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(parent: 4c0d577) | patch
ext4: fix leaking uninitialized memory in fast-commit journal
authorEric Biggers <ebiggers@google.com>
Sun, 6 Nov 2022 22:48:37 +0000 (14:48 -0800)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 9 Dec 2022 02:49:24 +0000 (21:49 -0500)
commit594bc43b410316d70bb42aeff168837888d96810
tree9caa9c31c761376a214d967845948c65525826a8tree | snapshot
parent4c0d5778385cb3618ff26a561ce41de2b7d9de70commit | diff
ext4: fix leaking uninitialized memory in fast-commit journal

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: aa75f4d3daae ("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>
fs/ext4/fast_commit.c diff | blob | history
Domain: System / Kernel;