Re: [PATCH 31/32] ext4: strong binding of xattr inode references

From	Theodore Ts'o <tytso@mit.edu>
Newsgroups	linux.kernel
Subject	Re: [PATCH 31/32] ext4: strong binding of xattr inode references
Date	2017-06-22 18:00 +0200
Message-ID	<tVcGv-6LO-43@gated-at.bofh.it> (permalink)
References	<tUZzz-6c3-5@gated-at.bofh.it> <tUZzA-6c3-29@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Wed, Jun 21, 2017 at 06:49:38PM -0700, Tahsin Erdogan wrote:
> To verify that a xattr entry is not pointing to the wrong xattr inode,
> we currently check that the target inode has EXT4_EA_INODE_FL flag set and
> also the entry size matches the target inode size.
> 
> For stronger validation, also incorporate crc32c hash of the value into
> the e_hash field. This is done regardless of whether the entry lives in
> the inode body or external attribute block.
> 
> Signed-off-by: Tahsin Erdogan <tahsin@google.com>

Added to the ext4 patch queue, thanks.

					- Ted

Thread

[PATCH 24/32] ext2, ext4: make mb block cache names more explicit Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
  [PATCH 26/32] ext4: cleanup transaction restarts during inode deletion Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
    Re: [PATCH 26/32] ext4: cleanup transaction restarts during inode  deletion Theodore Ts'o <tytso@mit.edu> - 2017-06-22 17:50 +0200
  [PATCH 25/32] ext4: add ext4_is_quota_file() Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
    Re: [PATCH 25/32] ext4: add ext4_is_quota_file() Theodore Ts'o <tytso@mit.edu> - 2017-06-22 17:40 +0200
  [PATCH 32/32] ext4: add nombcache mount option Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
    Re: [PATCH 32/32] ext4: add nombcache mount option Theodore Ts'o <tytso@mit.edu> - 2017-06-22 18:10 +0200
  [PATCH 30/32] ext4: eliminate xattr entry e_hash recalculation for removes Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
    Re: [PATCH 30/32] ext4: eliminate xattr entry e_hash recalculation  for removes Theodore Ts'o <tytso@mit.edu> - 2017-06-22 18:00 +0200
  [PATCH 31/32] ext4: strong binding of xattr inode references Tahsin Erdogan <tahsin@google.com> - 2017-06-22 04:00 +0200
    Re: [PATCH 31/32] ext4: strong binding of xattr inode references Theodore Ts'o <tytso@mit.edu> - 2017-06-22 18:00 +0200
  Re: [PATCH 24/32] ext2, ext4: make mb block cache names more explicit Theodore Ts'o <tytso@mit.edu> - 2017-06-22 17:40 +0200
  Re: [PATCH 27/32] ext4: xattr inode deduplication Theodore Ts'o <tytso@mit.edu> - 2017-06-22 18:00 +0200

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