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