====================================================== audit: type=1400 audit(1574725225.474:447): avc: denied { map } for pid=27934 comm="syz-executor.2" path="/dev/usbmon0" dev="devtmpfs" ino=559 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 4.19.86-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/28055 is trying to acquire lock: 0000000018bf4156 (&rp->fetch_lock){+.+.}, at: mon_bin_vma_fault+0x73/0x2d0 drivers/usb/mon/mon_bin.c:1237 but task is already holding lock: kobject: 'loop4' (00000000c008959d): kobject_uevent_env 00000000d1721874 kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' (&mm->mmap_sem){++++}, at: __do_page_fault+0x3c9/0xe90 arch/x86/mm/fault.c:1319 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_read_fault mm/memory.c:3681 [inline] do_fault mm/memory.c:3810 [inline] handle_pte_fault mm/memory.c:4041 [inline] __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204 fault_in_pages_readable include/linux/pagemap.h:601 [inline] iov_iter_fault_in_readable+0x1ba/0x450 lib/iov_iter.c:421 generic_perform_write+0x186/0x520 mm/filemap.c:3152 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3287 generic_file_write_iter+0x383/0x72f mm/filemap.c:3315 call_write_iter include/linux/fs.h:1820 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x587/0x810 fs/read_write.c:487 vfs_write+0x20c/0x560 fs/read_write.c:549 ksys_write+0x14f/0x2d0 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 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 *** 3 locks held by syz-executor.2/28055: #0: 000000004e5a4b1c (sb_writers#6){.+.+}, at: file_start_write include/linux/fs.h:2775 [inline] #0: 000000004e5a4b1c (sb_writers#6){.+.+}, at: vfs_write+0x429/0x560 fs/read_write.c:548 #1: 000000009acc647d (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #1: 000000009acc647d (&sb->s_type->i_mutex_key#12){+.+.}, at: generic_file_write_iter+0x9a/0x72f mm/filemap.c:3312 #2: 00000000d1721874 (&mm->mmap_sem){++++}, at: __do_page_fault+0x3c9/0xe90 arch/x86/mm/fault.c:1319 stack backtrace: CPU: 1 PID: 28055 Comm: syz-executor.2 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 __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_read_fault mm/memory.c:3681 [inline] do_fault mm/memory.c:3810 [inline] handle_pte_fault mm/memory.c:4041 [inline] __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204 RIP: 0010:fault_in_pages_readable include/linux/pagemap.h:601 [inline] RIP: 0010:iov_iter_fault_in_readable+0x1ba/0x450 lib/iov_iter.c:421 Code: 4c 39 f3 76 17 eb 3b e8 e4 f7 48 fe 48 81 c3 00 10 00 00 48 39 9d 68 ff ff ff 72 2d e8 cf f7 48 fe 0f 1f 00 0f ae e8 45 31 f6 <8a> 13 0f 1f 00 31 ff 44 89 f6 41 88 57 d0 e8 33 f9 48 fe 45 85 f6 RSP: 0018:ffff888011c57a08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000020001080 RCX: ffffc900118d9000 RDX: 00000000000001ab RSI: ffffffff832227a1 RDI: 0000000000000005 RBP: ffff888011c57aa8 R08: ffff888044de8040 R09: ffffed1010e39edf R10: ffffed1010e39ede R11: ffff8880871cf6f3 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000000 R15: ffff888011c57a80 generic_perform_write+0x186/0x520 mm/filemap.c:3152 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3287 generic_file_write_iter+0x383/0x72f mm/filemap.c:3315 call_write_iter include/linux/fs.h:1820 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x587/0x810 fs/read_write.c:487 vfs_write+0x20c/0x560 fs/read_write.c:549 ksys_write+0x14f/0x2d0 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a639 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:00007ffbba5c9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000001 RSI: 0000000020001080 RDI: 0000000000000004 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffbba5ca6d4 R13: 00000000004caae3 R14: 00000000004e2ec8 R15: 00000000ffffffff protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' nla_parse: 9 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000c008959d): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' net_ratelimit: 14 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 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' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' nla_parse: 40 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' net_ratelimit: 11 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 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: 'loop5' (000000002ccab9be): kobject_uevent_env kobject: 'loop5' (000000002ccab9be): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c008959d): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c008959d): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (0000000082ce28e8): kobject_uevent_env kobject: 'loop2' (0000000082ce28e8): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c008959d): kobject_uevent_env kobject: 'loop4' (00000000c008959d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000e045d7bd): kobject_uevent_env kobject: 'loop3' (00000000e045d7bd): fill_kobj_path: path = '/devices/virtual/block/loop3'