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 |
|---|---|---|
| Kconfig | -rw-r--r-- | 15.6 KB |
| Makefile | -rw-r--r-- | 1.6 KB |
| act_api.c | -rw-r--r-- | 22.8 KB |
| act_gact.c | -rw-r--r-- | 5.3 KB |
| act_ipt.c | -rw-r--r-- | 7.2 KB |
| act_mirred.c | -rw-r--r-- | 6.0 KB |
| act_nat.c | -rw-r--r-- | 7.0 KB |
| act_pedit.c | -rw-r--r-- | 5.9 KB |
| act_police.c | -rw-r--r-- | 9.1 KB |
| act_simple.c | -rw-r--r-- | 5.0 KB |
| cls_api.c | -rw-r--r-- | 13.1 KB |
| cls_basic.c | -rw-r--r-- | 6.4 KB |
| cls_fw.c | -rw-r--r-- | 8.3 KB |
| cls_route.c | -rw-r--r-- | 12.3 KB |
| cls_rsvp.c | -rw-r--r-- | 761 bytes |
| cls_rsvp.h | -rw-r--r-- | 14.6 KB |
| cls_rsvp6.c | -rw-r--r-- | 768 bytes |
| cls_tcindex.c | -rw-r--r-- | 12.1 KB |
| cls_u32.c | -rw-r--r-- | 16.2 KB |
| em_cmp.c | -rw-r--r-- | 2.1 KB |
| em_meta.c | -rw-r--r-- | 20.8 KB |
| em_nbyte.c | -rw-r--r-- | 1.9 KB |
| em_text.c | -rw-r--r-- | 3.6 KB |
| em_u32.c | -rw-r--r-- | 1.4 KB |
| ematch.c | -rw-r--r-- | 14.5 KB |
| sch_api.c | -rw-r--r-- | 29.3 KB |
| sch_atm.c | -rw-r--r-- | 19.7 KB |
| sch_blackhole.c | -rw-r--r-- | 1.2 KB |
| sch_cbq.c | -rw-r--r-- | 47.5 KB |
| sch_dsmark.c | -rw-r--r-- | 11.0 KB |
| sch_fifo.c | -rw-r--r-- | 2.5 KB |
| sch_generic.c | -rw-r--r-- | 14.7 KB |
| sch_gred.c | -rw-r--r-- | 13.4 KB |
| sch_hfsc.c | -rw-r--r-- | 40.3 KB |
| sch_htb.c | -rw-r--r-- | 42.3 KB |
| sch_ingress.c | -rw-r--r-- | 8.7 KB |
| sch_netem.c | -rw-r--r-- | 17.4 KB |
| sch_prio.c | -rw-r--r-- | 11.5 KB |
| sch_red.c | -rw-r--r-- | 8.8 KB |
| sch_sfq.c | -rw-r--r-- | 11.9 KB |
| sch_tbf.c | -rw-r--r-- | 11.4 KB |
| sch_teql.c | -rw-r--r-- | 11.4 KB |
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