On 6/26/24 8:40 PM, Kacper Michajłow wrote:
Fixes use of uninitialized value, reported by MSAN.

Found by OSS-Fuzz.

Signed-off-by: Kacper Michajłow <kaspe...@gmail.com>
---
  libavcodec/jpegxl_parser.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/libavcodec/jpegxl_parser.c b/libavcodec/jpegxl_parser.c
index 8c45e1a1b7..f833f844c4 100644
--- a/libavcodec/jpegxl_parser.c
+++ b/libavcodec/jpegxl_parser.c
@@ -1419,6 +1419,7 @@ static int try_parse(AVCodecParserContext *s, 
AVCodecContext *avctx, JXLParseCon
          }
          cs_buffer = ctx->cs_buffer;
          cs_buflen = FFMIN(sizeof(ctx->cs_buffer) - AV_INPUT_BUFFER_PADDING_SIZE, 
ctx->copied);
+        memset(ctx->cs_buffer + cs_buflen, 0, AV_INPUT_BUFFER_PADDING_SIZE);
      } else {
          cs_buffer = buf;
          cs_buflen = buf_size;

This one looks fine. Per the other comments on the other jxl patch, I think that one is unnecessary, but this one is fine.

I have no comment on the generic patches.

- Leo Izen (Traneptora)
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