linux-kernel - Re: [PATCH 3/3] kprobe/static_call: Restore missing static_call_text

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210628232447.540fe9d53f0d2011d6590379@kernel.org>
Date:   Mon, 28 Jun 2021 23:24:47 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     jpoimboe@...hat.com, jbaron@...mai.com, rostedt@...dmis.org,
        ardb@...nel.org, naveen.n.rao@...ux.ibm.com,
        anil.s.keshavamurthy@...el.com, davem@...emloft.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] kprobe/static_call: Restore missing
 static_call_text_reserved()

On Mon, 28 Jun 2021 13:34:58 +0200
Peter Zijlstra <peterz@...radead.org> wrote:

> On Mon, Jun 28, 2021 at 01:24:12PM +0200, Peter Zijlstra wrote:
> > Restore two hunks from commit 6333e8f73b83 ("static_call: Avoid
> > kprobes on inline static_call()s") that went walkabout.
> > 
> > Fixes: 76d4acf22b48 ("Merge tag 'perf-kprobes-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
> 
> FWIW, it was a royal pain in the arse to find that commit...

I think if this is a fix, that fixes static_call introduction commit,
because anyway kprobes has to check the static_call site as a reserved
area for another self code modifying.

Thank you,

-- 
Masami Hiramatsu <mhiramat@...nel.org>