Andrii Nakryiko 333291ce50 bpf: Fix bug in mmap() implementation for BPF array map ... mmap() subsystem allows user-space application to memory-map region with initial page offset. This wasn't taken into account in initial implementation of BPF array memory-mapping. This would result in wrong pages, not taking into account requested page shift, being memory-mmaped into user-space. This patch fixes this gap and adds a test for such scenario. Fixes: fc9702273e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20200512235925.3817805-1-andriin@fb.com		2020-05-14 12:40:04 -07:00
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arraymap.c	bpf: Fix bug in mmap() implementation for BPF array map	2020-05-14 12:40:04 -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	bpf: Fix a typo "inacitve" -> "inactive"	2020-04-06 21:54:10 +02:00
bpf_lsm.c	bpf: lsm: Implement attach, detach and execution	2020-03-30 01:34:00 +02:00
bpf_struct_ops_types.h	bpf: tcp: Support tcp_congestion_ops in bpf	2020-01-09 08:46:18 -08:00
bpf_struct_ops.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-03-25 18:58:11 -07:00
btf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-03-30 19:52:37 -07:00
cgroup.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-03-30 19:52:37 -07:00
core.c	bpf: Enable bpf cgroup hooks to retrieve cgroup v2 and ancestor id	2020-03-27 19:40:39 -07:00
cpumap.c	cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled	2020-04-20 18:38:04 -07:00
devmap.c	bpf, xdp: Remove no longer required rcu_read_{un}lock()	2020-01-27 11:16:25 +01:00
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
dispatcher.c	bpf: Remove bpf_image tree	2020-03-13 12:49:52 -07:00
hashtab.c	bpf: Replace zero-length array with flexible-array member	2020-02-28 01:21:02 +01:00
helpers.c	bpf: Enable bpf cgroup hooks to retrieve cgroup v2 and ancestor id	2020-03-27 19:40:39 -07:00
inode.c	bpf: Introduce pinnable bpf_link abstraction	2020-03-02 22:06:27 -08:00
local_storage.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-12-22 09:54:33 -08:00
lpm_trie.c	bpf: Replace zero-length array with flexible-array member	2020-02-28 01:21:02 +01:00
Makefile	bpf: Introduce BPF_PROG_TYPE_LSM	2020-03-30 01:34:00 +02:00
map_in_map.c	bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS	2020-01-09 08:46:18 -08:00
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	2020-02-17 16:53:49 +01:00
percpu_freelist.c	bpf: Dont iterate over possible CPUs with interrupts disabled	2020-02-24 16:18:20 -08:00
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	net: Generate reuseport group ID on group creation	2020-02-21 22:29:45 +01:00
stackmap.c	bpf/stackmap: Dont trylock mmap_sem with PREEMPT_RT and interrupts disabled	2020-02-24 16:20:10 -08:00
syscall.c	bpf: Fix error return code in map_lookup_and_delete_elem()	2020-04-30 16:19:08 +02:00
sysfs_btf.c	bpf: Support llvm-objcopy for vmlinux BTF	2020-03-19 12:32:38 +01:00
tnum.c	bpf: Verifier, do explicit ALU32 bounds tracking	2020-03-30 14:59:53 -07:00
trampoline.c	bpf: lsm: Implement attach, detach and execution	2020-03-30 01:34:00 +02:00
verifier.c	bpf: Propagate expected_attach_type when verifying freplace programs	2020-04-24 17:34:30 -07:00
xskmap.c	xsk: Make xskmap flush_list common for all map instances	2019-12-19 21:09:43 -08:00