tree 3efb40ae7133e4bb2dfc6c27cb72a82e9a2465b4
parent 7281c8dec8a87685cb54d503d8cceef5a0fc2fdd
author Peter Zijlstra <peterz@infradead.org> 1524229425 +0200
committer Ingo Molnar <mingo@kernel.org> 1525502082 +0200

sched/autogroup: Fix possible Spectre-v1 indexing for sched_prio_to_weight[]

> kernel/sched/autogroup.c:230 proc_sched_autogroup_set_nice() warn: potential spectre issue 'sched_prio_to_weight'

Userspace controls @nice, sanitize the array index.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>