https://github.com/torvalds/linux
Revision cacc06215271104b40773c99547c506095db6ad4 authored by Marcelo Ricardo Leitner on 30 November 2015, 16:32:54 UTC, committed by David S. Miller on 03 December 2015, 04:39:46 UTC
Dmitry Vyukov reported that the user could trigger a kernel warning by
using a large len value for getsockopt SCTP_GET_LOCAL_ADDRS, as that
value directly affects the value used as a kmalloc() parameter.

This patch thus switches the allocation flags from all user-controllable
kmalloc size to GFP_USER to put some more restrictions on it and also
disables the warn, as they are not necessary.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 38ee8fb
History
Tip revision: cacc06215271104b40773c99547c506095db6ad4 authored by Marcelo Ricardo Leitner on 30 November 2015, 16:32:54 UTC
sctp: use GFP_USER for user-controlled kmalloc
Tip revision: cacc062
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