audit: type=1400 audit(1575543697.765:408): avc: denied { map } for pid=27449 comm="syz-executor.5" path="/dev/usbmon0" dev="devtmpfs" ino=18124 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_file permissive=1 ====================================================== WARNING: possible circular locking dependency detected 4.19.88-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/27450 is trying to acquire lock: 0000000078ce9dea (&rp->fetch_lock){+.+.}, at: mon_bin_vma_fault+0x73/0x2d0 drivers/usb/mon/mon_bin.c:1237 but task is already holding lock: 000000000cacbbdb (&mm->mmap_sem){++++}, at: __mm_populate+0x270/0x380 mm/gup.c:1262 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_sem){++++}: __might_fault mm/memory.c:4638 [inline] __might_fault+0x15e/0x1e0 mm/memory.c:4623 _copy_to_user+0x30/0x120 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] mon_bin_read+0x329/0x640 drivers/usb/mon/mon_bin.c:825 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x490/0x640 fs/read_write.c:925 vfs_readv+0xf0/0x160 fs/read_write.c:987 do_readv+0x15e/0x370 fs/read_write.c:1020 __do_sys_readv fs/read_write.c:1107 [inline] __se_sys_readv fs/read_write.c:1104 [inline] __x64_sys_readv+0x75/0xb0 fs/read_write.c:1104 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&rp->fetch_lock){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __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+0x609/0x1860 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 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); *** DEADLOCK *** 1 lock held by syz-executor.5/27450: #0: 000000000cacbbdb (&mm->mmap_sem){++++}, at: __mm_populate+0x270/0x380 mm/gup.c:1262 stack backtrace: CPU: 0 PID: 27450 Comm: syz-executor.5 Not tainted 4.19.88-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 __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+0x609/0x1860 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 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 RSP: 002b:00007f8ca2753c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000045a679 RDX: 000000000100000f RSI: 0000000000400300 RDI: 0000000020a05000 RBP: 000000000075bf20 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000008012 R11: 0000000000000246 R12: 00007f8ca27546d4 R13: 00000000004c7861 R14: 00000000004de5a8 R15: 00000000ffffffff kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000429f7565): kobject_uevent_env audit: type=1804 audit(1575543699.475:409): pid=27533 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.4" name="/root/syzkaller-testdir562156407/syzkaller.1gnOCO/212/bus" dev="sda1" ino=16521 res=1 kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' audit: type=1804 audit(1575543699.585:410): pid=27521 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.4" name="/root/syzkaller-testdir562156407/syzkaller.1gnOCO/212/bus" dev="sda1" ino=16521 res=1 kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' audit: type=1800 audit(1575543699.625:411): pid=27529 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed comm="syz-executor.4" name="bus" dev="sda1" ino=16521 res=0 kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000429f7565): kobject_uevent_env audit: type=1800 audit(1575543699.625:412): pid=27521 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed comm="syz-executor.4" name="bus" dev="sda1" ino=16521 res=0 kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' audit: type=1804 audit(1575543700.715:413): pid=27574 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.0" name="/root/syzkaller-testdir245311236/syzkaller.Q4bIvj/431/bus" dev="sda1" ino=16545 res=1 audit: type=1804 audit(1575543700.755:414): pid=27576 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="/root/syzkaller-testdir702240757/syzkaller.LVBScC/410/bus" dev="sda1" ino=16642 res=1 audit: type=1804 audit(1575543700.795:415): pid=27575 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.2" name="/root/syzkaller-testdir607586424/syzkaller.IJbE0Y/223/bus" dev="sda1" ino=16562 res=1 audit: type=1804 audit(1575543700.865:416): pid=27577 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.4" name="/root/syzkaller-testdir562156407/syzkaller.1gnOCO/213/bus" dev="sda1" ino=16648 res=1 kobject: 'loop5' (00000000429f7565): kobject_uevent_env audit: type=1804 audit(1575543700.875:417): pid=27582 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.1" name="/root/syzkaller-testdir421242498/syzkaller.TkTAoh/444/bus" dev="sda1" ino=16510 res=1 kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kauditd_printk_skb: 5 callbacks suppressed audit: type=1804 audit(1575543703.405:423): pid=27682 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="/root/syzkaller-testdir702240757/syzkaller.LVBScC/412/bus" dev="sda1" ino=16547 res=1 kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' audit: type=1804 audit(1575543703.445:424): pid=27676 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.4" name="/root/syzkaller-testdir562156407/syzkaller.1gnOCO/215/bus" dev="sda1" ino=16534 res=1 audit: type=1804 audit(1575543703.475:425): pid=27696 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.1" name="/root/syzkaller-testdir421242498/syzkaller.TkTAoh/446/bus" dev="sda1" ino=16597 res=1 kobject: 'loop4' (0000000023fb2825): kobject_uevent_env audit: type=1804 audit(1575543703.575:427): pid=27692 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.2" name="/root/syzkaller-testdir607586424/syzkaller.IJbE0Y/225/bus" dev="sda1" ino=16563 res=1 kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' audit: type=1804 audit(1575543703.565:426): pid=27695 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.0" name="/root/syzkaller-testdir245311236/syzkaller.Q4bIvj/433/bus" dev="sda1" ino=16594 res=1 kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'ppp0' (00000000c7ff1f02): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'ppp0' (00000000c7ff1f02): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'ppp0' (00000000c7ff1f02): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 'syz-executor.2': attribute type 3 has an invalid length. kobject: 'queues' (0000000041d59ca4): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'queues' (0000000041d59ca4): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (0000000041d59ca4): kobject_uevent_env: filter function caused the event to drop! netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (00000000883241df): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'rx-0' (00000000883241df): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (00000000883241df): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (000000009275cb21): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000009275cb21): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'tx-0' (000000009275cb21): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'rx-0' (00000000883241df): kobject_cleanup, parent 0000000041d59ca4 kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'rx-0' (00000000883241df): auto cleanup 'remove' event kobject: 'rx-0' (00000000883241df): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (00000000883241df): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (00000000883241df): auto cleanup kobject_del kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'rx-0' (00000000883241df): calling ktype release kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0': free name kobject: 'tx-0' (000000009275cb21): kobject_cleanup, parent 0000000041d59ca4 kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'tx-0' (000000009275cb21): auto cleanup 'remove' event kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'tx-0' (000000009275cb21): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'tx-0' (000000009275cb21): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (000000009275cb21): auto cleanup kobject_del kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'tx-0' (000000009275cb21): calling ktype release kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0': free name kobject: 'queues' (0000000041d59ca4): kobject_cleanup, parent (null) kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'queues' (0000000041d59ca4): calling ktype release kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (0000000041d59ca4): kset_release kobject: 'queues': free name kobject: 'ppp0' (00000000c7ff1f02): kobject_uevent_env kobject: 'ppp0' (00000000c7ff1f02): fill_kobj_path: path = '/devices/virtual/net/ppp0' netlink: 'syz-executor.2': attribute type 3 has an invalid length. kobject: 'ppp0' (00000000c7ff1f02): kobject_cleanup, parent (null) netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'ppp0' (00000000c7ff1f02): calling ktype release kobject: 'ppp0': free name kobject: 'ppp0' (0000000005971e65): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'ppp0' (0000000005971e65): kobject_uevent_env kobject: 'ppp0' (0000000005971e65): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'queues' (00000000bbe80d0c): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (00000000bbe80d0c): kobject_uevent_env kobject: 'queues' (00000000bbe80d0c): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000007e88bd3a): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000007e88bd3a): kobject_uevent_env kobject: 'rx-0' (000000007e88bd3a): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (00000000fa37f232): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000fa37f232): kobject_uevent_env kobject: 'tx-0' (00000000fa37f232): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (000000007e88bd3a): kobject_cleanup, parent 00000000bbe80d0c kobject: 'rx-0' (000000007e88bd3a): auto cleanup 'remove' event kobject: 'rx-0' (000000007e88bd3a): kobject_uevent_env kobject: 'rx-0' (000000007e88bd3a): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'rx-0' (000000007e88bd3a): auto cleanup kobject_del kobject: 'rx-0' (000000007e88bd3a): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000fa37f232): kobject_cleanup, parent 00000000bbe80d0c kobject: 'tx-0' (00000000fa37f232): auto cleanup 'remove' event kobject: 'tx-0' (00000000fa37f232): kobject_uevent_env kobject: 'tx-0' (00000000fa37f232): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'tx-0' (00000000fa37f232): auto cleanup kobject_del kobject: 'tx-0' (00000000fa37f232): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000bbe80d0c): kobject_cleanup, parent (null) kobject: 'queues' (00000000bbe80d0c): calling ktype release kobject: 'queues' (00000000bbe80d0c): kset_release kobject: 'queues': free name kobject: 'ppp0' (0000000005971e65): kobject_uevent_env kobject: 'ppp0' (0000000005971e65): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'ppp0' (0000000005971e65): kobject_cleanup, parent (null) kobject: 'ppp0' (0000000005971e65): calling ktype release kobject: 'ppp0': free name kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 'syz-executor.4': attribute type 3 has an invalid length. kobject: 'ppp0' (00000000c54ab5d2): kobject_add_internal: parent: 'net', set: 'devices' netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'ppp0' (00000000c54ab5d2): kobject_uevent_env kobject: 'ppp0' (00000000c54ab5d2): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (00000000f8f7dfa5): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'queues' (00000000f8f7dfa5): kobject_uevent_env kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'queues' (00000000f8f7dfa5): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (0000000060c3629b): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (0000000060c3629b): kobject_uevent_env kobject: 'rx-0' (0000000060c3629b): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (000000007776a8cd): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000007776a8cd): kobject_uevent_env kobject: 'tx-0' (000000007776a8cd): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' netlink: 'syz-executor.2': attribute type 3 has an invalid length. kobject: 'ppp0' (00000000f12f14cd): kobject_add_internal: parent: 'net', set: 'devices' netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'ppp0' (00000000f12f14cd): kobject_uevent_env kobject: 'ppp0' (00000000f12f14cd): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'queues' (00000000b0e940bb): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'queues' (00000000b0e940bb): kobject_uevent_env kobject: 'queues' (00000000b0e940bb): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000003b580396): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'rx-0' (000000003b580396): kobject_uevent_env kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000003b580396): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (000000007203a4b9): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000007203a4b9): kobject_uevent_env kobject: 'tx-0' (000000007203a4b9): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 'syz-executor.4': attribute type 3 has an invalid length. kobject: 'rx-0' (0000000060c3629b): kobject_cleanup, parent 00000000f8f7dfa5 netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'rx-0' (0000000060c3629b): auto cleanup 'remove' event kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'rx-0' (0000000060c3629b): kobject_uevent_env kobject: 'rx-0' (0000000060c3629b): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (0000000060c3629b): auto cleanup kobject_del kobject: 'rx-0' (0000000060c3629b): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000007776a8cd): kobject_cleanup, parent 00000000f8f7dfa5 kobject: 'tx-0' (000000007776a8cd): auto cleanup 'remove' event kobject: 'tx-0' (000000007776a8cd): kobject_uevent_env kobject: 'tx-0' (000000007776a8cd): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env kobject: 'tx-0' (000000007776a8cd): auto cleanup kobject_del kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (000000007776a8cd): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000f8f7dfa5): kobject_cleanup, parent (null) kobject: 'queues' (00000000f8f7dfa5): calling ktype release kobject: 'queues' (00000000f8f7dfa5): kset_release kobject: 'queues': free name kobject: 'ppp0' (00000000c54ab5d2): kobject_uevent_env kobject: 'ppp0' (00000000c54ab5d2): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 'syz-executor.2': attribute type 3 has an invalid length. kobject: 'rx-0' (000000003b580396): kobject_cleanup, parent 00000000b0e940bb kobject: 'rx-0' (000000003b580396): auto cleanup 'remove' event kobject: 'rx-0' (000000003b580396): kobject_uevent_env kobject: 'rx-0' (000000003b580396): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000003b580396): auto cleanup kobject_del kobject: 'rx-0' (000000003b580396): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000007203a4b9): kobject_cleanup, parent 00000000b0e940bb kobject: 'tx-0' (000000007203a4b9): auto cleanup 'remove' event kobject: 'tx-0' (000000007203a4b9): kobject_uevent_env kobject: 'tx-0' (000000007203a4b9): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'tx-0' (000000007203a4b9): auto cleanup kobject_del kobject: 'tx-0' (000000007203a4b9): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000b0e940bb): kobject_cleanup, parent (null) kobject: 'queues' (00000000b0e940bb): calling ktype release kobject: 'queues' (00000000b0e940bb): kset_release kobject: 'queues': free name kobject: 'ppp0' (00000000f12f14cd): kobject_uevent_env kobject: 'ppp0' (00000000f12f14cd): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'ppp0' (00000000c54ab5d2): kobject_cleanup, parent (null) netlink: 'syz-executor.4': attribute type 3 has an invalid length. netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'ppp0' (00000000c54ab5d2): calling ktype release kobject: 'ppp0' (00000000f12f14cd): kobject_cleanup, parent (null) kobject: 'ppp0' (00000000f12f14cd): calling ktype release kobject: 'ppp0': free name kobject: 'ppp0': free name kobject: 'loop2' (00000000e8fb31c3): kobject_uevent_env kobject: 'loop2' (00000000e8fb31c3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000f46faa1e): kobject_uevent_env kobject: 'loop1' (00000000f46faa1e): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000841a3abd): kobject_uevent_env netlink: 'syz-executor.2': attribute type 3 has an invalid length. kobject: 'ppp0' (000000002fccc27b): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (00000000841a3abd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'ppp0' (000000002fccc27b): kobject_uevent_env netlink: 3582 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'ppp0' (000000002fccc27b): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'loop4' (0000000023fb2825): kobject_uevent_env kobject: 'queues' (000000004d164709): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'loop4' (0000000023fb2825): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000328d8dcd): kobject_uevent_env kobject: 'queues' (000000004d164709): kobject_uevent_env kobject: 'loop3' (00000000328d8dcd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (000000004d164709): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (00000000429f7565): kobject_uevent_env kobject: 'rx-0' (00000000403c4ec1): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (00000000429f7565): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (00000000403c4ec1): kobject_uevent_env kobject: 'rx-0' (00000000403c4ec1): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (00000000aa9e6d91): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000aa9e6d91): kobject_uevent_env kobject: 'tx-0' (00000000aa9e6d91): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'ppp0' (00000000b6a14ceb): kobject_add_internal: parent: 'net', set: 'devices'