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ecryptfs: Annotate struct ecryptfs_message with __counted_by

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Add the __counted_by() compiler attribute to the flexible array member
'data' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Tyler Hicks <code@tyhicks.com>
Link: https://patch.msgid.link/20260112115314.739612-2-thorsten.blum@linux.dev
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Thorsten Blum
2026-01-12 12:53:11 +01:00
committed by Kees Cook
parent 7583873c31
commit cc34c669ab
1 changed files with 1 additions and 1 deletions
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2
fs/ecryptfs/ecryptfs_kernel.h
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@@ -359,7 +359,7 @@ struct ecryptfs_message {
/* Inherits from msg_ctx->index */
u32 index;
u32 data_len;
u8 data[];
u8 data[] __counted_by(data_len);
};
struct ecryptfs_msg_ctx {