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]
Date:   Fri, 3 May 2019 15:37:46 +0200
From:   David Sterba <>
To:     Stephen Rothwell <>
Cc:     Linux Next Mailing List <>,
        Linux Kernel Mailing List <>,
        Josef Bacik <>
Subject: Re: linux-next: build warning after merge of the btrfs-kdave tree

On Fri, May 03, 2019 at 10:21:05AM +1000, Stephen Rothwell wrote:
> Hi David,
> After merging the btrfs-kdave tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> fs/btrfs/props.c: In function 'inherit_props':
> fs/btrfs/props.c:389:4: warning: 'num_bytes' may be used uninitialized in this function [-Wmaybe-uninitialized]
>     btrfs_block_rsv_release(fs_info, trans->block_rsv,
>     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       num_bytes);
>       ~~~~~~~~~~
> Probably introduced by commit
>   b835a4a3faec ("btrfs: use the existing reserved items for our first prop for inheritance")
> Looks like a false positive to me.

Agreed and gcc 8.3.1 does not report that. Kbuild bot reported that as
well and it uses 7.x.

Powered by blists - more mailing lists