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-prev] [thread-next>] [day] [month] [year] [list]
Date:   Tue, 30 Apr 2019 20:36:13 -0700
From:   William Tu <>
        Linux Kernel Network Developers <>
Subject: Re: [PATCH bpf 1/2] libbpf: fix invalid munmap call

On Tue, Apr 30, 2019 at 5:46 AM Björn Töpel <> wrote:
> From: Björn Töpel <>
> When unmapping the AF_XDP memory regions used for the rings, an
> invalid address was passed to the munmap() calls. Instead of passing
> the beginning of the memory region, the descriptor region was passed
> to munmap.
> When the userspace application tried to tear down an AF_XDP socket,
> the operation failed and the application would still have a reference
> to socket it wished to get rid of.
> Reported-by: William Tu <>
> Fixes: 1cad07884239 ("libbpf: add support for using AF_XDP sockets")
> Signed-off-by: Björn Töpel <>
> ---
Thank you.
Tested-by: William Tu <>

Powered by blists - more mailing lists