The GNU Hurd - Bugs: bug #20906, libstore segfaults when failing to...

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bug #20906: libstore segfaults when failing to open multiple stores

Submitter:	Carl Fredrik Hammar <hammy>
Submitted:	Sun 26 Aug 2007 03:59:55 PM UTC


Category:	Hurd	Severity:	3 - Normal
Priority:	5 - Normal	Item Group:	None
Status:	Ready For Test	Privacy:	Public
Assigned to:	None	Originator Name:
Open/Closed:	Open	Reproducibility:	Every Time
Size (loc):	None	Planned Release:	None
Effort:	0.00
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Sun 26 Aug 2007 03:59:55 PM UTC, original submission:

When layering a store over multiple stores that fail to open, `libchannel' generates a segfault.

To test it just do `settrans -ac foo /hurd/storeio -T file one two', where `one' and `two' doesn't exist. `foo' will crash after a `echo bar > foo'.

This is due to two `of by one' bugs in `store_parsed_open' and `store_open_children' functions of `libstore'.

I have attached a patch fixing them and as a bonus slightly restructures the affected code in `store_open_children' to match `store_parsed_open'.

Carl Fredrik Hammar <hammy>

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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file #13805: libstore-multiple-stores-cleanup.diff added by hammy (864B - application/octet-stream)

Depends on the following items: None found

Items that depend on this one: None found

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Date	Changed by	Updated Field	Previous Value	=>	Replaced by
2007-08-26	hammy	Attached File	-		Added libstore-multiple-stores-cleanup.diff, #13805

The GNU Hurd - Bugs: bug #20906, libstore segfaults when failing to...

bug #20906: libstore segfaults when failing to open multiple stores

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