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Message #08371
[Bug 1109266] Re: Coverity DIVIDE_BY_ZERO - CID 10939
** No longer affects: notify-osd/precise
** Project changed: notify-osd => notify-osd (Ubuntu)
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https://bugs.launchpad.net/bugs/1109266
Title:
Coverity DIVIDE_BY_ZERO - CID 10939
Status in “notify-osd” package in Ubuntu:
New
Bug description:
This bug is exported from the Coverity Integration Manager on Canonical's servers. For information on how this is done please see this website: https://wiki.ubuntu.com/CanonicalProductStrategy/Coverity
CID: 10939
Checker: DIVIDE_BY_ZERO
Category: No category available
CWE definition: http://cwe.mitre.org/data/definitions/571.html
File: /tmp/buildd/notify-osd-0.9.35daily12.11.28/egg/egg-alpha.c
Function: egg_sine_inc_func
Code snippet:
707 EggFixed sine;
708
709 timeline = egg_alpha_get_timeline (alpha);
710 frame = egg_timeline_get_current_frame (timeline);
CID 10939 - DIVIDE_BY_ZERO
On this path, function call "egg_timeline_get_n_frames(timeline)" has return value of 0
Assigning: "n_frames" = "egg_timeline_get_n_frames(timeline)".
711 n_frames = egg_timeline_get_n_frames (timeline);
712
CID 10939 - DIVIDE_BY_ZERO
In expression "256 * frame / n_frames", division by expression "n_frames" which may be zero has undefined behavior.
713 x = 256 * frame / n_frames;
714
715 sine = egg_sini (x) * EGG_ALPHA_MAX_ALPHA;
716
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