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ext4: annotate struct fname with __counted_by()

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Add the __counted_by compiler attribute to the flexible array member
name to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20241105101813.10864-2-thorsten.blum@linux.dev
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Thorsten Blum 2024-11-05 11:18:14 +01:00 committed by Theodore Ts'o
parent 2bd9077b62
commit de183b2baf
1 changed files with 1 additions and 1 deletions
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fs/ext4/dir.c
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@ -418,7 +418,7 @@ struct fname {
__u32 inode;
__u8 name_len;
__u8 file_type;
char name[];
char name[] __counted_by(name_len);
};
/*