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: 20069 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #283
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:strlen+0x1f/0xa0 lib/string.c:479
Code: ff ff ff 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24
RSP: 0018:ffff880183b579b0 EFLAGS: 00010282
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90001e5c000
RDX: 0000000000000000 RSI: ffffffff81d29f9c RDI: 0000000000000000
RBP: ffff880183b579c8 R08: ffff880189bb2240 R09: 1ffffffff1273955
R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff89f3ed58 R15: 0000000000000000
FS:  00007f0c5af87700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33829000 CR3: 00000001c0dc7000 CR4: 00000000001406f0
DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 strlen include/linux/string.h:267 [inline]
 getname_kernel+0x24/0x370 fs/namei.c:218
 kern_path+0x1e/0x40 fs/namei.c:2434
 gfs2_mount_meta+0x85/0x2a0 fs/gfs2/ops_fstype.c:1336
 mount_fs+0xae/0x31d fs/super.c:1261
 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2457 [inline]
 do_mount+0x581/0x31f0 fs/namespace.c:2787
 ksys_mount+0x12d/0x140 fs/namespace.c:3003
 __do_sys_mount fs/namespace.c:3017 [inline]
 __se_sys_mount fs/namespace.c:3014 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0c5af86c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457569
RDX: 0000000020000040 RSI: 0000000020000380 RDI: 0000000000000000
RBP: 000000000072bf00 R08: 00000000200004c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0c5af876d4
R13: 00000000004c289b R14: 00000000004d3c78 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop4' (0000000008e8b04e): kobject_uevent_env
kobject: 'loop4' (0000000008e8b04e): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000b94326c3): kobject_uevent_env
kobject: 'loop3' (00000000b94326c3): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (0000000008e8b04e): kobject_uevent_env
kobject: 'loop4' (0000000008e8b04e): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000b94326c3): kobject_uevent_env
kobject: 'loop3' (00000000b94326c3): fill_kobj_path: path = '/devices/virtual/block/loop3'
---[ end trace 4cdc21f85416531f ]---
RIP: 0010:strlen+0x1f/0xa0 lib/string.c:479
Code: ff ff ff 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24
kobject: 'loop4' (0000000008e8b04e): kobject_uevent_env
kobject: 'loop4' (0000000008e8b04e): fill_kobj_path: path = '/devices/virtual/block/loop4'
RSP: 0018:ffff880183b579b0 EFLAGS: 00010282
kobject: 'loop1' (000000008695dcb3): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90001e5c000
kobject: 'loop1' (000000008695dcb3): fill_kobj_path: path = '/devices/virtual/block/loop1'
RDX: 0000000000000000 RSI: ffffffff81d29f9c RDI: 0000000000000000
kobject: 'rx-0' (00000000694869eb): kobject_cleanup, parent 0000000088913fe1
RBP: ffff880183b579c8 R08: ffff880189bb2240 R09: 1ffffffff1273955
kobject: 'rx-0' (00000000694869eb): auto cleanup 'remove' event
R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: 0000000000000000
kobject: 'rx-0' (00000000694869eb): kobject_uevent_env
kobject: 'rx-0' (00000000694869eb): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0'
R13: 0000000000000000 R14: ffffffff89f3ed58 R15: 0000000000000000
kobject: 'rx-0' (00000000694869eb): auto cleanup kobject_del
FS:  00007f0c5af87700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
kobject: 'rx-0' (00000000694869eb): calling ktype release
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'rx-0': free name
CR2: 00007f812355f000 CR3: 00000001c0dc7000 CR4: 00000000001406e0
kobject: 'tx-0' (000000001ffd660f): kobject_cleanup, parent 0000000088913fe1
DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'tx-0' (000000001ffd660f): auto cleanup 'remove' event
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'tx-0' (000000001ffd660f): kobject_uevent_env