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473d97343f
linux/kernel/bpf
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Martin KaFai Lau 473d97343f bpf: Change bpf_obj_name_cpy() to better ensure map's name is init by 0 
During get_info_by_fd, the prog/map name is memcpy-ed.  It depends
on the prog->aux->name and map->name to be zero initialized.

bpf_prog_aux is easy to guarantee that aux->name is zero init.

The name in bpf_map may be harder to be guaranteed in the future when
new map type is added.

Hence, this patch makes bpf_obj_name_cpy() to always zero init
the prog/map name.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-07 23:29:39 +01:00
..
arraymap.c bpf: perf event change needed for subsequent bpf helpers 2017-10-07 23:05:57 +01:00
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
cgroup.c bpf: introduce BPF_PROG_QUERY command 2017-10-04 16:05:05 -07:00
core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-05 18:19:22 -07:00
devmap.c bpf: devmap: pass on return value of bpf_map_precharge_memlock 2017-09-18 16:53:30 -07:00
hashtab.c bpf: Only set node->ref = 1 if it has not been set 2017-09-01 09:57:39 -07:00
helpers.c bpf: rename ARG_PTR_TO_STACK 2017-01-09 16:56:27 -05:00
inode.c bpf: Implement show_options 2017-07-06 03:31:46 -04:00
lpm_trie.c bpf: Optimize lpm trie delete 2017-09-25 14:37:54 -07:00
Makefile bpf: sock_map fixes for !CONFIG_BPF_SYSCALL and !STREAM_PARSER 2017-08-16 15:34:13 -07:00
map_in_map.c bpf: Add syscall lookup support for fd array and htab 2017-06-29 13:13:25 -04:00
map_in_map.h bpf: Add syscall lookup support for fd array and htab 2017-06-29 13:13:25 -04:00
percpu_freelist.c bpf: introduce percpu_freelist 2016-03-08 15:28:31 -05:00
percpu_freelist.h bpf: introduce percpu_freelist 2016-03-08 15:28:31 -05:00
sockmap.c bpf: rename bpf_compute_data_end into bpf_compute_data_pointers 2017-09-26 13:36:44 -07:00
stackmap.c bpf: Allow selecting numa node during map creation 2017-08-19 21:35:43 -07:00
syscall.c bpf: Change bpf_obj_name_cpy() to better ensure map's name is init by 0 2017-10-07 23:29:39 +01:00
tnum.c bpf/verifier: track signed and unsigned min/max values 2017-08-08 17:51:34 -07:00
verifier.c bpf: add helper bpf_perf_event_read_value for perf event array map 2017-10-07 23:05:57 +01:00