]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
ext4: don't allow any modifications to an immutable file
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 10 Jun 2019 01:41:41 +0000 (21:41 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 10 Jun 2019 01:41:41 +0000 (21:41 -0400)
commit2e53840362771c73eb0a5ff71611507e64e8eecd
treefa46d95e468009f30162020ddb03322ebba1f803
parenta49773064bc2284bf7fe57c3492897135f65a37c
ext4: don't allow any modifications to an immutable file

Don't allow any modifications to a file that's marked immutable, which
means that we have to flush all the writable pages to make the readonly
and we have to check the setattr/setflags parameters more closely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
fs/ext4/ioctl.c