From 935b8b422b801f8c6a6ac35f5f2493f05279ae9e Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Fri, 23 Aug 2024 14:59:54 +0200 Subject: [PATCH] [3.13] gh-123229: Fix valgrind warning by initializing the f-string buffers to 0 in the tokenizer (GH-123263) (#123264) gh-123229: Fix valgrind warning by initializing the f-string buffers to 0 in the tokenizer (GH-123263) (cherry picked from commit adc5190014efcf7b7a4c5dfc9998faa8345527ed) Signed-off-by: Pablo Galindo Co-authored-by: Pablo Galindo Salgado --- .../2024-08-23-13-08-27.gh-issue-123229.aHm-dw.rst | 2 ++ Parser/lexer/state.c | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) create mode 100644 Misc/NEWS.d/next/Core and Builtins/2024-08-23-13-08-27.gh-issue-123229.aHm-dw.rst diff --git a/Misc/NEWS.d/next/Core and Builtins/2024-08-23-13-08-27.gh-issue-123229.aHm-dw.rst b/Misc/NEWS.d/next/Core and Builtins/2024-08-23-13-08-27.gh-issue-123229.aHm-dw.rst new file mode 100644 index 00000000000..aa9e8d1fa93 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2024-08-23-13-08-27.gh-issue-123229.aHm-dw.rst @@ -0,0 +1,2 @@ +Fix valgrind warning by initializing the f-string buffers to 0 in the +tokenizer. Patch by Pablo Galindo diff --git a/Parser/lexer/state.c b/Parser/lexer/state.c index 647f2919115..1665debea30 100644 --- a/Parser/lexer/state.c +++ b/Parser/lexer/state.c @@ -12,7 +12,8 @@ struct tok_state * _PyTokenizer_tok_new(void) { - struct tok_state *tok = (struct tok_state *)PyMem_Malloc( + struct tok_state *tok = (struct tok_state *)PyMem_Calloc( + 1, sizeof(struct tok_state)); if (tok == NULL) return NULL;