[PATCH 4.9.257 0/1] Bugfix for 781691c797de ("futex: Avoid violating the 10th rule of futex")

This patch may fix the following bug:

Link: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/kernel...

> static int __fixup_pi_state_owner(u32 __user *uaddr, struct futex_q *q, > struct task_struct *argowner) > { > struct futex_pi_state *pi_state = q->pi_state; > struct task_struct *oldowner, *newowner; > u32 uval, curval, newval, newtid; > int err = 0; > > oldowner = pi_state->owner; > > /* Owner died? */ > if (!pi_state->owner) > newtid |= FUTEX_OWNER_DIED; Variable "newtid" is used without initialized.

Peter Zijlstra (1): futex: Fix OWNER_DEAD fixup

kernel/futex.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)