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authorThorsten Blum <[email protected]>2024-08-24 15:57:41 +0200
committerKent Overstreet <[email protected]>2024-09-09 09:41:49 -0400
commit86e92eeeb23741a072fe7532db663250ff2e726a (patch)
tree218ae66165c2e8a5360f8bd29b619e5ea3066e15
parent2c6a7bff2a2eb2d7f183fbe1e9800ae278f415c7 (diff)
bcachefs: Annotate struct bch_xattr with __counted_by()
Add the __counted_by compiler attribute to the flexible array member x_name to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Signed-off-by: Thorsten Blum <[email protected]> Signed-off-by: Kent Overstreet <[email protected]>
-rw-r--r--fs/bcachefs/xattr_format.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/xattr_format.h b/fs/bcachefs/xattr_format.h
index e9f810539552..c7916011ef34 100644
--- a/fs/bcachefs/xattr_format.h
+++ b/fs/bcachefs/xattr_format.h
@@ -13,7 +13,7 @@ struct bch_xattr {
__u8 x_type;
__u8 x_name_len;
__le16 x_val_len;
- __u8 x_name[];
+ __u8 x_name[] __counted_by(x_name_len);
} __packed __aligned(8);
#endif /* _BCACHEFS_XATTR_FORMAT_H */