[PATCH 0/5] exec: binfmt_misc: fix use-after-free, kill iname[BINPRM_BUF_SIZE]

From	Oleg Nesterov <oleg@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH 0/5] exec: binfmt_misc: fix use-after-free, kill iname[BINPRM_BUF_SIZE]
Date	2017-09-22 16:40 +0200
Message-ID	<usxhw-7bZ-15@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Note: 5/5 depends on

	-extern int bprm_change_interp(char *interp, struct linux_binprm *bprm);
	+extern int bprm_change_interp(const char *interp, struct linux_binprm *bprm);

change in

	[PATCH] exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array
	https://marc.info/?l=linux-kernel&m=150575251328591

I sent before.

Looks like this code was always wrong, then 948b701a607f ("binfmt_misc: add persistent
opened binary handler for containers") added more problems.

Oleg.

 fs/binfmt_misc.c | 56 ++++++++++++++++++++++++++------------------------------
 1 file changed, 26 insertions(+), 30 deletions(-)

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[PATCH 0/5] exec: binfmt_misc: fix use-after-free, kill  iname[BINPRM_BUF_SIZE] Oleg Nesterov <oleg@redhat.com> - 2017-09-22 16:40 +0200
  [PATCH 1/5] exec: binfmt_misc: don't nullify Node->dentry in  kill_node() Oleg Nesterov <oleg@redhat.com> - 2017-09-22 16:40 +0200
  [PATCH 4/5] exec: binfmt_misc: fix race between load_misc_binary()  and kill_node() Oleg Nesterov <oleg@redhat.com> - 2017-09-22 16:40 +0200
  Re: [PATCH 0/5] exec: binfmt_misc: fix use-after-free, kill iname[BINPRM_BUF_SIZE] Kees Cook <keescook@chromium.org> - 2017-09-22 17:30 +0200

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