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authorPhillip Lougher <phillip@lougher.demon.co.uk>2009-12-14 21:45:19 +0000
committerH. Peter Anvin <hpa@zytor.com>2009-12-15 14:04:19 -0800
commitd4529862cae4de19fda8d4bbcbddc60f3e48a4cf (patch)
tree40a4dab06fed9c98779adc2201800eaa942263f3 /lib
parentc1e7c3ae59b065bf7ff24a05cb609b2f9e314db6 (diff)
downloadlinux-2.6.34-ux500-d4529862cae4de19fda8d4bbcbddc60f3e48a4cf.tar.gz
bzip2: Add missing checks for malloc returning NULL
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> LKML-Reference: <4b26b1ef.ln20bM9Mn4gzB21L%phillip@lougher.demon.co.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/decompress_bunzip2.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
index 76074209f9a..a4e971dee10 100644
--- a/lib/decompress_bunzip2.c
+++ b/lib/decompress_bunzip2.c
@@ -637,6 +637,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
/* Allocate bunzip_data. Most fields initialize to zero. */
bd = *bdp = malloc(i);
+ if (!bd)
+ return RETVAL_OUT_OF_MEMORY;
memset(bd, 0, sizeof(struct bunzip_data));
/* Setup input buffer */
bd->inbuf = inbuf;
@@ -664,6 +666,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
bd->dbufSize = 100000*(i-BZh0);
bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
+ if (!bd->dbuf)
+ return RETVAL_OUT_OF_MEMORY;
return RETVAL_OK;
}
@@ -686,7 +690,7 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
if (!outbuf) {
error("Could not allocate output bufer");
- return -1;
+ return RETVAL_OUT_OF_MEMORY;
}
if (buf)
inbuf = buf;
@@ -694,6 +698,7 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
inbuf = malloc(BZIP2_IOBUF_SIZE);
if (!inbuf) {
error("Could not allocate input bufer");
+ i = RETVAL_OUT_OF_MEMORY;
goto exit_0;
}
i = start_bunzip(&bd, inbuf, len, fill);
@@ -720,11 +725,14 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
} else if (i == RETVAL_UNEXPECTED_OUTPUT_EOF) {
error("Compressed file ends unexpectedly");
}
+ if (!bd)
+ goto exit_1;
if (bd->dbuf)
large_free(bd->dbuf);
if (pos)
*pos = bd->inbufPos;
free(bd);
+exit_1:
if (!buf)
free(inbuf);
exit_0: