ext4: fix leaking uninitialized memory in fast-commit journal

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commit 594bc43b41 upstream.

When space at the end of fast-commit journal blocks is unused, make sure
to zero it out so that uninitialized memory is not leaked to disk.

Fixes: aa75f4d3da ("ext4: main fast-commit commit path")
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20221106224841.279231-4-ebiggers@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Eric Biggers 2022-11-06 14:48:37 -08:00 • committed by Greg Kroah-Hartman

parent 08d5c8445d

commit 7c1fb65e8c

1 changed files with 5 additions and 0 deletions

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fs/ext4/fast_commit.c

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