On Mon, Apr 27, 2026 at 01:44:24PM +0200, Thorsten Blum wrote: > Add the __counted_by() compiler attribute to the flexible array member > 'data' to improve bounds checking via CONFIG_UBSAN_BOUNDS and > CONFIG_FORTIFY_SOURCE. > > Signed-off-by: Thorsten Blum <[email protected]>
This is again a crippled commit message. I.e. this requires either knowing, remembering and/or cross-referencing "bunch of" unrelated to keyring. I gave up already. BR, Jarkko > --- > Changes in v3: > - Formatting only, do not split the declaration into two lines (Jarkko) > - v2: > https://lore.kernel.org/lkml/[email protected]/ > > Changes in v2: > - Use __aligned(8) as suggested by David > - v1: > https://lore.kernel.org/lkml/[email protected]/ > --- > include/keys/user-type.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/keys/user-type.h b/include/keys/user-type.h > index 386c31432789..30de4f92a721 100644 > --- a/include/keys/user-type.h > +++ b/include/keys/user-type.h > @@ -27,7 +27,7 @@ > struct user_key_payload { > struct rcu_head rcu; /* RCU destructor */ > unsigned short datalen; /* length of this data */ > - char data[] __aligned(__alignof__(u64)); /* actual data */ > + char data[] __aligned(8) __counted_by(datalen); /* actual > data */ > }; > > extern struct key_type key_type_user;
