Bug 213165 - Fix Overrelease in makeFailureSetForAllTextManipulationItems
Summary: Fix Overrelease in makeFailureSetForAllTextManipulationItems
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKit2 (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Critical
Assignee: Nobody
Keywords: InRadar
Depends on:
Reported: 2020-06-13 09:32 PDT by Richard Houle
Modified: 2020-06-13 14:05 PDT (History)
4 users (show)

See Also:

Proposed fix V1 (2.06 KB, patch)
2020-06-13 09:38 PDT, Richard Houle
wenson_hsieh: review+
Details | Formatted Diff | Diff
Proposed Fix V2 (2.10 KB, patch)
2020-06-13 11:44 PDT, Richard Houle
no flags Details | Formatted Diff | Diff

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Description Richard Houle 2020-06-13 09:32:18 PDT
The following line of code in Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm:

     RetainPtr<NSMutableArray> wkFailures = adoptNS([[[NSMutableArray alloc] initWithCapacity:items.count] autorelease]);

causes an overrelease when the autorelease pool is drained.
Comment 1 Richard Houle 2020-06-13 09:38:00 PDT
Created attachment 401838 [details]
Proposed fix V1
Comment 2 Wenson Hsieh 2020-06-13 11:12:42 PDT
Comment on attachment 401838 [details]
Proposed fix V1

Good catch!
Comment 3 Wenson Hsieh 2020-06-13 11:14:24 PDT
Comment on attachment 401838 [details]
Proposed fix V1

View in context: https://bugs.webkit.org/attachment.cgi?id=401838&action=review

> Source/WebKit/ChangeLog:3
> +        https://bugs.webkit.org/show_bug.cgi?id=213165

The fix looks good to me, but please add the bug title here as well.
Comment 4 Richard Houle 2020-06-13 11:44:40 PDT
Created attachment 401846 [details]
Proposed Fix V2
Comment 5 EWS 2020-06-13 12:06:29 PDT
Committed r263004: <https://trac.webkit.org/changeset/263004>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 401846 [details].
Comment 6 Radar WebKit Bug Importer 2020-06-13 12:07:16 PDT
Comment 7 Darin Adler 2020-06-13 14:02:31 PDT
Someone should grep "adopt.+autorelease" across the whole source tree to see if we made the identical mistake in the exact same way elsewhere. Iā€™d do myself if I had source checked out on a readily accessible computer, but that might not happen for a few days.
Comment 8 Richard Houle 2020-06-13 14:03:55 PDT
I did grep the entire tree.

This was the only problematic entry.
Comment 9 Darin Adler 2020-06-13 14:05:27 PDT
(In reply to Richard Houle from comment #8)
> I did grep the entire tree.

Great. Thanks!