Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Stanislav Fomichev 64d2c1cfd0 bpf: Don't EFAULT for getsockopt with optval=NULL ... [ Upstream commit 00e74ae0863827d944e36e56a4ce1e77e50edb91 ] Some socket options do getsockopt with optval=NULL to estimate the size of the final buffer (which is returned via optlen). This breaks BPF getsockopt assumptions about permitted optval buffer size. Let's enforce these assumptions only when non-NULL optval is provided. Fixes: 0d01da6afc ("bpf: implement getsockopt and setsockopt hooks") Reported-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/ZD7Js4fj5YyI2oLd@google.com/T/#mb68daf700f87a9244a15d01d00c3f0e5b08f49f7 Link: https://lore.kernel.org/bpf/20230418225343.553806-2-sdf@google.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-05-17 11:35:44 +02:00
..
arraymap.c
bpf_lru_list.c	bpf_lru_list: Read double-checked variable once without lock	2021-03-04 10:26:16 +01:00
bpf_lru_list.h
btf.c	btf: fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR	2023-03-17 08:32:51 +01:00
cgroup.c	bpf: Don't EFAULT for getsockopt with optval=NULL	2023-05-17 11:35:44 +02:00
core.c	bpf: Adjust insufficient default bpf_jit_limit	2023-04-05 11:16:37 +02:00
cpumap.c
devmap.c	bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc	2021-12-17 10:12:24 +01:00
disasm.c	bpf: Introduce BPF nospec instruction for mitigating Spectre v4	2021-09-15 09:47:38 +02:00
disasm.h
hashtab.c
helpers.c
inode.c
local_storage.c
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c
reuseport_array.c
stackmap.c	bpf: Fix incorrect memory charge cost calculation in stack_map_alloc()	2022-06-22 14:11:02 +02:00
syscall.c	bpf: Ensure correct locking around vulnerable function find_vpid()	2022-10-26 13:22:24 +02:00
sysfs_btf.c
tnum.c
verifier.c	bpf: Fix incorrect verifier pruning due to missing register precision taints	2023-04-26 11:24:02 +02:00
xskmap.c