Revision a98fdcef941e107eeabae622d85a1f476f25a160 authored by Oleg Nesterov on 14 January 2008, 21:02:37 UTC, committed by Linus Torvalds on 14 January 2008, 21:23:00 UTC
Commit 84427eaef1fb91704c7112bdb598c810003b99f3 (remove task_ppid_nr_ns) moved the task_tgid_nr_ns(task->real_parent) outside of lock_task_sighand(). This is wrong, ->real_parent could be freed/reused. Both ->parent/real_parent point to nothing after __exit_signal() because we remove the child from ->children list, and thus the child can't be reparented when its parent exits. rcu_read_lock() protects ->parent/real_parent, but _only_ if we know it was valid before we take rcu lock. Revert this part of the patch. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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File | Mode | Size |
---|---|---|
802 | ||
8021q | ||
9p | ||
appletalk | ||
atm | ||
ax25 | ||
bluetooth | ||
bridge | ||
core | ||
dccp | ||
decnet | ||
econet | ||
ethernet | ||
ieee80211 | ||
ipv4 | ||
ipv6 | ||
ipx | ||
irda | ||
iucv | ||
key | ||
lapb | ||
llc | ||
mac80211 | ||
netfilter | ||
netlabel | ||
netlink | ||
netrom | ||
packet | ||
rfkill | ||
rose | ||
rxrpc | ||
sched | ||
sctp | ||
sunrpc | ||
tipc | ||
unix | ||
wanrouter | ||
wireless | ||
x25 | ||
xfrm | ||
Kconfig | -rw-r--r-- | 8.2 KB |
Makefile | -rw-r--r-- | 1.6 KB |
TUNABLE | -rw-r--r-- | 2.2 KB |
compat.c | -rw-r--r-- | 19.5 KB |
nonet.c | -rw-r--r-- | 528 bytes |
socket.c | -rw-r--r-- | 54.8 KB |
sysctl_net.c | -rw-r--r-- | 947 bytes |
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