mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-09-16 18:15:52 +00:00
dcb7cd97f1
Fix kernel panic on various SMP machines. The culprit is a null ub->skb in ulog_send(). If ulog_timer() has already been scheduled on one CPU and is spinning on the lock, and ipt_ulog_packet() flushes the queue on another CPU by calling ulog_send() right before it exits, there will be no skbuff when ulog_timer() acquires the lock and calls ulog_send(). Cancelling the timer in ulog_send() doesn't help because it has already been scheduled and is running on the first CPU. Similar problem exists in ebt_ulog.c and nfnetlink_log.c. Signed-off-by: Mark Huang <mlhuang@cs.princeton.edu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
History
|
|
|---|---|---|
| .. | ||
| ebt_802_3.c | ||
| ebt_among.c | ||
| ebt_arp.c | ||
| ebt_arpreply.c | ||
| ebt_dnat.c | ||
| ebt_ip.c | ||
| ebt_limit.c | ||
| ebt_log.c | ||
| ebt_mark.c | ||
| ebt_mark_m.c | ||
| ebt_pkttype.c | ||
| ebt_redirect.c | ||
| ebt_snat.c | ||
| ebt_stp.c | ||
| ebt_ulog.c | ||
| ebt_vlan.c | ||
| ebtable_broute.c | ||
| ebtable_filter.c | ||
| ebtable_nat.c | ||
| ebtables.c | ||
| Kconfig | ||
| Makefile | ||