syzbot

device syzkaller0 entered promiscuous mode
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WARNING: CPU: 1 PID: 4490 at include/linux/skbuff.h:2844 skb_transport_header include/linux/skbuff.h:2844 [inline]
WARNING: CPU: 1 PID: 4490 at include/linux/skbuff.h:2844 tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
WARNING: CPU: 1 PID: 4490 at include/linux/skbuff.h:2844 em_cmp_match+0x40c/0x5c0 net/sched/em_cmp.c:25
Modules linked in:
CPU: 1 PID: 4490 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : skb_transport_header include/linux/skbuff.h:2844 [inline]
pc : tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
pc : em_cmp_match+0x40c/0x5c0 net/sched/em_cmp.c:25
lr : skb_transport_header include/linux/skbuff.h:2844 [inline]
lr : tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
lr : em_cmp_match+0x40c/0x5c0 net/sched/em_cmp.c:25
sp : ffff800020bd6fc0
x29: ffff800020bd6fc0 x28: 0000000000000001 x27: 000000000000ffff
x26: 1fffe000199d5066 x25: 1fffe00019c11f21 x24: dfff800000000000
x23: 000000000000ffff x22: ffff0000ccea8336 x21: ffff0000ce08f90a
x20: ffff0000ccea8280 x19: ffff0000ce08f900 x18: 0000000000000000
x17: ffff800018338000 x16: ffff8000082eeb30 x15: 0000000000000000
x14: 0000000000000002 x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff008000100b822c x10: 0000000000000000 x9 : ffff8000100b822c
x8 : ffff0000d0f69bc0 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000020
x2 : 0000000000000000 x1 : 000000000000ffff x0 : 000000000000ffff
Call trace:
 skb_transport_header include/linux/skbuff.h:2844 [inline]
 tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
 em_cmp_match+0x40c/0x5c0 net/sched/em_cmp.c:25
 tcf_em_match net/sched/ematch.c:494 [inline]
 __tcf_em_tree_match+0x180/0x5e4 net/sched/ematch.c:520
 tcf_em_tree_match include/net/pkt_cls.h:502 [inline]
 basic_classify+0x138/0x30c net/sched/cls_basic.c:48
 __tcf_classify net/sched/cls_api.c:1569 [inline]
 tcf_classify+0x1b8/0x9c4 net/sched/cls_api.c:1635
 htb_classify net/sched/sch_htb.c:242 [inline]
 htb_enqueue+0x2fc/0xf04 net/sched/sch_htb.c:622
 dev_qdisc_enqueue+0x5c/0x388 net/core/dev.c:3875
 __dev_xmit_skb net/core/dev.c:3964 [inline]
 __dev_queue_xmit+0xaf8/0x3134 net/core/dev.c:4312
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3051
 packet_snd net/packet/af_packet.c:3127 [inline]
 packet_sendmsg+0x2f9c/0x3fd0 net/packet/af_packet.c:3158
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518
 ___sys_sendmsg net/socket.c:2572 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2601
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg net/socket.c:2608 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2608
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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: 4981
hardirqs last  enabled at (4979): [<ffff800011b072cc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (4979): [<ffff800011b072cc>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (4981): [<ffff800011a1c234>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (4966): [<ffff800008030954>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (4980): [<ffff80000fdc3444>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---