Commit ba041775 authored by Chengguang Xu's avatar Chengguang Xu Committed by Greg Kroah-Hartman

isofs: fix potential memory leak in mount option parsing

[ Upstream commit 4f34a513 ]

When specifying string type mount option (e.g., iocharset)
several times in a mount, current option parsing may
cause memory leak. Hence, call kfree for previous one
in this case. Meanwhile, check memory allocation result
for it.
Signed-off-by: default avatarChengguang Xu <>
Signed-off-by: default avatarJan Kara <>
Signed-off-by: default avatarSasha Levin <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent d27cd5cb
......@@ -394,7 +394,10 @@ static int parse_options(char *options, struct iso9660_options *popt)
case Opt_iocharset:
popt->iocharset = match_strdup(&args[0]);
if (!popt->iocharset)
return 0;
case Opt_map_a:
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