linux-kernel - Re: [PATCH next] modpost: Initialize builtin

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] [day] [month] [year] [list]

Message-Id: <175906151390.2640739.5095902499304192973.b4-ty@kernel.org>
Date: Sun, 28 Sep 2025 08:11:53 -0400
From: Nathan Chancellor <nathan@...nel.org>
To: Nathan Chancellor <nathan@...nel.org>, Hugh Dickins <hughd@...gle.com>
Cc: Alexey Gladkov <legion@...nel.org>, 
 Masahiro Yamada <masahiroy@...nel.org>, 
 Stephen Rothwell <sfr@...b.auug.org.au>, Nicolas Shier <nsc@...nel.org>, 
 linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH next] modpost: Initialize builtin_modname to stop
 SIGSEGVs


On Sat, 27 Sep 2025 21:28:06 -0700, Hugh Dickins wrote:
> Segmentation fault ./scripts/mod/modpost -o vmlinux.symvers vmlinux.o
> stops the kernel build.  It comes when write_vmlinux_export_c_file()
> tries to buf_printf alias->builtin_modname.  malloc'ed memory is not
> necessarily zeroed.  NULL new->builtin_modname before adding to aliases.
> 
> 

Applied, thanks!

[1/1] modpost: Initialize builtin_modname to stop SIGSEGVs
      https://git.kernel.org/kbuild/c/2ea77fca84f07

Best regards,
-- 
Nathan Chancellor <nathan@...nel.org>