linux-kernel - [PATCH 0/2] string.c: Add wcslen()

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20250325-string-add-wcslen-for-llvm-opt-v1-0-b8f1e2c17888@kernel.org>
Date: Tue, 25 Mar 2025 08:45:17 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Kees Cook <kees@...nel.org>
Cc: Andy Shevchenko <andy@...nel.org>, 
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>, 
 Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, 
 Ard Biesheuvel <ardb@...nel.org>, linux-kernel@...r.kernel.org, 
 linux-hardening@...r.kernel.org, llvm@...ts.linux.dev, 
 linux-efi@...r.kernel.org, stable@...r.kernel.org, 
 Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH 0/2] string.c: Add wcslen()

Hi all,

A recent LLVM change [1] introduces a call to wcslen() in
fs/smb/client/smb2pdu.c through UniStrcat() via
alloc_path_with_tree_prefix(). Similar to the bcmp() and stpcpy()
additions that happened in 5f074f3e192f and 1e1b6d63d634, add wcslen()
to fix the linkage failure.

The second change is RFC because it makes the first change a little more
convoluted for the sake of making it externally available, which may or
may not be desirable. See the commit message for more details.

[1]: https://github.com/llvm/llvm-project/commit/9694844d7e36fd5e01011ab56b64f27b867aa72d

---
Nathan Chancellor (2):
      lib/string.c: Add wcslen()
      [RFC] wcslen() prototype in string.h

 drivers/firmware/efi/libstub/printk.c |  4 ++--
 include/linux/string.h                |  2 ++
 lib/string.c                          | 11 +++++++++++
 3 files changed, 15 insertions(+), 2 deletions(-)
---
base-commit: 78ab93c78fb31c5dfe207318aa2b7bd4e41f8dba
change-id: 20250324-string-add-wcslen-for-llvm-opt-705791db92c0

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