Coverity Scan: mamedev/mame

Project Name mamedev/mame
Lines of code analyzed 8,777,581
On Coverity Scan since Jul 11, 2015
Last build analyzed about 9 hours ago
   
Language C/C++
Repository URL https://github.com/mamedev/mame
Homepage URL http://www.mamedev.org/
License GPL (GNU General Public License version )

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Analysis Metrics

Version: mame0282-384-g0793fd92dd6

Nov 25, 2025
Last Analyzed
8,777,581
Lines of Code Analyzed
7,790,105
Lines of Code in Selected Components
1.87
Defect Density

Defect changes since previous build dated Nov 21, 2025

5
Newly detected
5
Eliminated

Defects by status for current build

38,199
Total defects
14,571
Outstanding
23,585
Fixed
See how defect density for 'mamedev/mame' compares with defect density for other open source projects.  Learn more

Note: Defect density is measured by the number of defects per 1,000 lines of code.


Analysis Metrics per Components

Component Name Pattern Ignore Line of Code Defect density
3rdparty /3rdparty/.* Yes 848,106 N/A
msys64 /msys64/.* Yes 0 N/A
generated /build/generated/.* No 780,219 0.02
devices /src/devices/.* No 4,044,139 2.86
emu /src/emu/.* No 85,716 1.89
frontend /src/frontend/.* No 43,337 1.15
formats /src/lib/formats/.* No 46,893 2.52
netlist /src/lib/netlist/.* No 116,708 0.51
util /src/lib/util/.* No 29,801 4.50
mame /src/mame/.* No 2,463,197 0.65
osd /src/osd/.* No 46,229 2.29
tools /src/tools/.* No 42,589 2.79
zexall /src/zexall/.* No 0 N/A
System includes /usr/include/.* Yes 139,370 N/A
Other .* No 107,614 0.00

CWE Top 25 defects

ID CWE-Name Number of Defects
120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') 14
131 Incorrect Calculation of Buffer Size 2
190 Integer Overflow or Wraparound 377
676 Use of Potentially Dangerous Function 8
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