Commits
Peter Zijlstra committed cac9b9a4b08
stacktrace: Force USER_DS for stack_trace_save_user() When walking userspace stacks, USER_DS needs to be set, otherwise access_ok() will not function as expected. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Reported-by: Eiichi Tsukata <devel@etsukata.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Vegard Nossum <vegard.nossum@oracle.com> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Link: https://lkml.kernel.org/r/20190718085754.GM3402@hirez.programming.kicks-ass.net