[syzbot] Monthly block report (Oct 2026)

[syzbot] Monthly block report (Oct 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, 0 new issues were detected and 0 were fixed.
In total, 32 issues are still open and 119 have already been fixed.
There are also 32 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  1744    Yes   INFO: task hung in blkdev_fallocate
                   https://syzkaller.appspot.com/bug?extid=39b75c02b8be0a061bfc
<2>  1435    Yes   possible deadlock in blkg_conf_prep
                   https://syzkaller.appspot.com/bug?extid=144a1c0e22e53a08ef5a
<3>  220     Yes   INFO: task hung in __rq_qos_throttle (2)
                   https://syzkaller.appspot.com/bug?extid=53706c567afab5131044
<4>  141     No    INFO: task hung in read_cache_folio (6)
                   https://syzkaller.appspot.com/bug?extid=9db0864859224b833108
<5>  46      No    BUG: unable to handle kernel paging request in blk_mq_complete_request_remote
                   https://syzkaller.appspot.com/bug?extid=2e3bf0bd49acd9b21d4b
<6>  22      Yes   BUG: corrupted list in blk_mq_request_bypass_insert
                   https://syzkaller.appspot.com/bug?extid=f4353e96f7004ae5a09e
<7>  21      No    WARNING in blk_mq_alloc_tag_set
                   https://syzkaller.appspot.com/bug?extid=18431bc7dccedc61778f
<8>  21      No    WARNING in blk_mq_dispatch_rq_list
                   https://syzkaller.appspot.com/bug?extid=49b69d460fb5134ee1d7
<9>  19      No    BUG: unable to handle kernel paging request in __blk_mq_alloc_driver_tag
                   https://syzkaller.appspot.com/bug?extid=b380cbb218c1ef0fe808
<10> 34      Yes   KASAN: slab-out-of-bounds Read in blk_mq_free_rqs
                   https://syzkaller.appspot.com/bug?extid=e90526cab23b9efcd03c

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