f2fs: remove clear SB_INLINECRYPT flag in default_options

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[ Upstream commit ac5eecf481 ]

In f2fs_remount, SB_INLINECRYPT flag will be clear and re-set.
If create new file or open file during this gap, these files
will not use inlinecrypt. Worse case, it may lead to data
corruption if wrappedkey_v0 is enable.

Thread A:                               Thread B:

-f2fs_remount				-f2fs_file_open or f2fs_new_inode
  -default_options
	<- clear SB_INLINECRYPT flag

                                          -fscrypt_select_encryption_impl

  -parse_options
	<- set SB_INLINECRYPT again

Signed-off-by: Yunlei He <heyunlei@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Yunlei He 2024-03-26 14:10:43 +08:00 • committed by Greg Kroah-Hartman

parent 34e0e05161

commit 724429db09

1 changed files with 0 additions and 2 deletions

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fs/f2fs/super.c

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