[tor-bugs] #22424 [Core Tor/Tor]: Always check for usage underflows in the storage API
Tor Bug Tracker & Wiki
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Sun May 28 12:37:18 UTC 2017
#22424: Always check for usage underflows in the storage API
--------------------------------------------+------------------------------
Reporter: teor | Owner:
Type: defect | Status: needs_review
Priority: Medium | Milestone: Tor:
| 0.3.1.x-final
Component: Core Tor/Tor | Version: Tor:
| 0.3.1.1-alpha
Severity: Normal | Resolution:
Keywords: integer-safety, race-condition | Actual Points: 0.2
Parent ID: | Points: 0.2
Reviewer: | Sponsor:
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Changes (by teor):
* keywords: => integer-safety, race-condition
* status: new => needs_review
* actualpoints: => 0.2
Comment:
Please see my branch bug22424, which fixes two different ways the usage
could underflow, and does something sensible when it does underflow. (For
example, the usage can underflow when we cache the usage, then an external
process makes a file bigger, then we delete that file.)
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22424#comment:1>
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