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52 lines
1.4 KiB
52 lines
1.4 KiB
7 years ago
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autofs-5.0.7 - fix parse buffer initialization
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From: Ian Kent <ikent@redhat.com>
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When parsing a master map entry, if the mount point path is longer than
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the following map string the lexical analyzer buffer may not have a null
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terminator where it is expected. If the map name string also contains a
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string that is the same as a map type at the end the map name the map
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name is not constructed correctly because of this lack of a string
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terminator in the buffer.
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---
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CHANGELOG | 1 +
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lib/master_tok.l | 4 +++-
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2 files changed, 4 insertions(+), 1 deletions(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index 34c70fa..276d6ba 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -3,6 +3,7 @@
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- fix nobind sun escaped map entries.
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- fix use cache entry after free in lookup_prune_one_cache().
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- fix ipv6 proximity calculation.
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+- fix parse buffer initialization.
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25/07/2012 autofs-5.0.7
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=======================
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diff --git a/lib/master_tok.l b/lib/master_tok.l
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index 0d6edb7..30abb15 100644
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--- a/lib/master_tok.l
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+++ b/lib/master_tok.l
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@@ -74,7 +74,8 @@ int my_yyinput(char *, int);
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#define unput(c) (*(char *) --line = c)
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#endif
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-char buff[1024];
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+#define BUFF_LEN 1024
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+char buff[BUFF_LEN];
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char *bptr;
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char *optr = buff;
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unsigned int tlen;
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@@ -174,6 +175,7 @@ OPTNTOUT (-n{OPTWS}|-n{OPTWS}={OPTWS}|--negative-timeout{OPTWS}|--negative-timeo
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*bptr = '\0';
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strcpy(master_lval.strtype, buff);
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bptr = buff;
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+ memset(buff, 0, BUFF_LEN);
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return(PATH);
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}
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