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linux/kernel/bpf
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Andrii Nakryiko f42bcd168d bpf: teach verifier actual bounds of bpf_get_smp_processor_id() result 
bpf_get_smp_processor_id() helper returns current CPU on which BPF
program runs. It can't return value that is bigger than maximum allowed
number of CPUs (minus one, due to zero indexing). Teach BPF verifier to
recognize that. This makes it possible to use bpf_get_smp_processor_id()
result to index into arrays without extra checks, as demonstrated in
subsequent selftests/bpf patch.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230711232400.1658562-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-12 07:57:18 -07:00
..
preload bpf: make preloaded map iterators to display map elements count 2023-07-06 12:42:25 -07:00
arraymap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
bloom_filter.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
bpf_cgrp_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
bpf_inode_storage.c Networking changes for 6.4. 2023-04-26 16:07:23 -07:00
bpf_iter.c bpf: implement numbers iterator 2023-03-08 16:19:51 -08:00
bpf_local_storage.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
bpf_lru_list.c bpf: Address KCSAN report on bpf_lru_list 2023-05-12 12:01:03 -07:00
bpf_lru_list.h bpf: Address KCSAN report on bpf_lru_list 2023-05-12 12:01:03 -07:00
bpf_lsm.c
bpf_struct_ops.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
bpf_struct_ops_types.h
bpf_task_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
btf.c bpf: Resolve modifiers when walking structs 2023-06-30 10:35:59 +02:00
cgroup.c bpf-next-for-netdev 2023-05-16 19:50:05 -07:00
cgroup_iter.c cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers 2023-03-17 12:07:13 -10:00
core.c bpf: Hide unused bpf_patch_call_args 2023-06-12 19:00:08 +02:00
cpumap.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
cpumask.c bpf: Replace bpf_cpumask_any* with bpf_cpumask_any_distribute* 2023-06-12 15:09:11 -07:00
devmap.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
disasm.c
disasm.h
dispatcher.c
hashtab.c bpf: populate the per-cpu insertions/deletions counters for hashmaps 2023-07-06 12:42:25 -07:00
helpers.c bpf: Make bpf_refcount_acquire fallible for non-owning refs 2023-06-05 13:17:20 -07:00
inode.c bpf: Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands 2023-05-23 23:31:42 +02:00
Kconfig
link_iter.c
local_storage.c cgroup changes for v6.4-rc1 2023-04-29 10:05:22 -07:00
log.c bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log 2023-05-16 22:34:50 -07:00
lpm_trie.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
Makefile bpf: Split off basic BPF verifier log into separate file 2023-04-11 18:05:42 +02:00
map_in_map.c bpf: Fix elem_size not being set for inner maps 2023-06-02 16:22:12 -07:00
map_in_map.h
map_iter.c bpf: add a new kfunc to return current bpf_map elements count 2023-07-06 12:42:25 -07:00
memalloc.c bpf: Factor out a common helper free_all() 2023-06-06 13:40:07 -07:00
mmap_unlock_work.h
net_namespace.c
offload.c bpf: netdev: init the offload table earlier 2023-05-15 07:07:41 -07:00
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
reuseport_array.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
ringbuf.c bpf: Remove unnecessary ring buffer size check 2023-07-05 14:09:45 +02:00
stackmap.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
syscall.c bpf: Support ->fill_link_info for perf_event 2023-07-11 20:07:51 -07:00
sysfs_btf.c
task_iter.c
tnum.c
trampoline.c bpf: Fix memleak due to fentry attach failure 2023-05-15 23:41:59 +02:00
verifier.c bpf: teach verifier actual bounds of bpf_get_smp_processor_id() result 2023-07-12 07:57:18 -07:00