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authorLinus Torvalds2019-07-11 13:50:44 -0700
committerLinus Torvalds2019-07-11 13:50:44 -0700
commit02150fab6ae9924ef03e21a15f2d5f7415a9cdf7 (patch)
tree5084cab9f309a8d768bae6d5b74501d6dd8b00f4
parent3a83f575a33b960b7b1d582dc17f154d887c9b8d (diff)
parent7e8e6816c6495a1168f9a7a50125d82c23e59300 (diff)
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull stacktrace fix from Thomas Gleixner: "Fix yet another instance of kernel thread check which ignores that kernel threads can call use_mm()" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stacktrace: Use PF_KTHREAD to check for kernel threads
-rw-r--r--kernel/stacktrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 36139de0a3c4..c8d0f05721a1 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -228,7 +228,7 @@ unsigned int stack_trace_save_user(unsigned long *store, unsigned int size)
};
/* Trace user stack if not a kernel thread */
- if (!current->mm)
+ if (current->flags & PF_KTHREAD)
return 0;
arch_stack_walk_user(consume_entry, &c, task_pt_regs(current));