android_kernel_motorola_sm6375/kernel/bpf
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Tao Chen d2e35f220c bpf: Check percpu map value size first
[ Upstream commit 1d244784be6b01162b732a5a7d637dfc024c3203 ]

Percpu map is often used, but the map value size limit often ignored,
like issue: https://github.com/iovisor/bcc/issues/2519. Actually,
percpu map value size is bound by PCPU_MIN_UNIT_SIZE, so we
can check the value size whether it exceeds PCPU_MIN_UNIT_SIZE first,
like percpu map of local_storage. Maybe the error message seems clearer
compared with "cannot allocate memory".

Signed-off-by: Jinke Han <jinkehan@didiglobal.com>
Signed-off-by: Tao Chen <chen.dylane@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240910144111.1464912-2-chen.dylane@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-08 16:20:44 +01:00
..
arraymap.c bpf: Check percpu map value size first 2024-11-08 16:20:44 +01:00
bpf_lru_list.c bpf: Address KCSAN report on bpf_lru_list 2023-07-27 08:37:42 +02:00
bpf_lru_list.h bpf: Address KCSAN report on bpf_lru_list 2023-07-27 08:37:42 +02:00
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 bpf: report RCU QS in cpumap kthread 2024-03-26 18:22:25 -04:00
devmap.c bpf: Fix DEVMAP_HASH overflow check on 32-bit arches 2024-11-08 16:20:26 +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 bpf: Check percpu map value size first 2024-11-08 16:20:44 +01:00
helpers.c bpf: Fix bpf_strtol and bpf_strtoul helpers for 32bit 2024-11-08 16:20:31 +01:00
inode.c
local_storage.c
lpm_trie.c bpf, lpm: Fix check prefixlen before walking trie 2024-01-25 14:34:24 -08:00
Makefile
map_in_map.c bpf: Add map and need_defer parameters to .map_fd_put_ptr() 2024-02-23 08:24:57 +01:00
map_in_map.h bpf: Add map and need_defer parameters to .map_fd_put_ptr() 2024-02-23 08:24:57 +01:00
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c bpf: Avoid deadlock when using queue and stack maps from NMI 2023-10-10 21:46:36 +02:00
reuseport_array.c
stackmap.c bpf: Fix stackmap overflow check on 32-bit arches 2024-03-26 18:22:17 -04:00
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 precision tracking for BPF_ALU | BPF_TO_BE | BPF_END 2023-11-28 16:50:18 +00:00
xskmap.c