Re: [Devel] [PATCH RH9 6/7] ve/prctl_set_mm: allow setting exe link while unprivileged for spfs

2021-10-05 Thread Cyrill Gorcunov
On 10/5/21 15:55, Pavel Tikhomirov wrote: In criu we do: +-> restore_one_alive_task +-> set_user_ns #1 +-> restore_one_alive_task +-> sigreturn_restore #2 +-> arch_export_restore_task +-> __export_restore_task +-> sys_prctl(PR_SET_MM, PR_SET_MM_MAP,...)

[Devel] [PATCH RH9 6/7] ve/prctl_set_mm: allow setting exe link while unprivileged for spfs

2021-10-05 Thread Pavel Tikhomirov
In criu we do: +-> restore_one_alive_task +-> set_user_ns #1 +-> restore_one_alive_task +-> sigreturn_restore #2 +-> arch_export_restore_task +-> __export_restore_task +-> sys_prctl(PR_SET_MM, PR_SET_MM_MAP,...) So we call PR_SET_MM after we've switched to