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nexedi
MariaDB
Commits
8ab01e5c
Commit
8ab01e5c
authored
Aug 21, 2008
by
Tatiana A. Nurnberg
Browse files
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Plain Diff
Bug#35616: memory overrun on 64-bit linux on setting large values for keybuffer-size
add'l portability fixes
parents
eeb35b90
645b3fbf
Changes
1
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Side-by-side
Showing
1 changed file
with
27 additions
and
26 deletions
+27
-26
mysys/safemalloc.c
mysys/safemalloc.c
+27
-26
No files found.
mysys/safemalloc.c
View file @
8ab01e5c
...
...
@@ -151,9 +151,10 @@ void *_mymalloc(size_t size, const char *filename, uint lineno, myf MyFlags)
my_errno
=
errno
;
sprintf
(
buff
,
"Out of memory at line %d, '%s'"
,
lineno
,
filename
);
my_message
(
EE_OUTOFMEMORY
,
buff
,
MYF
(
ME_BELL
+
ME_WAITTANG
+
ME_NOREFRESH
));
sprintf
(
buff
,
"needed %u byte (%ldk), memory in use: %ld bytes (%ldk)"
,
(
uint
)
size
,
(
uint
)
(
size
+
1023L
)
/
1024L
,
sf_malloc_max_memory
,
(
sf_malloc_max_memory
+
1023L
)
/
1024L
);
sprintf
(
buff
,
"needed %lu byte (%luk), memory in use: %lu bytes (%luk)"
,
(
ulong
)
size
,
(
ulong
)
(
size
+
1023L
)
/
1024L
,
(
ulong
)
sf_malloc_max_memory
,
(
ulong
)
(
sf_malloc_max_memory
+
1023L
)
/
1024L
);
my_message
(
EE_OUTOFMEMORY
,
buff
,
MYF
(
ME_BELL
+
ME_WAITTANG
+
ME_NOREFRESH
));
}
DBUG_PRINT
(
"error"
,(
"Out of memory, in use: %ld at line %d, '%s'"
,
...
...
@@ -193,7 +194,7 @@ void *_mymalloc(size_t size, const char *filename, uint lineno, myf MyFlags)
if
((
MyFlags
&
MY_ZEROFILL
)
||
!
sf_malloc_quick
)
bfill
(
data
,
size
,
(
char
)
(
MyFlags
&
MY_ZEROFILL
?
0
:
ALLOC_VAL
));
/* Return a pointer to the real data */
DBUG_PRINT
(
"exit"
,(
"ptr:
0x%lx"
,
(
long
)
data
));
DBUG_PRINT
(
"exit"
,(
"ptr:
%p"
,
data
));
if
(
sf_min_adress
>
data
)
sf_min_adress
=
data
;
if
(
sf_max_adress
<
data
)
...
...
@@ -258,7 +259,7 @@ void _myfree(void *ptr, const char *filename, uint lineno, myf myflags)
{
struct
st_irem
*
irem
;
DBUG_ENTER
(
"_myfree"
);
DBUG_PRINT
(
"enter"
,(
"ptr:
0x%lx"
,
(
long
)
ptr
));
DBUG_PRINT
(
"enter"
,(
"ptr:
%p"
,
ptr
));
if
(
!
sf_malloc_quick
)
(
void
)
_sanity
(
filename
,
lineno
);
...
...
@@ -391,12 +392,12 @@ void TERMINATE(FILE *file, uint flag)
{
if
(
file
)
{
fprintf
(
file
,
"Warning: Memory that was not free'ed (%l
d
bytes):
\n
"
,
sf_malloc_cur_memory
);
fprintf
(
file
,
"Warning: Memory that was not free'ed (%l
u
bytes):
\n
"
,
(
ulong
)
sf_malloc_cur_memory
);
(
void
)
fflush
(
file
);
}
DBUG_PRINT
(
"safe"
,(
"Memory that was not free'ed (%l
d
bytes):"
,
sf_malloc_cur_memory
));
DBUG_PRINT
(
"safe"
,(
"Memory that was not free'ed (%l
u
bytes):"
,
(
ulong
)
sf_malloc_cur_memory
));
while
(
irem
)
{
char
*
data
=
(((
char
*
)
irem
)
+
ALIGN_SIZE
(
sizeof
(
struct
st_irem
))
+
...
...
@@ -404,27 +405,29 @@ void TERMINATE(FILE *file, uint flag)
if
(
file
)
{
fprintf
(
file
,
"
\t
%6
u bytes at 0x%09lx
, allocated at line %4u in '%s'"
,
irem
->
datasize
,
(
long
)
data
,
irem
->
linenum
,
irem
->
filename
);
"
\t
%6
lu bytes at %p
, allocated at line %4u in '%s'"
,
(
ulong
)
irem
->
datasize
,
data
,
irem
->
linenum
,
irem
->
filename
);
fprintf
(
file
,
"
\n
"
);
(
void
)
fflush
(
file
);
}
DBUG_PRINT
(
"safe"
,
(
"%6u bytes at 0x%09lx, allocated at line %4d in '%s'"
,
irem
->
datasize
,
(
long
)
data
,
irem
->
linenum
,
irem
->
filename
));
(
"%6lu bytes at %p, allocated at line %4d in '%s'"
,
(
ulong
)
irem
->
datasize
,
data
,
irem
->
linenum
,
irem
->
filename
));
irem
=
irem
->
next
;
}
}
/* Report the memory usage statistics */
if
(
file
&&
flag
)
{
fprintf
(
file
,
"Maximum memory usage: %ld bytes (%ldk)
\n
"
,
sf_malloc_max_memory
,
(
sf_malloc_max_memory
+
1023L
)
/
1024L
);
fprintf
(
file
,
"Maximum memory usage: %lu bytes (%luk)
\n
"
,
(
ulong
)
sf_malloc_max_memory
,
(
ulong
)
(
sf_malloc_max_memory
+
1023L
)
/
1024L
);
(
void
)
fflush
(
file
);
}
DBUG_PRINT
(
"safe"
,(
"Maximum memory usage: %l
d bytes (%ld
k)"
,
sf_malloc_max_memory
,
(
sf_malloc_max_memory
+
1023L
)
/
1024L
));
DBUG_PRINT
(
"safe"
,(
"Maximum memory usage: %l
u bytes (%lu
k)"
,
(
ulong
)
sf_malloc_max_memory
,
(
ulong
)
(
sf_malloc_max_memory
+
1023L
)
/
1024L
));
pthread_mutex_unlock
(
&
THR_LOCK_malloc
);
DBUG_VOID_RETURN
;
}
...
...
@@ -446,8 +449,8 @@ void sf_malloc_report_allocated(void *memory)
sf_malloc_prehunc
);
if
(
data
<=
(
char
*
)
memory
&&
(
char
*
)
memory
<=
data
+
irem
->
datasize
)
{
printf
(
"%
u bytes at 0x%lx
, allocated at line %u in '%s'
\n
"
,
irem
->
datasize
,
(
long
)
data
,
irem
->
linenum
,
irem
->
filename
);
printf
(
"%
lu bytes at %p
, allocated at line %u in '%s'
\n
"
,
(
ulong
)
irem
->
datasize
,
data
,
irem
->
linenum
,
irem
->
filename
);
break
;
}
}
...
...
@@ -470,8 +473,8 @@ static int _checkchunk(register struct st_irem *irem, const char *filename,
irem
->
filename
,
irem
->
linenum
);
fprintf
(
stderr
,
" discovered at %s:%d
\n
"
,
filename
,
lineno
);
(
void
)
fflush
(
stderr
);
DBUG_PRINT
(
"safe"
,(
"Underrun at
0x%lx
, allocated at %s:%d"
,
(
long
)
data
,
irem
->
filename
,
irem
->
linenum
));
DBUG_PRINT
(
"safe"
,(
"Underrun at
%p
, allocated at %s:%d"
,
data
,
irem
->
filename
,
irem
->
linenum
));
flag
=
1
;
}
...
...
@@ -486,10 +489,8 @@ static int _checkchunk(register struct st_irem *irem, const char *filename,
irem
->
filename
,
irem
->
linenum
);
fprintf
(
stderr
,
" discovered at '%s:%d'
\n
"
,
filename
,
lineno
);
(
void
)
fflush
(
stderr
);
DBUG_PRINT
(
"safe"
,(
"Overrun at 0x%lx, allocated at %s:%d"
,
(
long
)
data
,
irem
->
filename
,
irem
->
linenum
));
DBUG_PRINT
(
"safe"
,(
"Overrun at %p, allocated at %s:%d"
,
data
,
irem
->
filename
,
irem
->
linenum
));
flag
=
1
;
}
return
(
flag
);
...
...
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