From f4dcc2a495c390296296ad262b5a71996d0f6a86 Mon Sep 17 00:00:00 2001 From: Collin Funk Date: Sat, 13 Sep 2025 22:59:05 -0700 Subject: [PATCH] basenc: fix an uninitialized index when decoding an empty file * src/basenc.c (base64_decode_ctx_init_wrapper) (base64url_decode_ctx_init_wrapper) (base32_decode_ctx_init_wrapper) (base32hex_decode_ctx_init_wrapper): Initialize ctx->i to zero. Fixes https://bugs.gnu.org/79444 --- src/basenc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/basenc.c b/src/basenc.c index 5976b1aa68..49740a47b1 100644 --- a/src/basenc.c +++ b/src/basenc.c @@ -393,6 +393,7 @@ static void base64_decode_ctx_init_wrapper (struct base_decode_context *ctx) { base64_decode_ctx_init (&ctx->ctx.base64); + ctx->i = 0; } static bool @@ -449,6 +450,7 @@ static void base64url_decode_ctx_init_wrapper (struct base_decode_context *ctx) { base64_decode_ctx_init (&ctx->ctx.base64); + ctx->i = 0; init_inbuf (ctx); } @@ -497,6 +499,7 @@ static void base32_decode_ctx_init_wrapper (struct base_decode_context *ctx) { base32_decode_ctx_init (&ctx->ctx.base32); + ctx->i = 0; } static bool @@ -576,6 +579,7 @@ static void base32hex_decode_ctx_init_wrapper (struct base_decode_context *ctx) { base32_decode_ctx_init (&ctx->ctx.base32); + ctx->i = 0; init_inbuf (ctx); } -- 2.47.3