From: Peter Zijlstra <peterz@infradead.org>
To: Jessica Yu <jeyu@kernel.org>
Cc: Miroslav Benes <mbenes@suse.cz>,
Josh Poimboeuf <jpoimboe@redhat.com>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
keescook@chromium.org
Subject: Re: [PATCH] module: Harden STRICT_MODULE_RWX
Date: Mon, 6 Apr 2020 16:11:30 +0200 [thread overview]
Message-ID: <20200406141130.GO20730@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200406125336.GA21006@linux-8ccs>
On Mon, Apr 06, 2020 at 02:53:37PM +0200, Jessica Yu wrote:
> > > > > > + for (i = 0; i < hdr->e_shnum; i++) {
> > > > > > + if (sechdrs[i].sh_flags & (SHF_EXECINSTR|SHF_WRITE))
> > > > > > + return -ENOEXEC;
Hehe, I'm well familiar with the brain going funny, as evidenced by the
above... :facepalm:
> Ugh sorry, my brain shorted out and for some reason I mistakenly
> thought the check excluded SHF_WRITE|SHF_EXECINSTR|SHF_ALLOC sections.
> It doesn't obviously. Sorry for the noise.
next prev parent reply other threads:[~2020-04-06 14:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-03 16:37 [PATCH] module: Harden STRICT_MODULE_RWX Peter Zijlstra
2020-04-03 16:56 ` Josh Poimboeuf
2020-04-03 17:08 ` Peter Zijlstra
2020-04-06 9:55 ` Miroslav Benes
2020-04-06 10:46 ` Jessica Yu
2020-04-06 11:27 ` Peter Zijlstra
2020-04-06 12:53 ` Jessica Yu
2020-04-06 14:11 ` Peter Zijlstra [this message]
2020-04-07 7:43 ` Miroslav Benes
2020-04-09 16:55 ` Miroslav Benes
2020-04-10 9:04 ` Jessica Yu
2020-04-03 16:59 ` Josh Poimboeuf
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