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wine
wine-winehq
Commits
dbd70d09
Commit
dbd70d09
authored
May 20, 2012
by
Eric Pouech
Committed by
Alexandre Julliard
May 21, 2012
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Plain Diff
dbghelp: Protect COFF line number parsing against out of bounds access.
parent
e46d650d
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1 changed file
with
18 additions
and
18 deletions
+18
-18
coff.c
dlls/dbghelp/coff.c
+18
-18
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dlls/dbghelp/coff.c
View file @
dbd70d09
...
...
@@ -424,26 +424,26 @@ DECLSPEC_HIDDEN BOOL coff_process_info(const struct msc_debug_info* msc_dbg)
* If we have spilled onto the next entrypoint, then
* bump the counter..
*/
for
(;
;
)
for
(;
l
+
1
<
coff_files
.
files
[
j
].
neps
;
l
++
)
{
if
(
l
+
1
>=
coff_files
.
files
[
j
].
neps
)
break
;
symt_get_address
(
coff_files
.
files
[
j
].
entries
[
l
+
1
],
&
addr
);
if
(((
msc_dbg
->
module
->
module
.
BaseOfImage
+
linepnt
->
Type
.
VirtualAddress
)
<
addr
))
if
(
symt_get_address
(
coff_files
.
files
[
j
].
entries
[
l
+
1
],
&
addr
)
&&
msc_dbg
->
module
->
module
.
BaseOfImage
+
linepnt
->
Type
.
VirtualAddress
<
addr
)
{
if
(
coff_files
.
files
[
j
].
entries
[
l
+
1
]
->
tag
==
SymTagFunction
)
{
/*
* Add the line number. This is always relative to the
* start of the function, so we need to subtract that offset
* first.
*/
symt_add_func_line
(
msc_dbg
->
module
,
(
struct
symt_function
*
)
coff_files
.
files
[
j
].
entries
[
l
+
1
],
coff_files
.
files
[
j
].
compiland
->
source
,
linepnt
->
Linenumber
,
msc_dbg
->
module
->
module
.
BaseOfImage
+
linepnt
->
Type
.
VirtualAddress
-
addr
);
}
break
;
l
++
;
}
if
(
coff_files
.
files
[
j
].
entries
[
l
+
1
]
->
tag
==
SymTagFunction
)
{
/*
* Add the line number. This is always relative to the
* start of the function, so we need to subtract that offset
* first.
*/
symt_get_address
(
coff_files
.
files
[
j
].
entries
[
l
+
1
],
&
addr
);
symt_add_func_line
(
msc_dbg
->
module
,
(
struct
symt_function
*
)
coff_files
.
files
[
j
].
entries
[
l
+
1
],
coff_files
.
files
[
j
].
compiland
->
source
,
linepnt
->
Linenumber
,
msc_dbg
->
module
->
module
.
BaseOfImage
+
linepnt
->
Type
.
VirtualAddress
-
addr
);
}
}
}
}
...
...
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