Andrii Nakryiko 634d42cadc bpf: Fix map leak in HASH_OF_MAPS map ...

[ Upstream commit 1d4e1eab45 ]

Fix HASH_OF_MAPS bug of not putting inner map pointer on bpf_map_elem_update()
operation. This is due to per-cpu extra_elems optimization, which bypassed
free_htab_elem() logic doing proper clean ups. Make sure that inner map is put
properly in optimized case as well.

Fixes: 8c290e60fa ("bpf: fix hashmap extra_elems logic")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200729040913.2815687-1-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-08-05 10:06:03 +02:00

..

arraymap.c

bpf: decouple btf from seq bpf fs dump and enable more maps

2018-08-13 00:52:45 +02:00

bpf_lru_list.c

bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4

2017-04-17 13:55:52 -04:00

bpf_lru_list.h

bpf: Only set node->ref = 1 if it has not been set

2017-09-01 09:57:39 -07:00

btf.c

bpf: Explicitly memset some bpf info structures declared on the stack

2020-04-02 15:28:23 +02:00

cgroup.c

bpf: introduce update_effective_progs()

2018-08-07 14:29:55 +02:00

core.c

bpf: fix bpf_jit_limit knob for PAGE_SIZE >= 64K

2019-07-10 09:53:47 +02:00

cpumap.c

cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled

2020-05-02 17:25:53 +02:00

devmap.c

bpf: devmap: fix wrong interface selection in notifier_call

2019-12-01 09:17:01 +01:00

disasm.c

bpf: Remove struct bpf_verifier_env argument from print_bpf_insn

2018-03-23 17:38:57 +01:00

disasm.h

bpf: Remove struct bpf_verifier_env argument from print_bpf_insn

2018-03-23 17:38:57 +01:00

hashtab.c

bpf: Fix map leak in HASH_OF_MAPS map

2020-08-05 10:06:03 +02:00

helpers.c

bpf: introduce the bpf_get_local_storage() helper function

2018-08-03 00:47:32 +02:00

inode.c

bpf: map_seq_next should always increase position index

2020-02-24 08:34:51 +01:00

local_storage.c

bpf: allocate local storage buffers using GFP_ATOMIC

2018-12-17 09:24:33 +01:00

lpm_trie.c

bpf: lpm_trie: check left child of last leftmost node for NULL

2019-07-03 13:14:48 +02:00

Makefile

bpf: silence warning messages in core

2019-07-26 09:14:06 +02:00

map_in_map.c

bpf: fix inner map masking to prevent oob under speculation

2019-01-31 08:14:41 +01:00

map_in_map.h

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

offload.c

bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill

2020-02-28 16:38:59 +01:00

percpu_freelist.c

bpf: fix lockdep false positive in percpu_freelist

2019-03-13 14:02:36 -07:00

percpu_freelist.h

bpf: fix lockdep false positive in percpu_freelist

2019-03-13 14:02:36 -07:00

reuseport_array.c

bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY

2018-08-11 01:58:46 +02:00

sockmap.c

bpf: sockmap, fix transition through disconnect without close

2018-09-22 02:46:41 +02:00

stackmap.c

bpf/stackmap: Fix deadlock with rq_lock in bpf_get_stack()

2019-12-31 16:35:20 +01:00

syscall.c

bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()

2020-07-16 08:17:27 +02:00

tnum.c

bpf: Fix incorrect verifier simulation of ARSH under ALU32

2020-01-23 08:21:32 +01:00

verifier.c

bpf: fix buggy r0 retval refinement for tracing helpers

2020-04-23 10:30:24 +02:00

xskmap.c

xsk: do not call synchronize_net() under RCU read lock

2018-10-11 10:19:01 +02:00