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| author |   Eric Paris <eparis@redhat.com> | 2014-03-07 11:41:32 -0500 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2014-03-07 11:41:32 -0500 |
| commit | b7d3622a39fde7658170b7f3cf6c6889bb8db30d (patch) | |
| tree | 64f4e781ecb2a85d675e234072b988560bcd25f1 /arch/arm/kernel/process.c | |
| parent | audit: whitespace fix in kernel-parameters.txt (diff) | |
| parent | Linux 3.13 (diff) | |
| download | linux-dev-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.tar.xz linux-dev-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.zip | |
Merge tag 'v3.13' into for-3.15
Linux 3.13
Conflicts:
include/net/xfrm.h
Simple merge where v3.13 removed 'extern' from definitions and the audit
tree did s/u32/unsigned int/ to the same definitions.
Diffstat (limited to 'arch/arm/kernel/process.c')
| -rw-r--r-- | arch/arm/kernel/process.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 94f6b05f9e24..92f7b15dd221 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -404,6 +404,7 @@ EXPORT_SYMBOL(dump_fpu); unsigned long get_wchan(struct task_struct *p) { struct stackframe frame; + unsigned long stack_page; int count = 0; if (!p || p == current || p->state == TASK_RUNNING) return 0; @@ -412,9 +413,11 @@ unsigned long get_wchan(struct task_struct *p) frame.sp = thread_saved_sp(p); frame.lr = 0; /* recovered from the stack */ frame.pc = thread_saved_pc(p); + stack_page = (unsigned long)task_stack_page(p); do { - int ret = unwind_frame(&frame); - if (ret < 0) + if (frame.sp < stack_page || + frame.sp >= stack_page + THREAD_SIZE || + unwind_frame(&frame) < 0) return 0; if (!in_sched_functions(frame.pc)) return frame.pc; |