Re: [PATCH v4 1/2] MIPS: Don't crash in stack_top() for tasks without ABI or vDSO

On Wed, Jun 11, 2025 at 01:28:26PM +0200, Thomas Weißschuh wrote: > Not all tasks have an ABI associated or vDSO mapped, > for example kthreads never do. > If such a task ever ends up calling stack_top(), it will derefence the > NULL ABI pointer and crash. > > This can for example happen when usin

Re: [PATCH v4 1/2] MIPS: Don't crash in stack_top() for tasks without ABI or vDSO

Reviewed-by: Huacai Chen On Wed, Jun 11, 2025 at 7:28 PM Thomas Weißschuh wrote: > > Not all tasks have an ABI associated or vDSO mapped, > for example kthreads never do. > If such a task ever ends up calling stack_top(), it will derefence the > NULL ABI pointer and crash. > > This can for examp

[PATCH v4 1/2] MIPS: Don't crash in stack_top() for tasks without ABI or vDSO

Not all tasks have an ABI associated or vDSO mapped, for example kthreads never do. If such a task ever ends up calling stack_top(), it will derefence the NULL ABI pointer and crash. This can for example happen when using kunit: mips_stack_top+0x28/0xc0 arch_pick_mmap_layout+0x190/0x220