[syzbot] Monthly block report (Dec 2025)

[syzbot]

Hello block maintainers/developers,

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

During the period, 1 new issues were detected and 1 were fixed.
In total, 41 issues are still open and 108 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 10004 Yes INFO: task hung in read_part_sector (2)
https://syzkaller.appspot.com/bug?extid=82de77d3f217960f087d
<2> 8144 Yes KMSAN: kernel-infoleak in filemap_read
https://syzkaller.appspot.com/bug?extid=905d785c4923bea2c1db
<3> 3127 Yes INFO: task hung in bdev_open
https://syzkaller.appspot.com/bug?extid=5c6179f2c4f1e111df11
<4> 2746 Yes INFO: task hung in sync_bdevs (3)
https://syzkaller.appspot.com/bug?extid=97bc0b256218ed6df337
<5> 2628 Yes INFO: task hung in bdev_release
https://syzkaller.appspot.com/bug?extid=4da851837827326a7cd4
<6> 1696 Yes INFO: task hung in blkdev_fallocate
https://syzkaller.appspot.com/bug?extid=39b75c02b8be0a061bfc
<7> 667 Yes possible deadlock in elevator_change
https://syzkaller.appspot.com/bug?extid=ccae337393ac17091c34
<8> 282 No INFO: task hung in queue_limits_commit_update_frozen
https://syzkaller.appspot.com/bug?extid=f272bbfbf8498ddadea5
<9> 124 No KCSAN: data-race in block_uevent / inc_diskseq (2)
https://syzkaller.appspot.com/bug?extid=c147f9175ec6cc7bd73b
<10> 101 Yes WARNING in blk_register_tracepoints
https://syzkaller.appspot.com/bug?extid=c54ded83396afee31eb1

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