audit: type=1804 audit(2000000802.990:705): pid=4809 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/162/bus" dev="sda1" ino=16674 res=1
======================================================
audit: type=1400 audit(2000000803.020:706): avc: denied { write } for pid=4805 comm="syz-executor.3" path="socket:[281571]" dev="sockfs" ino=281571 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1
WARNING: possible circular locking dependency detected
4.19.86-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.4/4918 is trying to acquire lock:
00000000bbaa3c02 (&mm->mmap_sem){++++}, at: __might_fault+0xfb/0x1e0 mm/memory.c:4637
but task is already holding lock:
00000000541c7092 (&rp->fetch_lock){+.+.}, at: mon_bin_fetch+0x37/0x340 drivers/usb/mon/mon_bin.c:909
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&rp->fetch_lock){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
mon_bin_vma_fault+0x73/0x2d0 drivers/usb/mon/mon_bin.c:1237
__do_fault+0x111/0x480 mm/memory.c:3269
do_cow_fault mm/memory.c:3710 [inline]
do_fault mm/memory.c:3812 [inline]
handle_pte_fault mm/memory.c:4041 [inline]
__handle_mm_fault+0xf6d/0x3f80 mm/memory.c:4165
handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
faultin_page mm/gup.c:530 [inline]
__get_user_pages+0x609/0x17a0 mm/gup.c:730
populate_vma_page_range+0x20d/0x2a0 mm/gup.c:1234
__mm_populate+0x204/0x380 mm/gup.c:1282
mm_populate include/linux/mm.h:2323 [inline]
vm_mmap_pgoff+0x213/0x230 mm/util.c:362
ksys_mmap_pgoff+0x4aa/0x630 mm/mmap.c:1586
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline]
__x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 (&mm->mmap_sem){++++}:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__might_fault mm/memory.c:4638 [inline]
__might_fault+0x15e/0x1e0 mm/memory.c:4623
mon_bin_fetch+0x26f/0x340 drivers/usb/mon/mon_bin.c:928
mon_bin_ioctl+0x21e/0xc80 drivers/usb/mon/mon_bin.c:1091
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688
ksys_ioctl+0xab/0xd0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rp->fetch_lock);
lock(&mm->mmap_sem);
lock(&rp->fetch_lock);
lock(&mm->mmap_sem);
*** DEADLOCK ***
1 lock held by syz-executor.4/4918:
#0: 00000000541c7092 (&rp->fetch_lock){+.+.}, at: mon_bin_fetch+0x37/0x340 drivers/usb/mon/mon_bin.c:909
stack backtrace:
CPU: 1 PID: 4918 Comm: syz-executor.4 Not tainted 4.19.86-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221
check_prev_add kernel/locking/lockdep.c:1861 [inline]
check_prevs_add kernel/locking/lockdep.c:1974 [inline]
validate_chain kernel/locking/lockdep.c:2415 [inline]
__lock_acquire+0x2e19/0x49c0 kernel/locking/lockdep.c:3411
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__might_fault mm/memory.c:4638 [inline]
__might_fault+0x15e/0x1e0 mm/memory.c:4623
mon_bin_fetch+0x26f/0x340 drivers/usb/mon/mon_bin.c:928
mon_bin_ioctl+0x21e/0xc80 drivers/usb/mon/mon_bin.c:1091
audit: type=1804 audit(2000000803.420:707): pid=4934 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/162/bus" dev="sda1" ino=16674 res=1
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688
audit: type=1804 audit(2000000803.420:708): pid=4809 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/162/bus" dev="sda1" ino=16674 res=1
audit: type=1804 audit(2000000803.420:709): pid=4934 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/162/bus" dev="sda1" ino=16674 res=1
ksys_ioctl+0xab/0xd0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a679
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
audit: type=1804 audit(2000000803.420:710): pid=4936 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/163/bus" dev="sda1" ino=16674 res=1
RSP: 002b:00007f007a3cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679
RDX: 0000000020000140 RSI: 00000000c0109207 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f007a3ce6d4
R13: 00000000004c4246 R14: 00000000004d8cb8 R15: 00000000ffffffff
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
audit: type=1804 audit(2000000803.990:711): pid=4937 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir690455816/syzkaller.8K6KC7/163/bus" dev="sda1" ino=16674 res=1
net_ratelimit: 14 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
audit: type=1804 audit(2000000804.110:712): pid=4979 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="bus" dev="sda1" ino=16607 res=1
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (0000000095d9f267): kobject_uevent_env
kobject: 'loop0' (0000000095d9f267): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'input58' (00000000804e3eae): kobject_add_internal: parent: 'input', set: 'devices'
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'input58' (00000000804e3eae): kobject_uevent_env
kobject: 'input58' (00000000804e3eae): fill_kobj_path: path = '/devices/virtual/input/input58'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'input58' (00000000804e3eae): fill_kobj_path: path = '/devices/virtual/input/input58'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
input: syz1 as /devices/virtual/input/input58
kobject: 'event4' (00000000b7bf4d5b): kobject_add_internal: parent: 'input58', set: 'devices'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (00000000b7bf4d5b): kobject_uevent_env
kobject: 'event4' (00000000b7bf4d5b): fill_kobj_path: path = '/devices/virtual/input/input58/event4'
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000b7bf4d5b): kobject_uevent_env
kobject: 'event4' (00000000b7bf4d5b): fill_kobj_path: path = '/devices/virtual/input/input58/event4'
kobject: '(null)' (000000004854517b): kobject_cleanup, parent 00000000b7bf4d5b
kobject: '(null)' (000000004854517b): calling ktype release
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (00000000b7bf4d5b): kobject_cleanup, parent (null)
kobject: 'event4' (00000000b7bf4d5b): calling ktype release
kobject: 'event4': free name
kobject: 'input58' (00000000804e3eae): kobject_uevent_env
kobject: 'input58' (00000000804e3eae): fill_kobj_path: path = '/devices/virtual/input/input58'
kobject: 'input58' (00000000804e3eae): kobject_cleanup, parent (null)
kobject: 'input58' (00000000804e3eae): calling ktype release
kobject: 'input58': free name
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'input59' (00000000d41fc4b5): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'input59' (00000000d41fc4b5): kobject_uevent_env
kobject: 'input59' (00000000d41fc4b5): fill_kobj_path: path = '/devices/virtual/input/input59'
kobject: 'input59' (00000000d41fc4b5): fill_kobj_path: path = '/devices/virtual/input/input59'
input: syz1 as /devices/virtual/input/input59
kobject: 'event4' (00000000418b4e42): kobject_add_internal: parent: 'input59', set: 'devices'
kobject: 'event4' (00000000418b4e42): kobject_uevent_env
kobject: 'event4' (00000000418b4e42): fill_kobj_path: path = '/devices/virtual/input/input59/event4'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000418b4e42): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000418b4e42): fill_kobj_path: path = '/devices/virtual/input/input59/event4'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: '(null)' (0000000079a5d51b): kobject_cleanup, parent 00000000418b4e42
kobject: '(null)' (0000000079a5d51b): calling ktype release
kobject: 'event4' (00000000418b4e42): kobject_cleanup, parent (null)
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000418b4e42): calling ktype release
kobject: 'event4': free name
kobject: 'input59' (00000000d41fc4b5): kobject_uevent_env
kobject: 'input59' (00000000d41fc4b5): fill_kobj_path: path = '/devices/virtual/input/input59'
kobject: 'input59' (00000000d41fc4b5): kobject_cleanup, parent (null)
kobject: 'input59' (00000000d41fc4b5): calling ktype release
kobject: 'input59': free name
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'input60' (000000009530f40c): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input60' (000000009530f40c): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'input60' (000000009530f40c): fill_kobj_path: path = '/devices/virtual/input/input60'
kobject: 'input60' (000000009530f40c): fill_kobj_path: path = '/devices/virtual/input/input60'
input: syz1 as /devices/virtual/input/input60
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (000000009c0116a0): kobject_add_internal: parent: 'input60', set: 'devices'
kobject: 'input61' (00000000f9ef0367): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input61' (00000000f9ef0367): kobject_uevent_env
kobject: 'input61' (00000000f9ef0367): fill_kobj_path: path = '/devices/virtual/input/input61'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'input61' (00000000f9ef0367): fill_kobj_path: path = '/devices/virtual/input/input61'
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
input: syz1 as /devices/virtual/input/input61
kobject: 'event4' (000000009c0116a0): kobject_uevent_env
kobject: 'event4' (000000009c0116a0): fill_kobj_path: path = '/devices/virtual/input/input60/event4'
kobject: 'event5' (00000000aa2aa886): kobject_add_internal: parent: 'input61', set: 'devices'
kobject: 'event5' (00000000aa2aa886): kobject_uevent_env
kobject: 'event5' (00000000aa2aa886): fill_kobj_path: path = '/devices/virtual/input/input61/event5'
kobject: 'event5' (00000000aa2aa886): kobject_uevent_env
kobject: 'event5' (00000000aa2aa886): fill_kobj_path: path = '/devices/virtual/input/input61/event5'
kobject: '(null)' (0000000009a11cc7): kobject_cleanup, parent 00000000aa2aa886
kobject: '(null)' (0000000009a11cc7): calling ktype release
kobject: 'event5' (00000000aa2aa886): kobject_cleanup, parent (null)
kobject: 'event5' (00000000aa2aa886): calling ktype release
kobject: 'event5': free name
kobject: 'input61' (00000000f9ef0367): kobject_uevent_env
kobject: 'event4' (000000009c0116a0): kobject_uevent_env
kobject: 'input61' (00000000f9ef0367): fill_kobj_path: path = '/devices/virtual/input/input61'
kobject: 'event4' (000000009c0116a0): fill_kobj_path: path = '/devices/virtual/input/input60/event4'
kobject: 'input61' (00000000f9ef0367): kobject_cleanup, parent (null)
kobject: '(null)' (0000000027a9ac81): kobject_cleanup, parent 000000009c0116a0
kobject: 'input61' (00000000f9ef0367): calling ktype release
kobject: '(null)' (0000000027a9ac81): calling ktype release
kobject: 'input61': free name
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'event4' (000000009c0116a0): kobject_cleanup, parent (null)
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (000000009c0116a0): calling ktype release
kobject: 'event4': free name
kobject: 'input60' (000000009530f40c): kobject_uevent_env
kobject: 'input60' (000000009530f40c): fill_kobj_path: path = '/devices/virtual/input/input60'
kobject: 'input60' (000000009530f40c): kobject_cleanup, parent (null)
kobject: 'input60' (000000009530f40c): calling ktype release
kobject: 'input60': free name
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'input62' (000000001be3930e): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'input62' (000000001be3930e): kobject_uevent_env
kobject: 'input62' (000000001be3930e): fill_kobj_path: path = '/devices/virtual/input/input62'
kobject: 'input62' (000000001be3930e): fill_kobj_path: path = '/devices/virtual/input/input62'
kobject: 'input63' (0000000094fa118c): kobject_add_internal: parent: 'input', set: 'devices'
input: syz1 as /devices/virtual/input/input62
overlayfs: overlapping lowerdir path
kobject: 'event4' (0000000068f77bfb): kobject_add_internal: parent: 'input62', set: 'devices'
kobject: 'input63' (0000000094fa118c): kobject_uevent_env
kobject: 'event4' (0000000068f77bfb): kobject_uevent_env
kobject: 'event4' (0000000068f77bfb): fill_kobj_path: path = '/devices/virtual/input/input62/event4'
kobject: 'input63' (0000000094fa118c): fill_kobj_path: path = '/devices/virtual/input/input63'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'input63' (0000000094fa118c): fill_kobj_path: path = '/devices/virtual/input/input63'
input: syz1 as /devices/virtual/input/input63
kobject: 'event4' (0000000068f77bfb): kobject_uevent_env
kobject: 'event4' (0000000068f77bfb): fill_kobj_path: path = '/devices/virtual/input/input62/event4'
kobject: '(null)' (00000000c0a98ca0): kobject_cleanup, parent 0000000068f77bfb
kobject: 'input63' (0000000094fa118c): kobject_uevent_env
kobject: '(null)' (00000000c0a98ca0): calling ktype release
kobject: 'input63' (0000000094fa118c): fill_kobj_path: path = '/devices/virtual/input/input63'
kobject: 'input63' (0000000094fa118c): kobject_cleanup, parent (null)
overlayfs: overlapping lowerdir path
kobject: 'input63' (0000000094fa118c): calling ktype release
kobject: 'input63': free name
kobject: 'event4' (0000000068f77bfb): kobject_cleanup, parent (null)
kobject: 'event4' (0000000068f77bfb): calling ktype release
kobject: 'event4': free name
kobject: 'input62' (000000001be3930e): kobject_uevent_env
kobject: 'input62' (000000001be3930e): fill_kobj_path: path = '/devices/virtual/input/input62'
kobject: 'input62' (000000001be3930e): kobject_cleanup, parent (null)
kobject: 'input62' (000000001be3930e): calling ktype release
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'input62': free name
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
overlayfs: overlapping lowerdir path
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'input64' (00000000c3b6ff33): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'input64' (00000000c3b6ff33): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'input64' (00000000c3b6ff33): fill_kobj_path: path = '/devices/virtual/input/input64'
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
overlayfs: overlapping lowerdir path
kobject: 'input64' (00000000c3b6ff33): fill_kobj_path: path = '/devices/virtual/input/input64'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
input: syz1 as /devices/virtual/input/input64
kobject: 'event4' (00000000fa8ea886): kobject_add_internal: parent: 'input64', set: 'devices'
overlayfs: overlapping lowerdir path
kobject: 'event4' (00000000fa8ea886): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (00000000fa8ea886): fill_kobj_path: path = '/devices/virtual/input/input64/event4'
overlayfs: overlapping lowerdir path
kobject: 'event4' (00000000fa8ea886): kobject_uevent_env
kobject: 'event4' (00000000fa8ea886): fill_kobj_path: path = '/devices/virtual/input/input64/event4'
kobject: '(null)' (00000000f53b2016): kobject_cleanup, parent 00000000fa8ea886
kobject: '(null)' (00000000f53b2016): calling ktype release
kobject: 'event4' (00000000fa8ea886): kobject_cleanup, parent (null)
kobject: 'event4' (00000000fa8ea886): calling ktype release
kobject: 'event4': free name
kobject: 'input64' (00000000c3b6ff33): kobject_uevent_env
kobject: 'input64' (00000000c3b6ff33): fill_kobj_path: path = '/devices/virtual/input/input64'
kobject: 'input64' (00000000c3b6ff33): kobject_cleanup, parent (null)
kobject: 'input64' (00000000c3b6ff33): calling ktype release
kobject: 'input64': free name
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
overlayfs: overlapping lowerdir path
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
overlayfs: overlapping lowerdir path
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
overlayfs: overlapping lowerdir path
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
overlayfs: overlapping lowerdir path
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
net_ratelimit: 14 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000d4cd25dc): kobject_uevent_env
kobject: 'loop3' (00000000d4cd25dc): fill_kobj_path: path = '/devices/virtual/block/loop3'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'.
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000b23bfb4c): kobject_uevent_env
kobject: 'loop2' (00000000b23bfb4c): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000007c6580b4): kobject_uevent_env
kobject: 'loop4' (000000007c6580b4): fill_kobj_path: path = '/devices/virtual/block/loop4'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1