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checkpolicy: destroy the class datum if it fails to initialize

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require_class() allocate memory for its variable "class_datum_t *datum"
and calls symtab_init(&datum->permissions, PERM_SYMTAB_SIZE). If this
second call fails, datum is not freed.

Fix this memory leak.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
This commit is contained in:
Nicolas Iooss 2018-05-26 18:15:07 +02:00
parent 29636c5ddc
commit daa00b2899
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GPG Key ID: C191415F340DAAA0
1 changed files with 1 additions and 0 deletions
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checkpolicy/module_compiler.c
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@ -802,6 +802,7 @@ int require_class(int pass)
if ((datum = calloc(1, sizeof(*datum))) == NULL ||
symtab_init(&datum->permissions, PERM_SYMTAB_SIZE)) {
yyerror("Out of memory!");
class_datum_destroy(datum);
return -1;
}
ret =