Revision 0b2dc83906cf1e694e48003eae5df8fa63f76fd9 authored by Jakub Sitnicki on 06 February 2020, 11:16:51 UTC, committed by Daniel Borkmann on 07 February 2020, 21:36:26 UTC
We need to have a synchronize_rcu before free'ing the sockhash because any
outstanding psock references will have a pointer to the map and when they
use it, this could trigger a use after free.
This is a sister fix for sockhash, following commit 2bb90e5cc90e ("bpf:
sockmap, synchronize_rcu before free'ing map") which addressed sockmap,
which comes from a manual audit.
Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200206111652.694507-3-jakub@cloudflare.com
1 parent db6a501
| File | Mode | Size |
|---|---|---|
| governors | ||
| Kconfig | -rw-r--r-- | 2.1 KB |
| Kconfig.arm | -rw-r--r-- | 2.8 KB |
| Kconfig.mips | -rw-r--r-- | 658 bytes |
| Kconfig.powerpc | -rw-r--r-- | 520 bytes |
| Makefile | -rw-r--r-- | 1.4 KB |
| coupled.c | -rw-r--r-- | 25.2 KB |
| cpuidle-arm.c | -rw-r--r-- | 3.9 KB |
| cpuidle-at91.c | -rw-r--r-- | 1.6 KB |
| cpuidle-big_little.c | -rw-r--r-- | 6.6 KB |
| cpuidle-calxeda.c | -rw-r--r-- | 1.6 KB |
| cpuidle-clps711x.c | -rw-r--r-- | 1.2 KB |
| cpuidle-cps.c | -rw-r--r-- | 4.2 KB |
| cpuidle-exynos.c | -rw-r--r-- | 3.3 KB |
| cpuidle-haltpoll.c | -rw-r--r-- | 3.0 KB |
| cpuidle-kirkwood.c | -rw-r--r-- | 2.2 KB |
| cpuidle-mvebu-v7.c | -rw-r--r-- | 3.3 KB |
| cpuidle-powernv.c | -rw-r--r-- | 10.5 KB |
| cpuidle-psci.c | -rw-r--r-- | 5.1 KB |
| cpuidle-pseries.c | -rw-r--r-- | 6.7 KB |
| cpuidle-ux500.c | -rw-r--r-- | 3.0 KB |
| cpuidle-zynq.c | -rw-r--r-- | 1.5 KB |
| cpuidle.c | -rw-r--r-- | 18.5 KB |
| cpuidle.h | -rw-r--r-- | 2.2 KB |
| driver.c | -rw-r--r-- | 9.5 KB |
| dt_idle_states.c | -rw-r--r-- | 6.3 KB |
| dt_idle_states.h | -rw-r--r-- | 216 bytes |
| governor.c | -rw-r--r-- | 2.8 KB |
| poll_state.c | -rw-r--r-- | 1.3 KB |
| sysfs.c | -rw-r--r-- | 19.5 KB |
Computing file changes ...
