fs/ntfs3: Do copy_to_user out of run_lock

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[ Upstream commit d57431c6f5 ]

In order not to call copy_to_user (from fiemap_fill_next_extent)
we allocate memory in the kernel, fill it and copy it to user memory
after up_read(run_lock).

Reported-by: syzbot+36bb70085ef6edc2ebb9@syzkaller.appspotmail.com
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Konstantin Komarov 2024-06-17 15:14:07 +03:00 • committed by Greg Kroah-Hartman

parent f650148b43

commit 5472b587cf

1 changed files with 72 additions and 3 deletions

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fs/ntfs3/frecord.c

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