[syzbot] Monthly block report (Nov 2026)

[syzbot] Monthly block report (Nov 2026)

[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 2 were fixed.
In total, 30 issues are still open and 124 have already been fixed.
There are also 34 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  4342    No    general protection fault in lo_rw_aio
                   https://syzkaller.appspot.com/bug?extid=cd8a9a308e879a4e2c28
<2>  2419    Yes   possible deadlock in blkg_conf_prep
                   https://syzkaller.appspot.com/bug?extid=144a1c0e22e53a08ef5a
<3>  1749    Yes   INFO: task hung in blkdev_fallocate
                   https://syzkaller.appspot.com/bug?extid=39b75c02b8be0a061bfc
<4>  323     Yes   INFO: task hung in __rq_qos_throttle (2)
                   https://syzkaller.appspot.com/bug?extid=53706c567afab5131044
<5>  219     Yes   general protection fault in rtlock_slowlock_locked
                   https://syzkaller.appspot.com/bug?extid=08df3e4c9b304b37cb04
<6>  69      Yes   BUG: unable to handle kernel paging request in blk_mq_complete_request_remote
                   https://syzkaller.appspot.com/bug?extid=2e3bf0bd49acd9b21d4b
<7>  34      No    WARNING in blk_mq_dispatch_rq_list
                   https://syzkaller.appspot.com/bug?extid=49b69d460fb5134ee1d7
<8>  31      Yes   BUG: corrupted list in blk_mq_request_bypass_insert
                   https://syzkaller.appspot.com/bug?extid=f4353e96f7004ae5a09e
<9>  5       Yes   WARNING: lock held when returning to user space in blk_throtl_init
                   https://syzkaller.appspot.com/bug?extid=1eb53c83ab8b0a0302a6
<10> 3348    Yes   WARNING in blk_mq_free_tag_set
                   https://syzkaller.appspot.com/bug?extid=02b37e31e64ea5cb6d29

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