ubifs: Check data node size before truncate

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Check whether the size is within bounds before using it.
If the size is not correct, abort and dump the bad data node.

Cc: Kees Cook <keescook@chromium.org>
Cc: Silvio Cesare <silvio.cesare@gmail.com>
Cc: stable@vger.kernel.org
Fixes: 1e51764a3c ("UBIFS: add new flash file system")
Reported-by: Silvio Cesare <silvio.cesare@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Richard Weinberger <richard@nod.at>

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Richard Weinberger 2018-07-01 23:20:51 +02:00

parent 08acbdd6fd

commit 95a22d2084

1 changed files with 10 additions and 1 deletions

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fs/ubifs/journal.c

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