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This is the 5.4.177 stable release

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Merge 5.4.177 into android11-5.4-lts

Changes in 5.4.177
	PCI: pciehp: Fix infinite loop in IRQ handler upon power fault
	psi: Fix uaf issue when psi trigger is destroyed while being polled
	cgroup-v1: Require capabilities to set release_agent
	ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback
	net: amd-xgbe: ensure to reset the tx_timer_active flag
	net: amd-xgbe: Fix skb data length underflow
	net: sched: fix use-after-free in tc_new_tfilter()
	rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
	cpuset: Fix the bug that subpart_cpus updated wrongly in update_cpumask()
	af_packet: fix data-race in packet_setsockopt / packet_setsockopt
	Linux 5.4.177

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I41791ffa382aae8c424ca4950ca2b367302ef59a
This commit is contained in:
Greg Kroah-Hartman 2022-02-09 12:23:04 +01:00
commit 92070960c5
14 changed files with 93 additions and 63 deletions
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8
net/packet/af_packet.c
View file

@ -1728,7 +1728,10 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
err = -ENOSPC;
if (refcount_read(&match->sk_ref) < PACKET_FANOUT_MAX) {
__dev_remove_pack(&po->prot_hook);
po->fanout = match;
/* Paired with packet_setsockopt(PACKET_FANOUT_DATA) */
WRITE_ONCE(po->fanout, match);
po->rollover = rollover;
rollover = NULL;
refcount_set(&match->sk_ref, refcount_read(&match->sk_ref) + 1);
@ -3874,7 +3877,8 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
}
case PACKET_FANOUT_DATA:
{
if (!po->fanout)
/* Paired with the WRITE_ONCE() in fanout_add() */
if (!READ_ONCE(po->fanout))
return -EINVAL;
return fanout_set_data(po, optval, optlen);