Re: [PATCHv6 bpf-next 1/9] x86/shstk: Make return uprobe work with shadow stack

On Tue, 2024-05-21 at 12:48 +0200, Jiri Olsa wrote: > Currently the application with enabled shadow stack will crash > if it sets up return uprobe. The reason is the uretprobe kernel > code changes the user space task's stack, but does not update > shadow stack accordingly. > > Adding new function

Re: [PATCHv6 bpf-next 1/9] x86/shstk: Make return uprobe work with shadow stack

On Tue, May 21, 2024 at 04:22:21PM +0200, Oleg Nesterov wrote: > On 05/21, Jiri Olsa wrote: > > > > Currently the application with enabled shadow stack will crash > > if it sets up return uprobe. The reason is the uretprobe kernel > > code changes the user space task's stack, but does not update >

Re: [PATCHv6 bpf-next 1/9] x86/shstk: Make return uprobe work with shadow stack

On 05/21, Jiri Olsa wrote: > > Currently the application with enabled shadow stack will crash > if it sets up return uprobe. The reason is the uretprobe kernel > code changes the user space task's stack, but does not update > shadow stack accordingly. > > Adding new functions to update values on sh

[PATCHv6 bpf-next 1/9] x86/shstk: Make return uprobe work with shadow stack

Currently the application with enabled shadow stack will crash if it sets up return uprobe. The reason is the uretprobe kernel code changes the user space task's stack, but does not update shadow stack accordingly. Adding new functions to update values on shadow stack and using them in uprobe code