filter.c:1665 [inline] bpf_try_make_writable net/core/filter.c:1671 [inline] ____bpf_skb_pull_data net/core/filter.c:1862 [inline] bpf_skb_pull_data+0x80/0x210 net/core/filter.c:1851 bpf_prog_ae7213afad14896d+0x54/0xc0 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x374/0x87c net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x8d4/0x1090 net/bpf/test_run.c:1058 bpf_prog_test_run+0x2dc/0x364 kernel/bpf/syscall.c:4269 __sys_bpf+0x314/0x5f0 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5765 __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: 11255 hardirqs last enabled at (11253): [] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:74 hardirqs last disabled at (11255): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (11218): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (11218): [] bpf_ksym_add+0x2f0/0x320 kernel/bpf/core.c:663 softirqs last disabled at (11254): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---