Stanislav Fomichev 5c6fdd877e bpf: zero out build_id for BPF_STACK_BUILD_ID_IP ...

[ Upstream commit 4af396ae48 ]

When returning BPF_STACK_BUILD_ID_IP from stack_map_get_build_id_offset,
make sure that build_id field is empty. Since we are using percpu
free list, there is a possibility that we might reuse some previous
bpf_stack_build_id with non-zero build_id.

Fixes: 615755a77b ("bpf: extend stackmap to save binary_build_id+offset instead of address")
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2019-02-27 10:08:56 +01:00

..

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_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: btf: Fix end boundary calculation for type section

2018-09-12 22:00:23 +02:00

cgroup.c

bpf: introduce update_effective_progs()

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

core.c

bpf: enable access to ax register also from verifier rewrite

2019-01-31 08:14:40 +01:00

cpumap.c

bpf: fix redirect to map under tail calls

2018-08-17 15:56:23 -07:00

devmap.c

bpf: fix redirect to map under tail calls

2018-08-17 15:56:23 -07:00

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: use per htab salt for bucket hash

2018-08-23 18:45:47 +02:00

helpers.c

bpf: introduce the bpf_get_local_storage() helper function

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

inode.c

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

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

local_storage.c

bpf: allocate local storage buffers using GFP_ATOMIC

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

lpm_trie.c

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

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

Makefile

bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY

2018-08-11 01:58:46 +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: allow program and map sharing per-ASIC

2018-07-18 15:10:34 +02:00

percpu_freelist.c

bpf: fix lockdep splat

2017-11-15 19:46:32 +09:00

percpu_freelist.h

…

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: zero out build_id for BPF_STACK_BUILD_ID_IP

2019-02-27 10:08:56 +01:00

syscall.c

bpf: fix bpf_prog_get_info_by_fd to return 0 func_lens for unpriv

2018-11-27 16:13:03 +01:00

tnum.c

bpf/verifier: improve register value range tracking with ARSH

2018-04-29 08:45:53 -07:00

verifier.c

bpf: fix sanitation of alu op with pointer / scalar type from different paths

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

xskmap.c

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

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