linux/fs/ntfs3/ntfs.h
Dan Carpenter 201a2bdda1 fs/ntfs3: Prevent integer overflow in hdr_first_de()
[ Upstream commit 6bb81b94f7 ]

The "de_off" and "used" variables come from the disk so they both need to
check.  The problem is that on 32bit systems if they're both greater than
UINT_MAX - 16 then the check does work as intended because of an integer
overflow.

Fixes: 60ce8dfde0 ("fs/ntfs3: Fix wrong if in hdr_first_de")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-04-10 14:39:23 +02:00

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