let import_iovec deal with compat_iovecs as well

David Laight David.Laight at ACULAB.COM
Sat Sep 19 14:24:10 UTC 2020


From: Christoph Hellwig
> Sent: 18 September 2020 13:45
> 
> this series changes import_iovec to transparently deal with comat iovec
> structures, and then cleanups up a lot of code dupliation.  But to get
> there it first has to fix the pre-existing bug that io_uring compat
> contexts don't trigger the in_compat_syscall() check.  This has so far
> been relatively harmless as very little code callable from io_uring used
> the check, and even that code that could be called usually wasn't.

I thought about that change while writing my import_iovec() => iovec_import()
patch - and thought that the io_uring code would (as usual) cause grief.

Christoph - did you see those patches?
	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)



More information about the Linux-security-module-archive mailing list