Daniel Borkmann e4298d2583 bpf: restrict stack pointer arithmetic for unprivileged ... Restrict stack pointer arithmetic for unprivileged users in that arithmetic itself must not go out of bounds as opposed to the actual access later on. Therefore after each adjust_ptr_min_max_vals() with a stack pointer as a destination we simulate a check_stack_access() of 1 byte on the destination and once that fails the program is rejected for unprivileged program loads. This is analog to map value pointer arithmetic and needed for masking later on. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2019-01-02 16:01:24 -08:00
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arraymap.c	bpf: pass struct btf pointer to the map_check_btf() callback	2018-12-12 15:33:33 -08:00
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: log struct/union attribute for forward type	2018-12-19 00:47:56 +01:00
cgroup.c	bpf: add cg_skb_is_valid_access for BPF_PROG_TYPE_CGROUP_SKB	2018-10-19 13:49:34 -07:00
core.c	bpf: enable access to ax register also from verifier rewrite	2019-01-02 16:01:24 -08:00
cpumap.c	bpf/cpumap: make sure frame_size for build_skb is aligned if headroom isn't	2018-12-20 23:19:12 +01:00
devmap.c	bpf: devmap: fix wrong interface selection in notifier_call	2018-10-26 00:32:21 +02:00
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: allow zero-initializing hash map seed	2018-11-20 00:53:39 +01:00
helpers.c	bpf: fix direct packet write into pop/peek helpers	2018-10-25 17:02:06 -07:00
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: enable cgroup local storage map pretty print with kind_flag	2018-12-18 01:11:59 +01:00
lpm_trie.c	bpf: pass struct btf pointer to the map_check_btf() callback	2018-12-12 15:33:33 -08:00
Makefile	bpf: add queue and stack maps	2018-10-19 13:24:31 -07:00
map_in_map.c	bpf: don't allow create maps of per-cpu cgroup local storages	2018-10-01 16:18:33 +02:00
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: fix null pointer dereference on pointer offload	2018-11-16 20:48:27 -08:00
percpu_freelist.c	bpf: fix lockdep splat	2017-11-15 19:46:32 +09:00
percpu_freelist.h	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
queue_stack_maps.c	bpf: fix integer overflow in queue_stack_map	2018-11-22 21:29:40 +01:00
reuseport_array.c	bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY	2018-08-11 01:58:46 +02:00
stackmap.c	bpf: rename stack trace map operations	2018-10-19 13:24:30 -07:00
syscall.c	bpf: support raw tracepoints in modules	2018-12-18 14:08:12 -08:00
tnum.c	bpf/verifier: improve register value range tracking with ARSH	2018-04-29 08:45:53 -07:00
verifier.c	bpf: restrict stack pointer arithmetic for unprivileged	2019-01-02 16:01:24 -08:00
xskmap.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-10-19 11:03:06 -07:00