linux/fs/ext4/inline.c
Theodore Ts'o edb108a551 ext4: avoid running out of journal credits when appending to an inline file
commit 8bc1379b82 upstream.

Use a separate journal transaction if it turns out that we need to
convert an inline file to use an data block.  Otherwise we could end
up failing due to not having journal credits.

This addresses CVE-2018-10883.

https://bugzilla.kernel.org/show_bug.cgi?id=200071

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2018-09-25 23:47:29 +01:00

1966 lines
48 KiB