From 8bc1379b82b8e809eef77a9fedbb75c6c297be19 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 16 Jun 2018 23:41:59 -0400 Subject: ext4: avoid running out of journal credits when appending to an inline file 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 Cc: stable@kernel.org --- fs/ext4/ext4.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 856b6a54d82b..859d6433dcc1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3013,9 +3013,6 @@ extern int ext4_inline_data_fiemap(struct inode *inode, struct iomap; extern int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap); -extern int ext4_try_to_evict_inline_data(handle_t *handle, - struct inode *inode, - int needed); extern int ext4_inline_data_truncate(struct inode *inode, int *has_inline); extern int ext4_convert_inline_data(struct inode *inode); -- cgit v1.2.3