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authorAlan Coopersmith <alan.coopersmith@oracle.com>2011-02-11 14:20:24 -0800
committerUlrich Sibiller <uli42@gmx.de>2016-10-12 09:34:38 +0200
commit290f94aea2b6cf0b265bce33cadcf2f2cbcacd53 (patch)
treeff319e3f67a0e74cd2e86c662c0c0c2c0ca190b8 /testscripts
parent93615472844ddbf5c530ad911332e5f316aa21b1 (diff)
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ximcp: Prevent memory leak & double free if multiple %L in string
In the highly unlikely event that TransFileName was passed a path containing multiple %L entries, for each entry it would call _XlcFileName, leaking the previous results, and then for each entry it would copy from that pointer and free it, resulting in invalid pointers & possible double frees for each use after the first one freed it. Error: Use after free (CWE 416) Use after free of pointer 'lcCompose' at line 358 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'. Previously freed at line 360 with free. Error: Use after free (CWE 416) Use after free of pointer 'lcCompose' at line 359 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'. Previously freed at line 360 with free. Error: Double free (CWE 415) Double free of pointer 'lcCompose' at line 360 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'. Previously freed at line 360 with free. [ This bug was found by the Parfait 0.3.6 bug checking tool. For more information see http://labs.oracle.com/projects/parfait/ ] Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> (cherry picked from commit 6ac417cea1136a3617f5e40f4b106aaa3f48d6c2) Backported-to-NX-by: Ulrich Sibiller <uli42@gmx.de>
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