------------[ cut here ]------------
WARNING: CPU: 0 PID: 4670 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4670 Comm: syz.1.94 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 6d f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f0 f3 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000006a48 EFLAGS: 00010246
RAX: ffffffff819ed660 RBX: 0000000000000000 RCX: ffff88805ce89dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8eed2008 R09: ffffffff8eed2018
R10: ffffffff8eed2010 R11: ffffffff8eed2003 R12: ffff88805ce8b548
R13: ffffc900010d6000 R14: ffffc90000006aa8 R15: 0000000000000000
FS: 00007f1e65ff66c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2eff1c CR3: 000000005aa48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_f2594087b0f175cc+0x32/0xda0
bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
__bpf_prog_run include/linux/filter.h:621 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline]
bpf_flow_dissect+0x33e/0x3f0 net/core/flow_dissector.c:896
__skb_flow_dissect+0x79f/0x5af0 net/core/flow_dissector.c:1024
skb_flow_dissect_flow_keys include/linux/skbuff.h:1390 [inline]
___skb_get_hash+0x55/0x680 net/core/flow_dissector.c:1583
__skb_get_hash+0xb4/0x220 net/core/flow_dissector.c:1648
skb_get_hash include/linux/skbuff.h:1432 [inline]
udp_flow_src_port include/net/udp.h:230 [inline]
geneve6_xmit_skb drivers/net/geneve.c:1031 [inline]
geneve_xmit+0x883/0x3070 drivers/net/geneve.c:1116
__netdev_start_xmit include/linux/netdevice.h:5027 [inline]
netdev_start_xmit include/linux/netdevice.h:5041 [inline]
xmit_one net/core/dev.c:3649 [inline]
dev_hard_start_xmit+0x2a5/0x7e0 net/core/dev.c:3665
__dev_queue_xmit+0x19df/0x2ed0 net/core/dev.c:4288
neigh_hh_output include/net/neighbour.h:493 [inline]
neigh_output include/net/neighbour.h:507 [inline]
ip6_finish_output2+0x1035/0x1500 net/ipv6/ip6_output.c:130
dst_output include/net/dst.h:452 [inline]
NF_HOOK include/linux/netfilter.h:302 [inline]
ndisc_send_skb+0xbea/0x14a0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3956
call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1496 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:lock_is_held_type+0x4c/0x190 kernel/locking/lockdep.c:5659
Code: 3d 2c 98 c0 03 00 0f 84 03 01 00 00 65 8b 05 1b 48 59 76 85 c0 0f 85 f4 00 00 00 65 48 8b 1d 8b 3e 59 76 83 bb ec 0a 00 00 00 <0f> 85 df 00 00 00 41 89 f7 49 89 fe 48 c7 04 24 00 00 00 00 9c 8f
RSP: 0018:ffffc9000347e318 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88805ce89dc0 RCX: ffff88805ce89dc0
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8c11c720
RBP: 00000000ffffffff R08: dffffc0000000000 R09: ffffed100c40fd97
R10: ffffed100c40fd97 R11: 1ffff1100c40fd96 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888060da52e8 R15: ffff888060da52b8
lock_is_held include/linux/lockdep.h:287 [inline]
___might_sleep+0xf2/0x600 kernel/sched/core.c:9624
down_write+0x17/0x60 kernel/locking/rwsem.c:1550
kernfs_add_one+0x52/0x6c0 fs/kernfs/dir.c:747
kernfs_create_link+0x160/0x200 fs/kernfs/symlink.c:49
sysfs_do_create_link_sd+0x83/0x110 fs/sysfs/symlink.c:44
__netdev_adjacent_dev_insert+0x35d/0x8a0 net/core/dev.c:8035
__netdev_adjacent_dev_link_lists net/core/dev.c:8105 [inline]
__netdev_adjacent_dev_link_neighbour net/core/dev.c:8134 [inline]
__netdev_upper_dev_link+0x33e/0x580 net/core/dev.c:8194
netdev_master_upper_dev_link+0xad/0xf0 net/core/dev.c:8269
team_upper_dev_link drivers/net/team/team.c:1116 [inline]
team_port_add drivers/net/team/team.c:1252 [inline]
team_add_slave+0xf71/0x2660 drivers/net/team/team.c:1990
do_set_master net/core/rtnetlink.c:2575 [inline]
do_setlink+0xd84/0x3980 net/core/rtnetlink.c:2786
__rtnl_newlink net/core/rtnetlink.c:3450 [inline]
rtnl_newlink+0x1419/0x17d0 net/core/rtnetlink.c:3572
rtnetlink_rcv_msg+0x9b9/0xe60 net/core/rtnetlink.c:5650
netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2507
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x8ab/0xbc0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2436
___sys_sendmsg+0x1f0/0x260 net/socket.c:2490
__sys_sendmsg net/socket.c:2519 [inline]
__do_sys_sendmsg net/socket.c:2528 [inline]
__se_sys_sendmsg+0x190/0x250 net/socket.c:2526
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1e67d8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1e65ff6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1e67fe5fa0 RCX: 00007f1e67d8eec9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000004
RBP: 00007f1e67e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1e67fe6038 R14: 00007f1e67fe5fa0 R15: 00007fff9786e438
----------------
Code disassembly (best guess):
0: 3d 2c 98 c0 03 cmp $0x3c0982c,%eax
5: 00 0f add %cl,(%rdi)
7: 84 03 test %al,(%rbx)
9: 01 00 add %eax,(%rax)
b: 00 65 8b add %ah,-0x75(%rbp)
e: 05 1b 48 59 76 add $0x7659481b,%eax
13: 85 c0 test %eax,%eax
15: 0f 85 f4 00 00 00 jne 0x10f
1b: 65 48 8b 1d 8b 3e 59 mov %gs:0x76593e8b(%rip),%rbx # 0x76593eae
22: 76
23: 83 bb ec 0a 00 00 00 cmpl $0x0,0xaec(%rbx)
* 2a: 0f 85 df 00 00 00 jne 0x10f <-- trapping instruction
30: 41 89 f7 mov %esi,%r15d
33: 49 89 fe mov %rdi,%r14
36: 48 c7 04 24 00 00 00 movq $0x0,(%rsp)
3d: 00
3e: 9c pushf
3f: 8f .byte 0x8f