device syzkaller0 entered promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 19918 at include/linux/skbuff.h:2844 skb_transport_header include/linux/skbuff.h:2844 [inline]
WARNING: CPU: 0 PID: 19918 at include/linux/skbuff.h:2844 tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
WARNING: CPU: 0 PID: 19918 at include/linux/skbuff.h:2844 em_nbyte_match+0x2cc/0x3e0 net/sched/em_nbyte.c:43
Modules linked in:
CPU: 0 PID: 19918 Comm: syz.2.4732 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:skb_transport_header include/linux/skbuff.h:2844 [inline]
RIP: 0010:tcf_get_base_ptr include/net/pkt_cls.h:529 [inline]
RIP: 0010:em_nbyte_match+0x2cc/0x3e0 net/sched/em_nbyte.c:43
Code: c0 eb 07 e8 16 2f 1b f9 31 c0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 00 2f 1b f9 0f 0b e9 e5 fe ff ff e8 f4 2e 1b f9 <0f> 0b e9 00 fe ff ff 89 d1 80 e1 07 fe c1 38 c1 0f 8c 7a fd ff ff
RSP: 0018:ffffc90003f37118 EFLAGS: 00010283
RAX: ffffffff8867437c RBX: ffff8880560e0dc0 RCX: 0000000000080000
RDX: ffffc9001c0d1000 RSI: 00000000000004e4 RDI: 00000000000004e5
RBP: 000000000000ffff R08: ffff88802e230000 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000002 R12: dffffc0000000000
R13: 1ffff1100ac1c1ce R14: ffff888058ebe8e8 R15: 1ffff1100b1d7d1d
FS:  00007fbf953d86c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002280 CR3: 00000000626c0000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 tcf_em_match net/sched/ematch.c:494 [inline]
 __tcf_em_tree_match+0x1cb/0x7a0 net/sched/ematch.c:520
 tcf_em_tree_match include/net/pkt_cls.h:502 [inline]
 basic_classify+0x111/0x2c0 net/sched/cls_basic.c:48
 __tcf_classify net/sched/cls_api.c:1569 [inline]
 tcf_classify+0x331/0xbf0 net/sched/cls_api.c:1635
 multiq_classify net/sched/sch_multiq.c:39 [inline]
 multiq_enqueue+0xfb/0x4b0 net/sched/sch_multiq.c:66
 dev_qdisc_enqueue+0x4c/0x2b0 net/core/dev.c:3875
 __dev_xmit_skb net/core/dev.c:3964 [inline]
 __dev_queue_xmit+0xfdc/0x37f0 net/core/dev.c:4312
 packet_snd net/packet/af_packet.c:3127 [inline]
 packet_sendmsg+0x3bc3/0x4e60 net/packet/af_packet.c:3158
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5be/0x970 net/socket.c:2518
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2572
 __sys_sendmsg net/socket.c:2601 [inline]
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg+0x1bb/0x2a0 net/socket.c:2608
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbf9459acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbf953d8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbf94815fa0 RCX: 00007fbf9459acb9
RDX: 0000000000000004 RSI: 00002000000000c0 RDI: 0000000000000007
RBP: 00007fbf94608bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbf94816038 R14: 00007fbf94815fa0 R15: 00007fff4ae46fb8
 </TASK>