Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-18 Thread Dmitry Vyukov
On Mon, Mar 15, 2021 at 5:55 PM Ben Dooks wrote: > > On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: > > >>> Still no luck for the moment, can't reproduce it locally, my test is > >>> maybe not that good (I created threads all day long in order to trigger > >>> the put_user of schedule_tail). >

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-18 Thread Ben Dooks
On 18/03/2021 10:05, Dmitry Vyukov wrote: On Thu, Mar 18, 2021 at 10:41 AM Ben Dooks wrote: On 12/03/2021 17:38, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 6:34 PM Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 5:36 PM Ben Dooks wrote: On 12/03/2021 16:34, Ben Dooks wrote: On 12/03/202

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-18 Thread Dmitry Vyukov
On Thu, Mar 18, 2021 at 10:41 AM Ben Dooks wrote: > > On 12/03/2021 17:38, Dmitry Vyukov wrote: > > On Fri, Mar 12, 2021 at 6:34 PM Dmitry Vyukov wrote: > >> > >> On Fri, Mar 12, 2021 at 5:36 PM Ben Dooks > >> wrote: > >>> > >>> On 12/03/2021 16:34, Ben Dooks wrote: > On 12/03/2021 16:30,

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-18 Thread Ben Dooks
On 12/03/2021 17:38, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 6:34 PM Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 5:36 PM Ben Dooks wrote: On 12/03/2021 16:34, Ben Dooks wrote: On 12/03/2021 16:30, Ben Dooks wrote: On 12/03/2021 15:12, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 2:

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-16 Thread Dmitry Vyukov
On Tue, Mar 16, 2021 at 12:35 PM Ben Dooks wrote: > On 12/03/2021 16:25, Alex Ghiti wrote: > > > > > > Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : > >> On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks > >> wrote: > >>> > >>> On 10/03/2021 17:16, Dmitry Vyukov wrote: >

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-16 Thread Ben Dooks
On 16/03/2021 08:52, Dmitry Vyukov wrote: On Mon, Mar 15, 2021 at 10:38 PM Ben Dooks wrote: On 13/03/2021 07:20, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: On 12/03/2021 16:25, Alex Ghiti wrote: Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : On Fri, Mar 12, 2

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-16 Thread Dmitry Vyukov
On Mon, Mar 15, 2021 at 10:38 PM Ben Dooks wrote: > > On 13/03/2021 07:20, Dmitry Vyukov wrote: > > On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: > >> > >> On 12/03/2021 16:25, Alex Ghiti wrote: > >>> > >>> > >>> Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : > On Fri, Mar 12, 2021 at 2:5

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-15 Thread Ben Dooks
On 13/03/2021 07:20, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: On 12/03/2021 16:25, Alex Ghiti wrote: Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 20

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-15 Thread Ben Dooks
On 13/03/2021 07:20, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: Still no luck for the moment, can't reproduce it locally, my test is maybe not that good (I created threads all day long in order to trigger the put_user of schedule_tail). It may of course depend on

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Dmitry Vyukov
On Fri, Mar 12, 2021 at 9:12 PM Ben Dooks wrote: > > On 12/03/2021 16:25, Alex Ghiti wrote: > > > > > > Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : > >> On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks > >> wrote: > >>> > >>> On 10/03/2021 17:16, Dmitry Vyukov wrote: > On Wed, Mar 10, 2021 at 5:

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Ben Dooks
On 12/03/2021 16:25, Alex Ghiti wrote: Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:    0d

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Dmitry Vyukov
On Fri, Mar 12, 2021 at 6:34 PM Dmitry Vyukov wrote: > > On Fri, Mar 12, 2021 at 5:36 PM Ben Dooks wrote: > > > > On 12/03/2021 16:34, Ben Dooks wrote: > > > On 12/03/2021 16:30, Ben Dooks wrote: > > >> On 12/03/2021 15:12, Dmitry Vyukov wrote: > > >>> On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks >

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Dmitry Vyukov
On Fri, Mar 12, 2021 at 5:36 PM Ben Dooks wrote: > > On 12/03/2021 16:34, Ben Dooks wrote: > > On 12/03/2021 16:30, Ben Dooks wrote: > >> On 12/03/2021 15:12, Dmitry Vyukov wrote: > >>> On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks > >>> wrote: > > On 10/03/2021 17:16, Dmitry Vyukov wrote:

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Ben Dooks
On 12/03/2021 16:34, Ben Dooks wrote: On 12/03/2021 16:30, Ben Dooks wrote: On 12/03/2021 15:12, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the followin

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Ben Dooks
On 12/03/2021 16:30, Ben Dooks wrote: On 12/03/2021 15:12, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:    0d7588ab r

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Ben Dooks
On 12/03/2021 15:12, Dmitry Vyukov wrote: On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:0d7588ab riscv: process: Fix no prototype for arc

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Alex Ghiti
Le 3/12/21 à 10:12 AM, Dmitry Vyukov a écrit : On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:0d7588ab riscv: process: Fix no prototype

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Dmitry Vyukov
On Fri, Mar 12, 2021 at 2:50 PM Ben Dooks wrote: > > On 10/03/2021 17:16, Dmitry Vyukov wrote: > > On Wed, Mar 10, 2021 at 5:46 PM syzbot > > wrote: > >> > >> Hello, > >> > >> syzbot found the following issue on: > >> > >> HEAD commit:0d7588ab riscv: process: Fix no prototype for > >> arch_d

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-12 Thread Ben Dooks
On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixe

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-11 Thread Ben Dooks
On 11/03/2021 06:52, Dmitry Vyukov wrote: On Thu, Mar 11, 2021 at 7:50 AM Dmitry Vyukov wrote: On Thu, Mar 11, 2021 at 7:40 AM Alex Ghiti wrote: Hi Ben, Le 3/10/21 à 5:24 PM, Ben Dooks a écrit : On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: He

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread Dmitry Vyukov
On Thu, Mar 11, 2021 at 7:50 AM Dmitry Vyukov wrote: > > On Thu, Mar 11, 2021 at 7:40 AM Alex Ghiti wrote: > > > > Hi Ben, > > > > Le 3/10/21 à 5:24 PM, Ben Dooks a écrit : > > > On 10/03/2021 17:16, Dmitry Vyukov wrote: > > >> On Wed, Mar 10, 2021 at 5:46 PM syzbot > > >> wrote: > > >>> > > >>>

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread Dmitry Vyukov
On Thu, Mar 11, 2021 at 7:40 AM Alex Ghiti wrote: > > Hi Ben, > > Le 3/10/21 à 5:24 PM, Ben Dooks a écrit : > > On 10/03/2021 17:16, Dmitry Vyukov wrote: > >> On Wed, Mar 10, 2021 at 5:46 PM syzbot > >> wrote: > >>> > >>> Hello, > >>> > >>> syzbot found the following issue on: > >>> > >>> HEAD co

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread Alex Ghiti
Hi Ben, Le 3/10/21 à 5:24 PM, Ben Dooks a écrit : On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:    0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. git tree: git://git.ker

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread Ben Dooks
On 10/03/2021 17:16, Dmitry Vyukov wrote: On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixe

Re: [syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread Dmitry Vyukov
On Wed, Mar 10, 2021 at 5:46 PM syzbot wrote: > > Hello, > > syzbot found the following issue on: > > HEAD commit:0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git > fixes > console output: https://syzk

[syzbot] BUG: unable to handle kernel access to user memory in schedule_tail

2021-03-10 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes console output: https://syzkaller.appspot.com/x/log.txt?x=1212c6e6d0 kernel config: ht