lkml.org 
[lkml]   [2017]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: KASAN: use-after-free Read in sock_release
On Thu, Nov 30, 2017 at 02:07:19AM +0000, Al Viro wrote:
> Incidentally, grepping for sys_close() shows another piece of fun in
> net/netfilter/xt_bpf.c. Folks, ONCE DESCRIPTOR IS INSTALLED, THAT'S
> IT; THERE'S NO REMOVING IT ON FAILURE EXITS. sys_close() should
> never, ever be used that way. Sigh...

Would be great do unexport the thing. Except that we also have
binfmt_misc (which looks legit) and autofs4, which on crack decided
that close() isn't a fun syscall, they'd much rather have an ioctl
that does exactly the same..

\
 
 \ /
  Last update: 2017-11-30 14:19    [W:0.065 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site