On Tue, Feb 21, 2017 at 4:46 PM, Kees Cook <keescook(a)chromium.org> wrote:
On Tue, Feb 21, 2017 at 4:39 PM, Chunyu Hu
<chuhu.ncepu(a)gmail.com> wrote:
> I hit the similar panic on Fedora 25. Is it the same issue?
>
>
> [ 2.527391] Freeing unused kernel memory: 1688K (ffffffffbdf66000 -
> ffffffffbe10c000)
> [ 2.535222] Write protecting the kernel read-only data: 14336k
> [ 2.542679] Freeing unused kernel memory: 1892K (ffff94cb30827000 -
> ffff94cb30a00000)
> [ 2.553482] Freeing unused kernel memory: 700K (ffff94cb30d51000 -
> ffff94cb30e00000)
> [ 2.572048] x86/mm: Checked W+X mappings: passed, no W+X pages found.
> Fatal: [ 2.598239] traps: init[1] general protection ip:7fc841bfc642
> sp:7ffc3fd85870 error:0no entropy gathering module dete[ 2.606473] in
> libc-2.24.so[7fc841bc5000+1bd000]
> cted
I would not expect a vsyscall table problem if it's truly using glibc
2.24. Maybe something regressed in glibc? That really looks like an
attempt to call vsyscalls?
There should be a vsyscall error if so, and shouldn't it be a page
fault, not a gpf?
--Andy