[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 2/9] bzip2: Add missing checks for malloc returning NULL
From: Phillip Lougher <phillip@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Phillip Lougher <phillip@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> --- a/xen/common/bunzip2.c +++ b/xen/common/bunzip2.c @@ -629,6 +629,8 @@ static int INIT start_bunzip(struct bunz /* 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; @@ -656,6 +658,8 @@ static int INIT start_bunzip(struct bunz bd->dbufSize = 100000*(i-BZh0); bd->dbuf = large_malloc(bd->dbufSize * sizeof(int)); + if (!bd->dbuf) + return RETVAL_OUT_OF_MEMORY; return RETVAL_OK; } @@ -677,7 +681,7 @@ STATIC int INIT bunzip2(unsigned char *b if (!outbuf) { error("Could not allocate output bufer"); - return -1; + return RETVAL_OUT_OF_MEMORY; } if (buf) inbuf = buf; @@ -685,6 +689,7 @@ STATIC int INIT bunzip2(unsigned char *b 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); @@ -711,11 +716,14 @@ STATIC int INIT bunzip2(unsigned char *b } 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: _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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