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(parent: b2b78f5) | patch
ext4: verify dir block before splitting it
authorJan Kara <jack@suse.cz>
Wed, 18 May 2022 09:33:28 +0000 (11:33 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 14 Jun 2022 14:53:52 +0000 (16:53 +0200)
commitd27d3caddbeff10871982d5e25e6557be0fdc29a
treec9f855a695f5980cdc40bb28a215dbf8e61da868tree
parentb2b78f5bf2d453dda3903955efee059260787a42commit | diff
ext4: verify dir block before splitting it

commit 46c116b920ebec58031f0a78c5ea9599b0d2a371 upstream.

Before splitting a directory block verify its directory entries are sane
so that the splitting code does not access memory it should not.

Cc: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220518093332.13986-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ext4/namei.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git