From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.delayed.space (delayed.space [195.231.85.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4567474C14 for ; Tue, 10 Mar 2026 00:54:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.231.85.169 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773104068; cv=none; b=ir1TZxJamxc3qCoUsfjTfIo/g/dV04UK2m6eJAaTmpqJv1tu7oBaYyNlJ0MKRZV6vV8yjQzx4TZmHN2reIZ+fqyWCv0P7f8uvxVK+HTHimJLiwFv0CYh0jYPdTzJqBDYPp66OTQKR7ggFkYx6EiRmdXpu+qx234im2p12D2R8u0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773104068; c=relaxed/simple; bh=UjGbU8TYJWBK/s2Mb9kTDB1MKCZmt/RzYppMz4Jkmy8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=l8JKFwTVZ4Dn9/ENgVSyg3VH4jWL6NWUA9Jkt1JocMGpL8CLXK24xBG995OGEoSkN4CiY5qbB1sSGyEepKHzRz29O1Ba1RDzKPIfB6tJigjN2lOzDvRIFOb5vyN1CqihE6+TuGsN7xEfiq1wlu+km3+TOcCqHO1n0RL3Uz3pN8w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=delayed.space; spf=pass smtp.mailfrom=delayed.space; dkim=pass (2048-bit key) header.d=delayed.space header.i=@delayed.space header.b=RqGY1y/R; arc=none smtp.client-ip=195.231.85.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=delayed.space Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=delayed.space Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=delayed.space header.i=@delayed.space header.b="RqGY1y/R" From: Mirko Faina DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=delayed.space; s=dkim; t=1773104064; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MFsty6tLVhHwk4jTIwzvnZHOAExJIditK6MdpjLtHIo=; b=RqGY1y/RbIW+Fw+zy1FB8PjYa/KWxruuq6vo1hgFBUX7eZukBF6nka5Le4eBOIGwYz/zOO ylm4uvub37H58kgcJLKz/KJukQmRdWuSIkqvZJaJv/n9GdU9q6s78zYsT0zczK0ooVczKo cF0vXR2s2aeyN1PfOXbqafJ877bZaJt3aauEoLoHmOhKAaTF4gaYeBdu3mgZ4sG1ZxM2AQ J3ltGY86j5VHq5lzT0OapbYgU1UOLLyzEwEdSBRtQNzh0LiGiXCReLgFIXVPgVFgDKlpdj wxWc8l94Uui6ojkDgzNP2WM1O4iSOaAKwFEDJbbKhSeBfHrDmBw2e1AsMi/Y9g== Authentication-Results: mail.delayed.space; auth=pass smtp.mailfrom=mroik@delayed.space To: git@vger.kernel.org Cc: Mirko Faina , Junio C Hamano Subject: [PATCH v2] apply.c: fix -p argument parsing Date: Tue, 10 Mar 2026 01:54:07 +0100 Message-ID: <20260310005408.2022216-1-mroik@delayed.space> In-Reply-To: <20260309232700.553168-1-mroik@delayed.space> References: <20260309232700.553168-1-mroik@delayed.space> Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Bar: ----- "git apply" has an option -p that takes an integer as its argument. Unfortunately the function apply_option_parse_p() in charge of parsing this argument uses atoi() to convert from string to integer, which allows a non-digit after the number (e.g. "1q") to be silently ignored. As a consequence, an argument that does not begin with a digit silently becomes a zero. Despite this command working fine when a non-positive argument is passed, it might be useful for the end user to know that their input contains non-digits that might've been unintended. Replace atoi() with strtol_i() to catch malformed inputs. Signed-off-by: Mirko Faina --- apply.c | 3 ++- t/t4103-apply-binary.sh | 19 +++++++++++++++++++ t/t4103/patch | 16 ++++++++++++++++ 3 files changed, 37 insertions(+), 1 deletion(-) create mode 100644 t/t4103/patch diff --git a/apply.c b/apply.c index b6dd1066a0..61df3bdcd0 100644 --- a/apply.c +++ b/apply.c @@ -4981,7 +4981,8 @@ static int apply_option_parse_p(const struct option *opt, BUG_ON_OPT_NEG(unset); - state->p_value = atoi(arg); + if (strtol_i(arg, 10, &state->p_value) < 0 || state->p_value < 0) + die(" has to be a non-negative integer"); state->p_value_known = 1; return 0; } diff --git a/t/t4103-apply-binary.sh b/t/t4103-apply-binary.sh index 8e302a5a57..d9dc884946 100755 --- a/t/t4103-apply-binary.sh +++ b/t/t4103-apply-binary.sh @@ -53,6 +53,25 @@ test_expect_success 'setup' ' ) ' +test_expect_success 'git apply -p 1 patch' ' + test_when_finished "rm -rf result t" && + git apply -p 1 $TEST_DIRECTORY/t4103/patch && + ls -l | sed -e "/[[:space:]]t$/!d" >result && + test_line_count = 1 result +' + +test_expect_success 'git apply -p malformed patch' ' + test_must_fail git apply -p malformed $TEST_DIRECTORY/t4103/patch +' + +test_expect_success 'git apply -p 2q patch' ' + test_must_fail git apply -p 2q $TEST_DIRECTORY/t4103/patch +' + +test_expect_success 'git apply -p -1 patch' ' + test_must_fail git apply -p -1 $TEST_DIRECTORY/t4103/patch +' + test_expect_success 'stat binary diff -- should not fail.' \ 'git checkout main && git apply --stat --summary B.diff' diff --git a/t/t4103/patch b/t/t4103/patch new file mode 100644 index 0000000000..c4511bb708 --- /dev/null +++ b/t/t4103/patch @@ -0,0 +1,16 @@ +From 90ad11d5b2d437e82d4d992f72fb44c2227798b5 Mon Sep 17 00:00:00 2001 +From: Mroik +Date: Mon, 9 Mar 2026 23:25:00 +0100 +Subject: [PATCH] Test + +--- + t/test/test | 0 + 1 file changed, 0 insertions(+), 0 deletions(-) + create mode 100644 t/test/test + +diff --git a/t/test/test b/t/test/test +new file mode 100644 +index 0000000000..e69de29bb2 +-- +2.53.0.851.ga537e3e6e9 + -- 2.53.0.851.ga537e3e6e9