REISERFS (device loop5): checking transaction log (loop5) ====================================================== WARNING: possible circular locking dependency detected 4.14.305-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.4/10000 is trying to acquire lock: (&type->s_umount_key#51){++++}, at: [] __get_super.part.0+0x271/0x390 fs/super.c:678 but task is already holding lock: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x1b/0x40 block/ioctl.c:192 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&bdev->bd_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 blkdev_put+0x27/0x4c0 fs/block_dev.c:1826 release_journal_dev fs/reiserfs/journal.c:2598 [inline] free_journal_ram+0x41a/0x5c0 fs/reiserfs/journal.c:1903 do_journal_release fs/reiserfs/journal.c:1969 [inline] journal_release+0x1cf/0x450 fs/reiserfs/journal.c:1980 reiserfs_put_super+0xbb/0x560 fs/reiserfs/super.c:616 generic_shutdown_super+0x144/0x370 fs/super.c:446 kill_block_super+0x95/0xe0 fs/super.c:1161 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 deactivate_super+0x7f/0xa0 fs/super.c:350 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183 task_work_run+0x11f/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (&type->s_umount_key#51){++++}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 __get_super.part.0+0x271/0x390 fs/super.c:678 __get_super include/linux/spinlock.h:317 [inline] get_super+0x2b/0x50 fs/super.c:707 fsync_bdev+0x14/0xc0 fs/block_dev.c:495 invalidate_partition+0x74/0xb0 block/genhd.c:1509 drop_partitions.isra.0+0x83/0x150 block/partition-generic.c:448 rescan_partitions+0xa9/0x800 block/partition-generic.c:521 __blkdev_reread_part+0x140/0x1d0 block/ioctl.c:173 blkdev_reread_part+0x23/0x40 block/ioctl.c:193 loop_reread_partitions drivers/block/loop.c:624 [inline] loop_set_status+0xeeb/0x12b0 drivers/block/loop.c:1193 loop_set_status64+0x92/0xe0 drivers/block/loop.c:1316 lo_ioctl+0x587/0x1cd0 drivers/block/loop.c:1446 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&bdev->bd_mutex); lock(&type->s_umount_key#51); lock(&bdev->bd_mutex); lock(&type->s_umount_key#51); *** DEADLOCK *** 2 locks held by syz-executor.4/10000: #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x87/0x1cd0 drivers/block/loop.c:1419 #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x1b/0x40 block/ioctl.c:192 REISERFS (device loop5): Using r5 hash to sort names stack backtrace: CPU: 0 PID: 10000 Comm: syz-executor.4 Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 REISERFS (device loop5): using 3.5.x disk format lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. __get_super.part.0+0x271/0x390 fs/super.c:678 __get_super include/linux/spinlock.h:317 [inline] get_super+0x2b/0x50 fs/super.c:707 fsync_bdev+0x14/0xc0 fs/block_dev.c:495 invalidate_partition+0x74/0xb0 block/genhd.c:1509 drop_partitions.isra.0+0x83/0x150 block/partition-generic.c:448 rescan_partitions+0xa9/0x800 block/partition-generic.c:521 __blkdev_reread_part+0x140/0x1d0 block/ioctl.c:173 blkdev_reread_part+0x23/0x40 block/ioctl.c:193 loop_reread_partitions drivers/block/loop.c:624 [inline] loop_set_status+0xeeb/0x12b0 drivers/block/loop.c:1193 loop_set_status64+0x92/0xe0 drivers/block/loop.c:1316 lo_ioctl+0x587/0x1cd0 drivers/block/loop.c:1446 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f8a455240f9 RSP: 002b:00007f8a43a96168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8a45643f80 RCX: 00007f8a455240f9 RDX: 0000000020004640 RSI: 0000000000004c04 RDI: 0000000000000003 RBP: 00007f8a4557fae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca6bda7bf R14: 00007f8a43a96300 R15: 0000000000022000 REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal REISERFS (device loop1): using 3.5.x disk format REISERFS (device loop5): using ordered data mode REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. reiserfs: using flush barriers REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop5): checking transaction log (loop5) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): using 3.5.x disk format REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. loop_reread_partitions: partition scan of loop0 (ÔÑîì­æÝý{Ýa­¨žJ[ ©\Mù3IîÖj->\;2à ýÙ+·Ñ2í*-§‚”þ•Ke`) failed (rc=1) REISERFS (device loop5): Using r5 hash to sort names REISERFS (device loop5): using 3.5.x disk format REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal REISERFS (device loop2): using ordered data mode REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 reiserfs: using flush barriers REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal REISERFS (device loop5): using ordered data mode reiserfs: using flush barriers REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop5): checking transaction log (loop5) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): using 3.5.x disk format REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop2): using 3.5.x disk format REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. syz-executor.0 (10067) used greatest stack depth: 24944 bytes left REISERFS (device loop5): Using r5 hash to sort names REISERFS (device loop5): using 3.5.x disk format REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): using 3.5.x disk format REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) REISERFS (device loop4): Using r5 hash to sort names REISERFS (device loop4): using 3.5.x disk format REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. syz-executor.0 uses obsolete (PF_INET,SOCK_PACKET) netlink: 32 bytes leftover after parsing attributes in process `syz-executor.2'. REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop4): Using r5 hash to sort names REISERFS (device loop4): using 3.5.x disk format REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop3): Using r5 hash to sort names REISERFS (device loop3): using 3.5.x disk format REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: the mand mount option is being deprecated and will be removed in v5.15! ====================================================== REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers EXT4-fs (loop2): Test dummy encryption mount option ignored REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) EXT4-fs (loop2): orphan cleanup on readonly fs EXT4-fs error (device loop2): ext4_ext_check_inode:510: inode #3: comm syz-executor.2: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 1, max 4(4), depth 0(0) EXT4-fs error (device loop2): ext4_quota_enable:5740: comm syz-executor.2: Bad quota inode # 3 EXT4-fs warning (device loop2): ext4_enable_quotas:5780: Failed to enable quota tracking (type=-1, err=-117). Please run e2fsck to fix. REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal EXT4-fs (loop2): Cannot turn on quotas: error -117 REISERFS (device loop3): using ordered data mode EXT4-fs (loop2): mounted filesystem without journal. Opts: test_dummy_encryption,sysvgroups,max_dir_size_kb=0x0000000000000009,barrier=0x000000007ffffffe,data_err=abort,resgid=0x0000000000000000,data_err=ignore,resgid=0x000000000000ee00,minixdf,,errors=continue reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): Using r5 hash to sort names REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop4): using 3.5.x disk format REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0)