gfs2: Always check inode size of inline inodes

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commit 70376c7ff3 upstream.

Check if the inode size of stuffed (inline) inodes is within the allowed
range when reading inodes from disk (gfs2_dinode_in()).  This prevents
us from on-disk corruption.

The two checks in stuffed_readpage() and gfs2_unstuffer_page() that just
truncate inline data to the maximum allowed size don't actually make
sense, and they can be removed now as well.

Reported-by: syzbot+7bb81dfa9cda07d9cd9d@syzkaller.appspotmail.com
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Andreas Gruenbacher 2022-12-04 17:00:04 +01:00 • committed by Greg Kroah-Hartman

parent 62b11a34a9

commit d458a09844

3 changed files with 3 additions and 5 deletions

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2

fs/gfs2/aops.c

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3

fs/gfs2/bmap.c

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3

fs/gfs2/glops.c

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