Reminder: 5 open syzbot bugs in "fs/ntfs" subsystem

[Eric Biggers]

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Of the currently open syzbot reports against the upstream kernel, I've manually
marked 5 of them as possibly being bugs in the "fs/ntfs" subsystem.  I've listed
these reports below, sorted by an algorithm that tries to list first the reports
most likely to be still valid, important, and actionable.

Of these 5 bugs, 2 were seen in mainline in the last week.

If you believe a bug is no longer valid, please close the syzbot report by
sending a '#syz fix', '#syz dup', or '#syz invalid' command in reply to the
original thread, as explained at https://goo.gl/tpsmEJ#status

If you believe I misattributed a bug to the "fs/ntfs" subsystem, please let me
know, and if possible forward the report to the correct people or mailing list.

Here are the bugs:

--------------------------------------------------------------------------------
Title:              WARNING: bad unlock balance in rcu_core
Last occurred:      0 days ago
Reported:           100 days ago
Branches:           Mainline and others
Dashboard link:     https://syzkaller.appspot.com/bug?id=0d5bdaf028e4283ad7404609d17e5077f48ff26d
Original thread:    https://lkml.kernel.org/lkml/000000000000c0bffa0586795098@xxxxxxxxxx/T/#u

Unfortunately, this bug does not have a reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+36baa6c2180e959e19b1@xxxxxxxxxxxxxxxxxxxxxxxxx

If you send any email or patch for this bug, please consider replying to the
original thread.  For the git send-email command to use, or tips on how to reply
if the thread isn't in your mailbox, see the "Reply instructions" at
https://lkml.kernel.org/r/000000000000c0bffa0586795098@xxxxxxxxxx

--------------------------------------------------------------------------------
Title:              WARNING: bad unlock balance in rcu_lock_release
Last occurred:      0 days ago
Reported:           30 days ago
Branches:           Mainline
Dashboard link:     https://syzkaller.appspot.com/bug?id=a939746456c0350d6a368a9d30a4dcfcafa800be
Original thread:    https://lkml.kernel.org/lkml/000000000000fdd3f3058bfcf369@xxxxxxxxxx/T/#u

Unfortunately, this bug does not have a reproducer.

No one has replied to the original thread for this bug yet.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+f9545ab3e9f85cd43a3a@xxxxxxxxxxxxxxxxxxxxxxxxx

If you send any email or patch for this bug, please consider replying to the
original thread.  For the git send-email command to use, or tips on how to reply
if the thread isn't in your mailbox, see the "Reply instructions" at
https://lkml.kernel.org/r/000000000000fdd3f3058bfcf369@xxxxxxxxxx

--------------------------------------------------------------------------------
Title:              KASAN: use-after-free Read in ntfs_read_locked_inode
Last occurred:      474 days ago
Reported:           474 days ago
Branches:           Mainline
Dashboard link:     https://syzkaller.appspot.com/bug?id=5c5466347d4969ec80f5000c5e049056f48e3e2e
Original thread:    https://lkml.kernel.org/lkml/001a11441b6c6cb96c0569120042@xxxxxxxxxx/T/#u

This bug has a C reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+19b469021157c136116a@xxxxxxxxxxxxxxxxxxxxxxxxx

If you send any email or patch for this bug, please consider replying to the
original thread.  For the git send-email command to use, or tips on how to reply
if the thread isn't in your mailbox, see the "Reply instructions" at
https://lkml.kernel.org/r/001a11441b6c6cb96c0569120042@xxxxxxxxxx

--------------------------------------------------------------------------------
Title:              KASAN: slab-out-of-bounds Read in ntfs_attr_find
Last occurred:      477 days ago
Reported:           477 days ago
Branches:           Mainline
Dashboard link:     https://syzkaller.appspot.com/bug?id=731ba1daa85050266cef2836e917da1cc785f50a
Original thread:    https://lkml.kernel.org/lkml/001a11447acae6b4560568e08829@xxxxxxxxxx/T/#u

This bug has a C reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+aed06913f36eff9b544e@xxxxxxxxxxxxxxxxxxxxxxxxx

If you send any email or patch for this bug, please consider replying to the
original thread.  For the git send-email command to use, or tips on how to reply
if the thread isn't in your mailbox, see the "Reply instructions" at
https://lkml.kernel.org/r/001a11447acae6b4560568e08829@xxxxxxxxxx

--------------------------------------------------------------------------------
Title:              kernel BUG at fs/ntfs/aops.c:LINE!
Last occurred:      460 days ago
Reported:           460 days ago
Branches:           Mainline
Dashboard link:     https://syzkaller.appspot.com/bug?id=86d590f642a6d325d2f9dc9571e6702bed1a77ee
Original thread:    https://lkml.kernel.org/lkml/000000000000c4b45a056a36872f@xxxxxxxxxx/T/#u

This bug has a C reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+6a5a7672f663cce8b156@xxxxxxxxxxxxxxxxxxxxxxxxx

If you send any email or patch for this bug, please consider replying to the
original thread.  For the git send-email command to use, or tips on how to reply
if the thread isn't in your mailbox, see the "Reply instructions" at
https://lkml.kernel.org/r/000000000000c4b45a056a36872f@xxxxxxxxxx