On 6/10/21 4:56 PM, Kees Cook wrote:
|Stack Trace:
| memfd_fcntl+0x0/0x470
| usercopy_abort+0x8a/0x8c
| __check_object_size+0x10e/0x138
| copy_strings+0x1f4/0x38c
| __do_execve_file+0x352/0x848
| EV_Trap+0xcc/0xd0
>>> What was the root cause here? Was it that the
On Thu, Jun 10, 2021 at 06:56:48PM +, Vineet Gupta wrote:
> On 6/10/21 10:02 AM, Kees Cook wrote:
> > On Wed, Jun 09, 2021 at 03:12:11PM -0700, Vineet Gupta wrote:
> >> Currently enabling this triggers a warning
> >>
> >> | usercopy: Kernel memory overwrite attempt detected to kernel text
> >>
On 6/10/21 10:02 AM, Kees Cook wrote:
> On Wed, Jun 09, 2021 at 03:12:11PM -0700, Vineet Gupta wrote:
>> Currently enabling this triggers a warning
>>
>> | usercopy: Kernel memory overwrite attempt detected to kernel text (offset
>> 155633, size 11)!
>> | usercopy: BUG: failure at mm/usercopy.c:99
On Wed, Jun 09, 2021 at 03:12:11PM -0700, Vineet Gupta wrote:
> Currently enabling this triggers a warning
>
> | usercopy: Kernel memory overwrite attempt detected to kernel text (offset
> 155633, size 11)!
> | usercopy: BUG: failure at mm/usercopy.c:99/usercopy_abort()!
> |
> |gcc generated __bu
Currently enabling this triggers a warning
| usercopy: Kernel memory overwrite attempt detected to kernel text (offset
155633, size 11)!
| usercopy: BUG: failure at mm/usercopy.c:99/usercopy_abort()!
|
|gcc generated __builtin_trap
|Path: /bin/busybox
|CPU: 0 PID: 84 Comm: init Not tainted 5.4.22
