Differential D38272

cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called.
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Authored by dchagin on Jan 30 2023, 12:47 PM.

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rG11ade1dffc8d: cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called.
rG2058f075b4af: cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called.

Summary

cpuset_which() resolves the argument pair which and id and returns references
to an appropriate resources. To avoid leaking resources or accessing unresolved
references to a resources handle new which CPU_WHICH_TIDPID wherever
cpuset_which() is called.

Reported by: syzbot+331e8402e0f7347f0f2a@syzkaller.appspotmail.com

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rG FreeBSD src repository

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Buildable 49318
Build 46208: arc lint + arc unit

Event Timeline

dchagin created this revision.Jan 30 2023, 12:47 PM

Herald added a subscriber: imp. · View Herald TranscriptJan 30 2023, 12:47 PM

dchagin requested review of this revision.Jan 30 2023, 12:47 PM

Harbormaster completed remote builds in B49318: Diff 116040.Jan 30 2023, 12:47 PM

To avoid code duplication cpuset_which2() has been added.

dchagin edited the summary of this revision. (Show Details)Jan 30 2023, 1:09 PM

dchagin added a reviewer: kib.

kib accepted this revision.Jan 30 2023, 1:48 PM

This revision is now accepted and ready to land.Jan 30 2023, 1:48 PM

Closed by commit rG2058f075b4af: cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called. (authored by dchagin). · Explain WhyJan 30 2023, 4:29 PM

This revision was automatically updated to reflect the committed changes.

dchagin added a commit: rG2058f075b4af: cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called..

dchagin added a commit: rG11ade1dffc8d: cpuset: Handle CPU_WHICH_TIDPID wherever cpuset_which() is called..Feb 6 2023, 7:10 PM

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sys/

kern/

43 lines

Diff 116040

sys/kern/kern_cpuset.c

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