wok-current rev 666

linux & busybox: memory leak in unlzma
author Pascal Bellard <pascal.bellard@slitaz.org>
date Wed Apr 23 08:46:02 2008 +0000 (2008-04-23)
parents fb8167e6c7f5
children edd31fe73ba8
files busybox/receipt busybox/stuff/busybox-1.10.1-unlzma.u linux/stuff/linux-lzma-2.6.24.2.u
line diff
     1.1 --- a/busybox/receipt	Wed Apr 23 01:14:59 2008 +0200
     1.2 +++ b/busybox/receipt	Wed Apr 23 08:46:02 2008 +0000
     1.3 @@ -21,6 +21,7 @@
     1.4      patch -p1 < ../stuff/$PACKAGE-$VERSION-dhcpc.u
     1.5      patch -p1 < ../stuff/$PACKAGE-$VERSION-cpio-mkdir.u
     1.6      patch -p1 < ../stuff/$PACKAGE-$VERSION-cpio-mtime.u
     1.7 +    patch -p1 < ../stuff/$PACKAGE-$VERSION-unlzma.u
     1.8      cp ../stuff/$PACKAGE-$VERSION.config .config
     1.9      make oldconfig
    1.10      make && make install
     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/busybox/stuff/busybox-1.10.1-unlzma.u	Wed Apr 23 08:46:02 2008 +0000
     2.3 @@ -0,0 +1,23 @@
     2.4 +--- busybox-1.10.1/archival/libunarchive/decompress_unlzma.c
     2.5 ++++ busybox-1.10.1/archival/libunarchive/decompress_unlzma.c
     2.6 +@@ -491,10 +491,16 @@
     2.7 + 
     2.8 + 	if (full_write(dst_fd, buffer, buffer_pos) != buffer_pos) {
     2.9 +  bad:
    2.10 ++		len = -1;
    2.11 ++	}
    2.12 ++	else {
    2.13 ++		USE_DESKTOP(total_written += buffer_pos;)
    2.14 ++		len = USE_DESKTOP(total_written) + 0;
    2.15 ++	}
    2.16 ++	if (ENABLE_FEATURE_CLEAN_UP) {
    2.17 + 		rc_free(rc);
    2.18 +-		return -1;
    2.19 ++		free(buffer);
    2.20 ++		free(p);
    2.21 + 	}
    2.22 +-	rc_free(rc);
    2.23 +-	USE_DESKTOP(total_written += buffer_pos;)
    2.24 +-	return USE_DESKTOP(total_written) + 0;
    2.25 ++	return len;
    2.26 + }
     3.1 --- a/linux/stuff/linux-lzma-2.6.24.2.u	Wed Apr 23 01:14:59 2008 +0200
     3.2 +++ b/linux/stuff/linux-lzma-2.6.24.2.u	Wed Apr 23 08:46:02 2008 +0000
     3.3 @@ -1624,7 +1624,7 @@
     3.4  
     3.5  --- linux-2.6.24.2/lib/decompress_unlzma.c
     3.6  +++ linux-2.6.24.2/lib/decompress_unlzma.c
     3.7 -@@ -0,0 +1,605 @@
     3.8 +@@ -0,0 +1,601 @@
     3.9  +/* Lzma decompressor for Linux kernel. Shamelessly snarfed
    3.10  + * from busybox 1.1.1
    3.11  + *
    3.12 @@ -2050,20 +2050,20 @@
    3.13  +				prob_lit = prob + mi;
    3.14  +				rc_get_bit(&rc, prob_lit, &mi);
    3.15  +			}
    3.16 ++			if (state < 4)
    3.17 ++				state = 0;
    3.18 ++			else if (state < 10)
    3.19 ++				state -= 3;
    3.20 ++			else
    3.21 ++				state -= 6;
    3.22  +			previous_byte = (uint8_t) mi;
    3.23 -+
    3.24 ++		one_byte:
    3.25  +			buffer[buffer_pos++] = previous_byte;
    3.26  +			if (buffer_pos == header.dict_size) {
    3.27  +				buffer_pos = 0;
    3.28  +				global_pos += header.dict_size;
    3.29  +				writebb((char*)buffer, header.dict_size);
    3.30  +			}
    3.31 -+			if (state < 4)
    3.32 -+				state = 0;
    3.33 -+			else if (state < 10)
    3.34 -+				state -= 3;
    3.35 -+			else
    3.36 -+				state -= 6;
    3.37  +		} else {
    3.38  +			int offset;
    3.39  +			uint16_t *prob_len;
    3.40 @@ -2095,13 +2095,7 @@
    3.41  +							goto fail;
    3.42  +						}
    3.43  +						previous_byte = buffer[pos];
    3.44 -+						buffer[buffer_pos++] = previous_byte;
    3.45 -+						if (buffer_pos == header.dict_size) {
    3.46 -+							buffer_pos = 0;
    3.47 -+							global_pos += header.dict_size;
    3.48 -+							writebb((char*)buffer, header.dict_size);
    3.49 -+						}
    3.50 -+						continue;
    3.51 ++						goto one_byte;
    3.52  +					} else {
    3.53  +						rc_update_bit_1(&rc, prob);
    3.54  +					}
    3.55 @@ -2225,9 +2219,11 @@
    3.56  +		*posp = rc.ptr-rc.buffer;
    3.57  +	}
    3.58  +	large_free(buffer);
    3.59 ++	large_free(p);
    3.60  +	return 0;
    3.61  + fail:
    3.62  +	large_free(buffer);
    3.63 ++	large_free(p);
    3.64  +	return -1;
    3.65  +}
    3.66