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Anton Protopopov 215a256bc8 bpf: Fix map permissions check 
[ Upstream commit 1ea0f9120c8ce105ca181b070561df5cbd6bc049 ]

The map_lookup_and_delete_elem() function should check for both FMODE_CAN_WRITE
and FMODE_CAN_READ permissions because it returns a map element to user space.

Fixes: bd513cd08f10 ("bpf: add MAP_LOOKUP_AND_DELETE_ELEM syscall")
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200527185700.14658-5-a.s.protopopov@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-22 09:31:11 +02:00
..
arraymap.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-17 20:20:36 -07:00
bpf_lru_list.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
bpf_lru_list.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
btf.c
bpf: Explicitly memset some bpf info structures declared on the stack
2020-04-02 15:11:01 +02:00
cgroup.c
bpf: Initialize storage pointers to NULL to prevent freeing garbage pointer
2020-04-01 11:02:11 +02:00
core.c
bpf: Fix use after free in subprog's jited symbol removal
2019-10-22 11:26:09 -07:00
cpumap.c
cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled
2020-05-02 08:48:51 +02:00
devmap.c
bpf, devmap: Pass lockdep expression to RCU lists
2020-02-11 04:35:29 -08:00
disasm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
disasm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
hashtab.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-17 20:20:36 -07:00
helpers.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
inode.c
bpf: map_seq_next should always increase position index
2020-02-24 08:36:58 +01:00
local_storage.c
bpf: move memory size checks to bpf_map_charge_init()
2019-05-31 16:52:56 -07:00
lpm_trie.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
Makefile
btf: expose BTF info through sysfs
2019-08-13 16:14:15 +02:00
map_in_map.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
map_in_map.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
offload.c
bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill
2020-02-28 17:22:27 +01:00
percpu_freelist.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
percpu_freelist.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
queue_stack_maps.c
bpf: move memory size checks to bpf_map_charge_init()
2019-05-31 16:52:56 -07:00
reuseport_array.c
bpf: move memory size checks to bpf_map_charge_init()
2019-05-31 16:52:56 -07:00
stackmap.c
bpf/stackmap: Fix deadlock with rq_lock in bpf_get_stack()
2019-12-31 16:44:09 +01:00
syscall.c
bpf: Fix map permissions check
2020-06-22 09:31:11 +02:00
sysfs_btf.c
bpf: Support llvm-objcopy for vmlinux BTF
2020-06-17 16:40:20 +02:00
tnum.c
bpf: Fix incorrect verifier simulation of ARSH under ALU32
2020-01-23 08:22:44 +01:00
verifier.c
bpf: Forbid XADD on spilled pointers for unprivileged users
2020-05-02 08:48:46 +02:00
xskmap.c
bpf/xskmap: Return ERR_PTR for failure case instead of NULL.
2019-09-25 22:14:16 +02:00