netlink: 'syz-executor4': attribute type 29 has an invalid length.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 26065 Comm: kworker/0:1 Not tainted 4.20.0-rc2+ #294
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3245
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
RSP: 0018:ffff8881cdca75b0 EFLAGS: 00010206
netlink: 'syz-executor4': attribute type 3 has an invalid length.
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11031c9d519
RDX: 000000000000006a RSI: ffffffff861867af RDI: 0000000000000350
RBP: ffff8881cdca75e0 R08: ffff88818e4ea8c8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff88818e4ea000 R12: ffff8881cdca7690
R13: ffff888189d03080 R14: 0000000000000000 R15: ffff88818840fc78
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000072c000 CR3: 00000001bdef7000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:834 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1302
kobject: 'loop4' (0000000061566b44): kobject_uevent_env
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
kobject: 'loop4' (0000000061566b44): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (0000000068373560): kobject_uevent_env
kobject: 'loop3' (0000000068373560): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (0000000061566b44): kobject_uevent_env
kobject: 'loop4' (0000000061566b44): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (0000000068373560): kobject_uevent_env
kobject: 'loop3' (0000000068373560): fill_kobj_path: path = '/devices/virtual/block/loop3'
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
kobject: 'loop4' (0000000061566b44): kobject_uevent_env
kobject: 'loop4' (0000000061566b44): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (0000000068373560): kobject_uevent_env
kobject: 'loop3' (0000000068373560): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop3' (0000000068373560): kobject_uevent_env
kobject: 'loop3' (0000000068373560): fill_kobj_path: path = '/devices/virtual/block/loop3'
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace d6da9e331e9212bb ]---
kobject: 'loop2' (00000000a98bc115): kobject_uevent_env
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3245
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
IPv6: NLM_F_REPLACE set, but no existing node found!
RSP: 0018:ffff8881cdca75b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11031c9d519
RDX: 000000000000006a RSI: ffffffff861867af RDI: 0000000000000350
RBP: ffff8881cdca75e0 R08: ffff88818e4ea8c8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff88818e4ea000 R12: ffff8881cdca7690
R13: ffff888189d03080 R14: 0000000000000000 R15: ffff88818840fc78
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop2' (00000000a98bc115): fill_kobj_path: path = '/devices/virtual/block/loop2'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff87360e98 CR3: 00000001be17f000 CR4: 00000000001406f0
IPv6: NLM_F_REPLACE set, but no existing node found!
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop5' (0000000068bc78e6): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop5' (0000000068bc78e6): fill_kobj_path: path = '/devices/virtual/block/loop5'