Re: [PATCH] MIPS: Fix strnlen_user access check
From: Thomas Bogendoerfer
Date: Fri Apr 16 2021 - 03:23:10 EST
On Thu, Apr 15, 2021 at 11:26:40PM +0200, Thomas Bogendoerfer wrote:
> Commit 04324f44cb69 ("MIPS: Remove get_fs/set_fs") changed the access_ok
> for strnlen_user to check the whole range, which broke some callers
> of strndup_user(). Restore the old behaviour and just check the first byte.
> Fixes: 04324f44cb69 ("MIPS: Remove get_fs/set_fs")
> Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
> arch/mips/include/asm/uaccess.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
applied to mips-next.
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]