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From: "Lidong Yan via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Jeff King <peff@peff.net>, Taylor Blau <me@ttaylorr.com>,
	Lidong Yan <502024330056@smail.nju.edu.cn>
Subject: [PATCH v2 0/3] pack-bitmap: fix memory leak if load_bitmap_entries_v1 failed
Date: Tue, 20 May 2025 09:23:07 +0000	[thread overview]
Message-ID: <pull.1962.v2.git.git.1747732991.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1962.git.git.1747052530271.gitgitgadget@gmail.com>

In pack-bitmap.c:load_bitmap_entries_v1, the function read_bitmap_1
allocates a bitmap and reads index data into it. However, if any of the
validation checks following the allocation fail, the allocated bitmap is not
freed, resulting in a memory leak. To avoid this, the validation checks
should be performed before the bitmap is allocated.

Lidong Yan (2):
  pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed
  pack-bitmap: add loading corrupt bitmap_index test

Taylor Blau (1):
  pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed

 pack-bitmap.c           | 29 +++++++-----------------
 t/t5310-pack-bitmaps.sh | 50 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 21 deletions(-)


base-commit: cb96e1697ad6e54d11fc920c95f82977f8e438f8
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1962%2Fbrandb97%2Ffix-pack-bitmap-leak-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1962/brandb97/fix-pack-bitmap-leak-v2
Pull-Request: https://github.com/git/git/pull/1962

Range-diff vs v1:

 1:  00168766edf = 1:  130c3dc5dcd pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed
 -:  ----------- > 2:  b515c278a8f pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed
 -:  ----------- > 3:  5be22d563af pack-bitmap: add loading corrupt bitmap_index test

-- 
gitgitgadget

  parent reply	other threads:[~2025-05-20  9:23 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-12 12:22 [PATCH] pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed Lidong Yan via GitGitGadget
2025-05-12 13:13 ` Jeff King
2025-05-13 17:47   ` Taylor Blau
2025-05-14 13:18     ` Junio C Hamano
2025-05-14 18:03     ` Jeff King
2025-05-15  1:37       ` lidongyan
2025-05-20  9:23 ` Lidong Yan via GitGitGadget [this message]
2025-05-20  9:23   ` [PATCH v2 1/3] " Lidong Yan via GitGitGadget
2025-05-20  9:23   ` [PATCH v2 2/3] " Taylor Blau via GitGitGadget
2025-05-21 23:54     ` Taylor Blau
2025-05-22 15:15       ` lidongyan
2025-05-22 21:22       ` Junio C Hamano
2025-05-20  9:23   ` [PATCH v2 3/3] pack-bitmap: add loading corrupt bitmap_index test Lidong Yan via GitGitGadget
2025-05-22  0:08     ` Taylor Blau
2025-05-22 15:05       ` lidongyan
2025-05-23  0:31         ` Taylor Blau
2025-05-23  7:17           ` lidongyan
2025-05-25  2:06   ` [PATCH v3 0/2] pack-bitmap: fix memory leak if load_bitmap_entries_v1 failed Lidong Yan via GitGitGadget
2025-05-25  2:06     ` [PATCH v3 1/2] pack-bitmap: fix memory leak if `load_bitmap_entries_v1` failed Taylor Blau via GitGitGadget
2025-05-25  2:06     ` [PATCH v3 2/2] pack-bitmap: add load corrupt bitmap test Lidong Yan via GitGitGadget
2025-05-25  2:43     ` [PATCH v4 0/2] pack-bitmap: fix memory leak if load_bitmap failed Lidong Yan via GitGitGadget
2025-05-25  2:43       ` [PATCH v4 1/2] pack-bitmap: fix memory leak if load_bitmap() failed Taylor Blau via GitGitGadget
2025-05-29 15:33         ` Junio C Hamano
2025-05-29 19:57           ` Taylor Blau
2025-05-29 22:04             ` Junio C Hamano
2025-05-30  3:50           ` lidongyan
2025-05-25  2:43       ` [PATCH v4 2/2] pack-bitmap: add load corrupt bitmap test Lidong Yan via GitGitGadget
2025-05-29 15:45         ` Junio C Hamano
2025-05-29 21:21           ` Taylor Blau
2025-05-30  3:53           ` lidongyan
2025-05-29 21:20         ` Taylor Blau
2025-05-30  4:03           ` lidongyan
2025-06-03  3:14       ` [PATCH v5 0/3] pack-bitmap: fix memory leak if load_bitmap failed Lidong Yan via GitGitGadget
2025-06-03  3:14         ` [PATCH v5 1/3] pack-bitmap: fix memory leak if load_bitmap() failed Taylor Blau via GitGitGadget
2025-06-03  3:14         ` [PATCH v5 2/3] pack-bitmap: reword comments in test_bitmap_commits() Lidong Yan via GitGitGadget
2025-06-03 22:13           ` Taylor Blau
2025-06-03  3:14         ` [PATCH v5 3/3] pack-bitmap: add load corrupt bitmap test Lidong Yan via GitGitGadget
2025-06-03 22:14         ` [PATCH v5 0/3] pack-bitmap: fix memory leak if load_bitmap failed Taylor Blau
2025-07-01  5:32         ` [PATCH v6 " Lidong Yan via GitGitGadget
2025-07-01  5:32           ` [PATCH v6 1/3] pack-bitmap: fix memory leak if load_bitmap() failed Taylor Blau via GitGitGadget
2025-07-01  5:32           ` [PATCH v6 2/3] pack-bitmap: reword comments in test_bitmap_commits() Lidong Yan via GitGitGadget
2025-07-01  5:32           ` [PATCH v6 3/3] pack-bitmap: add load corrupt bitmap test Lidong Yan via GitGitGadget
2025-07-07 22:53           ` [PATCH v6 0/3] pack-bitmap: fix memory leak if load_bitmap failed Junio C Hamano
2025-07-08 22:10             ` Taylor Blau
2025-07-08 22:35               ` Junio C Hamano

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