Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-08-22 Thread Mark Rutland
On Tue, Jul 11, 2017 at 03:16:28PM +0100, Mark Rutland wrote: > Hi, > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > correctly, allowing unprivileged users to create an unkillable task which can > lock up the system. Please check whether your arch is affected. >From

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-08-22 Thread Mark Rutland
On Tue, Jul 11, 2017 at 03:16:28PM +0100, Mark Rutland wrote: > Hi, > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > correctly, allowing unprivileged users to create an unkillable task which can > lock up the system. Please check whether your arch is affected. >From

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
On Tue, Jul 11, 2017 at 08:04:50AM -0700, Andy Lutomirski wrote: > On Tue, Jul 11, 2017 at 7:16 AM, Mark Rutland wrote: > > Hi, > > > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > > correctly, allowing unprivileged users to create an unkillable

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
On Tue, Jul 11, 2017 at 08:04:50AM -0700, Andy Lutomirski wrote: > On Tue, Jul 11, 2017 at 7:16 AM, Mark Rutland wrote: > > Hi, > > > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > > correctly, allowing unprivileged users to create an unkillable task which > > can >

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Andy Lutomirski
On Tue, Jul 11, 2017 at 7:16 AM, Mark Rutland wrote: > Hi, > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > correctly, allowing unprivileged users to create an unkillable task which can > lock up the system. Please check whether your arch is

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Andy Lutomirski
On Tue, Jul 11, 2017 at 7:16 AM, Mark Rutland wrote: > Hi, > > Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals > correctly, allowing unprivileged users to create an unkillable task which can > lock up the system. Please check whether your arch is affected. I haven't

[PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
[resending with LAKML's address corrected] Hi, Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals correctly, allowing unprivileged users to create an unkillable task which can lock up the system. Please check whether your arch is affected. AFAICT, most arches don't

[PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
[resending with LAKML's address corrected] Hi, Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals correctly, allowing unprivileged users to create an unkillable task which can lock up the system. Please check whether your arch is affected. AFAICT, most arches don't

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
Hi, It appears that I botched adding LAKML to Cc. Please ignore this posting -- I will resend with LAKML's address corrected. Mark.

Re: [PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
Hi, It appears that I botched adding LAKML to Cc. Please ignore this posting -- I will resend with LAKML's address corrected. Mark.

[PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
Hi, Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals correctly, allowing unprivileged users to create an unkillable task which can lock up the system. Please check whether your arch is affected. AFAICT, most arches don't correctly handle a fatal signal interrupting a

[PATCH 0/2] Fatal signal handing within uaccess faults

2017-07-11 Thread Mark Rutland
Hi, Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals correctly, allowing unprivileged users to create an unkillable task which can lock up the system. Please check whether your arch is affected. AFAICT, most arches don't correctly handle a fatal signal interrupting a