====================================================== WARNING: possible circular locking dependency detected 4.19.86-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/28800 is trying to acquire lock: 00000000b38056f3 (&mm->mmap_sem){++++}, at: __might_fault+0xfb/0x1e0 mm/memory.c:4637 but task is already holding lock: 00000000819c3b5a (&rp->fetch_lock){+.+.}, at: mon_bin_read+0x60/0x640 drivers/usb/mon/mon_bin.c:813 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 _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 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.3/28800: #0: 00000000819c3b5a (&rp->fetch_lock){+.+.}, at: mon_bin_read+0x60/0x640 drivers/usb/mon/mon_bin.c:813 stack backtrace: CPU: 1 PID: 28800 Comm: syz-executor.3 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 _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 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:00007fdbb3995c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000002 RSI: 0000000020000600 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdbb39966d4 R13: 00000000004c806c R14: 00000000004de5a8 R15: 00000000ffffffff kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' FAT-fs (loop2): bogus number of reserved sectors FAT-fs (loop2): Can't find a valid FAT filesystem kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-33' (00000000bd981238): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '9p-33' (00000000bd981238): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '9p-33' (00000000bd981238): fill_kobj_path: path = '/devices/virtual/bdi/9p-33' kobject: '9p-33' (00000000bd981238): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-33' (00000000bd981238): fill_kobj_path: path = '/devices/virtual/bdi/9p-33' kobject: '9p-33' (00000000bd981238): kobject_cleanup, parent (null) kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-33' (00000000bd981238): calling ktype release kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-33': free name BFS-fs: bfs_fill_super(): loop2 is unclean, continuing kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env BFS-fs: bfs_fill_super(): Inode 0x00000005 corrupted kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-34' (00000000f4ca32d1): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-34' (00000000f4ca32d1): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-34' (00000000f4ca32d1): fill_kobj_path: path = '/devices/virtual/bdi/9p-34' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-34' (00000000f4ca32d1): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: '9p-34' (00000000f4ca32d1): fill_kobj_path: path = '/devices/virtual/bdi/9p-34' kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-34' (00000000f4ca32d1): kobject_cleanup, parent (null) kobject: '9p-34' (00000000f4ca32d1): calling ktype release kobject: '9p-34': free name kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-35' (00000000dee5c43b): kobject_add_internal: parent: 'bdi', set: 'devices' BFS-fs: bfs_fill_super(): loop2 is unclean, continuing kobject: '9p-35' (00000000dee5c43b): kobject_uevent_env kobject: '9p-35' (00000000dee5c43b): fill_kobj_path: path = '/devices/virtual/bdi/9p-35' BFS-fs: bfs_fill_super(): Inode 0x00000005 corrupted kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '9p-35' (00000000dee5c43b): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: '9p-35' (00000000dee5c43b): fill_kobj_path: path = '/devices/virtual/bdi/9p-35' kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-35' (00000000dee5c43b): kobject_cleanup, parent (null) kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-35' (00000000dee5c43b): calling ktype release kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-35': free name kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' BFS-fs: bfs_fill_super(): loop2 is unclean, continuing kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env BFS-fs: bfs_fill_super(): Inode 0x00000005 corrupted kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-36' (00000000e7c19323): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-37' (0000000064e0e022): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-38' (00000000705db3f9): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-36' (00000000e7c19323): kobject_uevent_env kobject: '9p-37' (0000000064e0e022): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: '9p-38' (00000000705db3f9): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-37' (0000000064e0e022): fill_kobj_path: path = '/devices/virtual/bdi/9p-37' kobject: '9p-39' (000000002e1d3d57): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-38' (00000000705db3f9): fill_kobj_path: path = '/devices/virtual/bdi/9p-38' kobject: '9p-36' (00000000e7c19323): fill_kobj_path: path = '/devices/virtual/bdi/9p-36' kobject: '9p-39' (000000002e1d3d57): kobject_uevent_env kobject: '9p-39' (000000002e1d3d57): fill_kobj_path: path = '/devices/virtual/bdi/9p-39' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: '9p-39' (000000002e1d3d57): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-39' (000000002e1d3d57): fill_kobj_path: path = '/devices/virtual/bdi/9p-39' kobject: '9p-39' (000000002e1d3d57): kobject_cleanup, parent (null) kobject: '9p-39' (000000002e1d3d57): calling ktype release kobject: '9p-39': free name BFS-fs: bfs_fill_super(): loop2 is unclean, continuing BFS-fs: bfs_fill_super(): Inode 0x00000005 corrupted kobject: '9p-38' (00000000705db3f9): kobject_uevent_env kobject: '9p-36' (00000000e7c19323): kobject_uevent_env kobject: '9p-38' (00000000705db3f9): fill_kobj_path: path = '/devices/virtual/bdi/9p-38' kobject: '9p-37' (0000000064e0e022): kobject_uevent_env kobject: '9p-38' (00000000705db3f9): kobject_cleanup, parent (null) kobject: '9p-36' (00000000e7c19323): fill_kobj_path: path = '/devices/virtual/bdi/9p-36' kobject: '9p-38' (00000000705db3f9): calling ktype release kobject: '9p-37' (0000000064e0e022): fill_kobj_path: path = '/devices/virtual/bdi/9p-37' kobject: '9p-36' (00000000e7c19323): kobject_cleanup, parent (null) kobject: '9p-37' (0000000064e0e022): kobject_cleanup, parent (null) kobject: '9p-38': free name kobject: '9p-36' (00000000e7c19323): calling ktype release kobject: '9p-36': free name kobject: '9p-37' (0000000064e0e022): calling ktype release kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: '9p-37': free name kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-40' (000000009bd2a6f1): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-41' (00000000135f2c03): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-43' (00000000e43ac1c2): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-42' (00000000ace7fffb): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-40' (000000009bd2a6f1): kobject_uevent_env kobject: '9p-44' (000000000036424f): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-43' (00000000e43ac1c2): kobject_uevent_env kobject: '9p-42' (00000000ace7fffb): kobject_uevent_env kobject: '9p-41' (00000000135f2c03): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: '9p-42' (00000000ace7fffb): fill_kobj_path: path = '/devices/virtual/bdi/9p-42' kobject: '9p-40' (000000009bd2a6f1): fill_kobj_path: path = '/devices/virtual/bdi/9p-40' kobject: '9p-41' (00000000135f2c03): fill_kobj_path: path = '/devices/virtual/bdi/9p-41' kobject: '9p-44' (000000000036424f): kobject_uevent_env kobject: '9p-43' (00000000e43ac1c2): fill_kobj_path: path = '/devices/virtual/bdi/9p-43' kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '9p-44' (000000000036424f): fill_kobj_path: path = '/devices/virtual/bdi/9p-44' kobject: '9p-41' (00000000135f2c03): kobject_uevent_env kobject: '9p-45' (000000000fa2c5e7): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-41' (00000000135f2c03): fill_kobj_path: path = '/devices/virtual/bdi/9p-41' kobject: '9p-41' (00000000135f2c03): kobject_cleanup, parent (null) kobject: '9p-45' (000000000fa2c5e7): kobject_uevent_env kobject: '9p-41' (00000000135f2c03): calling ktype release kobject: '9p-45' (000000000fa2c5e7): fill_kobj_path: path = '/devices/virtual/bdi/9p-45' kobject: '9p-41': free name kobject: '9p-42' (00000000ace7fffb): kobject_uevent_env kobject: '9p-42' (00000000ace7fffb): fill_kobj_path: path = '/devices/virtual/bdi/9p-42' kobject: '9p-43' (00000000e43ac1c2): kobject_uevent_env kobject: '9p-43' (00000000e43ac1c2): fill_kobj_path: path = '/devices/virtual/bdi/9p-43' kobject: '9p-42' (00000000ace7fffb): kobject_cleanup, parent (null) kobject: '9p-42' (00000000ace7fffb): calling ktype release kobject: '9p-44' (000000000036424f): kobject_uevent_env kobject: '9p-40' (000000009bd2a6f1): kobject_uevent_env kobject: '9p-42': free name kobject: '9p-40' (000000009bd2a6f1): fill_kobj_path: path = '/devices/virtual/bdi/9p-40' kobject: '9p-44' (000000000036424f): fill_kobj_path: path = '/devices/virtual/bdi/9p-44' kobject: '9p-44' (000000000036424f): kobject_cleanup, parent (null) kobject: '9p-43' (00000000e43ac1c2): kobject_cleanup, parent (null) kobject: '9p-43' (00000000e43ac1c2): calling ktype release kobject: '9p-40' (000000009bd2a6f1): kobject_cleanup, parent (null) kobject: '9p-44' (000000000036424f): calling ktype release kobject: '9p-45' (000000000fa2c5e7): kobject_uevent_env kobject: '9p-43': free name kobject: '9p-45' (000000000fa2c5e7): fill_kobj_path: path = '/devices/virtual/bdi/9p-45' kobject: '9p-40' (000000009bd2a6f1): calling ktype release kobject: '9p-44': free name kobject: '9p-40': free name kobject: '9p-45' (000000000fa2c5e7): kobject_cleanup, parent (null) kobject: '9p-45' (000000000fa2c5e7): calling ktype release kobject: '9p-45': free name kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop1' (000000003bd04b37): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop1' (000000003bd04b37): kobject_cleanup, parent (null) kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000003bd04b37): calling ktype release kobject: 'loop1': free name kobject: '9p-46' (000000002a3adf87): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-46' (000000002a3adf87): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: '9p-46' (000000002a3adf87): fill_kobj_path: path = '/devices/virtual/bdi/9p-46' kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '9p-47' (000000005bf8344f): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '9p-47' (000000005bf8344f): kobject_uevent_env kobject: '9p-47' (000000005bf8344f): fill_kobj_path: path = '/devices/virtual/bdi/9p-47' kobject: '9p-48' (00000000b5be2d69): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-46' (000000002a3adf87): kobject_uevent_env kobject: '9p-46' (000000002a3adf87): fill_kobj_path: path = '/devices/virtual/bdi/9p-46' kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-49' (00000000f43e4fcc): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '9p-46' (000000002a3adf87): kobject_cleanup, parent (null) kobject: '9p-48' (00000000b5be2d69): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '9p-46' (000000002a3adf87): calling ktype release kobject: '9p-49' (00000000f43e4fcc): kobject_uevent_env kobject: '9p-48' (00000000b5be2d69): fill_kobj_path: path = '/devices/virtual/bdi/9p-48' EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: '9p-49' (00000000f43e4fcc): fill_kobj_path: path = '/devices/virtual/bdi/9p-49' kobject: '9p-46': free name EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: '9p-47' (000000005bf8344f): kobject_uevent_env kobject: '9p-47' (000000005bf8344f): fill_kobj_path: path = '/devices/virtual/bdi/9p-47' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: '9p-47' (000000005bf8344f): kobject_cleanup, parent (null) kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000060e7d1b5): kobject_add_internal: parent: 'ext4', set: '' kobject: '9p-47' (000000005bf8344f): calling ktype release EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue kobject: '9p-47': free name kobject: '9p-50' (00000000d854a1f6): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop1' (0000000060e7d1b5): kobject_cleanup, parent (null) kobject: '9p-50' (00000000d854a1f6): kobject_uevent_env kobject: 'loop1' (0000000060e7d1b5): calling ktype release kobject: '9p-49' (00000000f43e4fcc): kobject_uevent_env kobject: 'loop1': free name kobject: '9p-50' (00000000d854a1f6): fill_kobj_path: path = '/devices/virtual/bdi/9p-50' kobject: '9p-49' (00000000f43e4fcc): fill_kobj_path: path = '/devices/virtual/bdi/9p-49' kobject: '9p-48' (00000000b5be2d69): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: '9p-48' (00000000b5be2d69): fill_kobj_path: path = '/devices/virtual/bdi/9p-48' kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '9p-49' (00000000f43e4fcc): kobject_cleanup, parent (null) kobject: '9p-48' (00000000b5be2d69): kobject_cleanup, parent (null) kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: '9p-49' (00000000f43e4fcc): calling ktype release kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '9p-48' (00000000b5be2d69): calling ktype release kobject: '9p-49': free name kobject: '9p-48': free name kobject: '9p-50' (00000000d854a1f6): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: '9p-50' (00000000d854a1f6): fill_kobj_path: path = '/devices/virtual/bdi/9p-50' fat__get_entry: 22 callbacks suppressed FAT-fs (loop4): Directory bread(block 513) failed kobject: '9p-50' (00000000d854a1f6): kobject_cleanup, parent (null) FAT-fs (loop4): Directory bread(block 514) failed FAT-fs (loop4): Directory bread(block 515) failed kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '9p-50' (00000000d854a1f6): calling ktype release FAT-fs (loop4): Directory bread(block 516) failed kobject: '9p-50': free name FAT-fs (loop4): Directory bread(block 517) failed kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env FAT-fs (loop4): Directory bread(block 518) failed kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' FAT-fs (loop4): Directory bread(block 519) failed FAT-fs (loop4): Directory bread(block 520) failed kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env FAT-fs (loop4): Directory bread(block 521) failed kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' FAT-fs (loop4): Directory bread(block 522) failed kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000095003092): kobject_add_internal: parent: 'ext4', set: '' kobject: '9p-51' (00000000bb66e175): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue kobject: '9p-51' (00000000bb66e175): kobject_uevent_env kobject: '9p-51' (00000000bb66e175): fill_kobj_path: path = '/devices/virtual/bdi/9p-51' kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000095003092): kobject_cleanup, parent (null) kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop1' (0000000095003092): calling ktype release kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1': free name kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: '9p-51' (00000000bb66e175): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '9p-51' (00000000bb66e175): fill_kobj_path: path = '/devices/virtual/bdi/9p-51' kobject: '9p-51' (00000000bb66e175): kobject_cleanup, parent (null) kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: '9p-51' (00000000bb66e175): calling ktype release kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: '9p-51': free name kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000006f49ec51): kobject_add_internal: parent: 'ext4', set: '' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop1' (000000006f49ec51): kobject_cleanup, parent (null) kobject: 'loop1' (000000006f49ec51): calling ktype release kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop1': free name kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop1' (00000000e6a55a85): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000e6a55a85): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000007e90dfdc): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (000000007e90dfdc): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' sch_fq: defrate 0 ignored. sch_fq: defrate 0 ignored. kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' sch_fq: defrate 0 ignored. kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env sch_fq: defrate 0 ignored. kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' sch_fq: defrate 0 ignored. kobject: 'loop2' (000000000ece73d3): kobject_uevent_env sch_fq: defrate 0 ignored. kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' sch_fq: defrate 0 ignored. kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env sch_fq: defrate 0 ignored. kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env sch_fq: defrate 0 ignored. kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' sch_fq: defrate 0 ignored. kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env validate_nla: 1 callbacks suppressed netlink: 'syz-executor.0': attribute type 16 has an invalid length. kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 'syz-executor.0': attribute type 16 has an invalid length. kobject: 'loop3' (000000005e8adae9): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 'syz-executor.0': attribute type 16 has an invalid length. IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000056cdf1bf): kobject_uevent_env kobject: 'loop4' (0000000056cdf1bf): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 'syz-executor.0': attribute type 16 has an invalid length. kobject: 'loop3' (000000005e8adae9): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready kobject: 'loop2' (000000000ece73d3): kobject_uevent_env kobject: 'loop2' (000000000ece73d3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000013d58fa5): kobject_uevent_env kobject: 'loop0' (0000000013d58fa5): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000005e8adae9): kobject_uevent_env kobject: 'loop3' (000000005e8adae9): fill_kobj_path: path = '/devices/virtual/block/loop3'