[syzbot] Monthly nilfs report (Apr 2023)

From: syzbot
Date: Thu Apr 27 2023 - 06:39:47 EST


Hello nilfs maintainers/developers,

This is a 31-day syzbot report for the nilfs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/nilfs

During the period, 1 new issues were detected and 3 were fixed.
In total, 17 issues are still open and 24 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 1238 Yes INFO: task hung in lock_mount
https://syzkaller.appspot.com/bug?extid=221d75710bde87fa0e97
<2> 605 Yes WARNING in nilfs_btree_assign
https://syzkaller.appspot.com/bug?extid=31837fe952932efc8fb9
<3> 321 Yes WARNING in nilfs_sufile_set_segment_usage
https://syzkaller.appspot.com/bug?extid=14e9f834f6ddecece094
<4> 241 Yes INFO: task hung in sync_inodes_sb (4)
https://syzkaller.appspot.com/bug?extid=7d50f1e54a12ba3aeae2
<5> 195 No INFO: task hung in path_openat (7)
https://syzkaller.appspot.com/bug?extid=950a0cdaa2fdd14f5bdc
<6> 55 Yes INFO: task hung in nilfs_detach_log_writer
https://syzkaller.appspot.com/bug?extid=e3973c409251e136fdd0
<7> 28 Yes kernel BUG in folio_end_writeback
https://syzkaller.appspot.com/bug?extid=7e5cf1d80677ec185e63
<8> 21 No KASAN: slab-out-of-bounds Read in nilfs_iget_test
https://syzkaller.appspot.com/bug?extid=cac676135771fc8f1eb2
<9> 6 No BUG: unable to handle kernel NULL pointer dereference in nilfs_segctor_do_construct
https://syzkaller.appspot.com/bug?extid=5afc832d6dbb2fd17538
<10> 3 No WARNING in nilfs_btree_propagate
https://syzkaller.appspot.com/bug?extid=527641d191abe35993c1

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