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| author | Joseph Sutton <josephsutton@catalyst.net.nz> | 2022-03-08 12:11:51 +1300 |
|---|---|---|
| committer | Andrew Bartlett <abartlet@samba.org> | 2022-05-12 02:22:35 +0000 |
| commit | 41b88d35ce6b120a1252093ea55ef80b7685e71e (patch) | |
| tree | 1491063ce92fbd80ff7d9c4aedd245177de2e0e8 /lib/compression | |
| parent | 0c813ee56377c51bf4be786633b863f85a5f540e (diff) | |
| download | samba-41b88d35ce6b120a1252093ea55ef80b7685e71e.tar.gz | |
compression: Add bounds check for first output buffer write
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Diffstat (limited to 'lib/compression')
| -rw-r--r-- | lib/compression/lzxpress.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/compression/lzxpress.c b/lib/compression/lzxpress.c index 65feed0aa73..647545bbac3 100644 --- a/lib/compression/lzxpress.c +++ b/lib/compression/lzxpress.c @@ -73,9 +73,11 @@ ssize_t lzxpress_compress(const uint8_t *uncompressed, } uncompressed_pos = 0; + compressed_pos = 0; indic = 0; + CHECK_OUTPUT_BYTES(sizeof(uint32_t)); *(uint32_t *)compressed = 0; - compressed_pos = sizeof(uint32_t); + compressed_pos += sizeof(uint32_t); indic_pos = 0; indic_bit = 0; |