[Qemu-commits] [qemu/qemu] 360f0a: linux-user: Use signed lengths in uaccess.c

[Peter Maydell]

  Branch: refs/heads/staging
  Home:   https://github.com/qemu/qemu
  Commit: 360f0abdc51652b06a3718ed43a8688562e69ca4
      
https://github.com/qemu/qemu/commit/360f0abdc51652b06a3718ed43a8688562e69ca4
  Author: Richard Henderson <richard.henderson@linaro.org>
  Date:   2021-04-07 (Wed, 07 Apr 2021)

  Changed paths:
    M linux-user/qemu.h
    M linux-user/uaccess.c

  Log Message:
  -----------
  linux-user: Use signed lengths in uaccess.c

Partially revert 09f679b62dff, but only for the length arguments.
Instead of reverting to long, use ssize_t.  Reinstate the > 0 check
in unlock_user.

Fixes: 09f679b62dff
Reported-by: Coverity (CID 1446711)
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210315204004.2025219-1-richard.henderson@linaro.org>
[lv: remove superfluous semicolon]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>


  Commit: 285f6f57fa776c4247b29e8cf6a5dc23d40c5f35
      
https://github.com/qemu/qemu/commit/285f6f57fa776c4247b29e8cf6a5dc23d40c5f35
  Author: Peter Maydell <peter.maydell@linaro.org>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M linux-user/qemu.h
    M linux-user/uaccess.c

  Log Message:
  -----------
  Merge remote-tracking branch 
'remotes/vivier2/tags/linux-user-for-6.0-pull-request' into staging

linux-user pull request 20210409

Fix lock_user()/unlock_user()

# gpg: Signature made Fri 09 Apr 2021 14:09:17 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" 
[full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-6.0-pull-request:
  linux-user: Use signed lengths in uaccess.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>


Compare: https://github.com/qemu/qemu/compare/ce69aa92d71e...285f6f57fa77