From: Tristan Madani <tristmd@gmail.com>
To: Viacheslav Dubeyko <slava@dubeyko.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/2] hfs/hfsplus: fix OOB access and uninit-value in bnode operations
Date: Tue, 5 May 2026 11:12:57 +0000 [thread overview]
Message-ID: <20260505111300.3592757-1-tristmd@gmail.com> (raw)
In-Reply-To: <20260501110218.29906-1-tristmd@gmail.com>
From: Tristan Madani <tristan@talencesecurity.com>
Two fixes for long-standing syzbot reports in the HFS/HFS+ B-tree node
handling code.
Changes since v1 (20260501110218.29906-{1..3}-tristmd@gmail.com):
- Patch 1: use (u64) widening cast per Dubeyko's feedback
- Patch 2: memset inside hfs_bnode_read() covering all callers in both
fs/hfs/ and fs/hfsplus/, per Dubeyko's feedback
- Dropped patch 3 (NULL deref in hfsplus_create_attributes_file):
already fixed by Dubeyko's patch [1]
[1] https://lore.kernel.org/linux-fsdevel/6601b6ec0de087674f60566db950449c4e821bfc.camel@redhat.com/
Tristan Madani (2):
hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length
hfs/hfsplus: zero-initialize buffer in hfs_bnode_read
fs/hfs/bnode.c | 4 +++-
fs/hfsplus/bnode.c | 2 ++
fs/hfsplus/hfsplus_fs.h | 2 +-
3 files changed, 6 insertions(+), 2 deletions(-)
--
2.47.3
next prev parent reply other threads:[~2026-05-05 11:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 11:02 [PATCH 1/3] hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length Tristan Madani
2026-05-01 11:02 ` [PATCH 2/3] hfs/hfsplus: initialize data buffer in hfs_bnode_read_u16 and hfs_bnode_read_u8 Tristan Madani
2026-05-04 23:29 ` Viacheslav Dubeyko
2026-05-01 11:02 ` [PATCH 3/3] hfsplus: fix null pointer dereference in hfsplus_create_attributes_file Tristan Madani
2026-05-04 23:31 ` Viacheslav Dubeyko
2026-05-04 23:27 ` [PATCH 1/3] hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length Viacheslav Dubeyko
2026-05-05 11:12 ` Tristan Madani [this message]
2026-05-05 11:12 ` [PATCH v2 1/2] " Tristan Madani
2026-05-05 11:12 ` [PATCH v2 2/2] hfs/hfsplus: zero-initialize buffer in hfs_bnode_read Tristan Madani
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