Cupertino Miranda 0922c78f59 bpf/verifier: refactor checks for range computation ...

Split range computation checks in its own function, isolating pessimitic
range set for dst_reg and failing return to a single point.

Signed-off-by: Cupertino Miranda <cupertino.miranda@oracle.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Cc: Yonghong Song <yonghong.song@linux.dev>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: David Faust <david.faust@oracle.com>
Cc: Jose Marchesi <jose.marchesi@oracle.com>
Cc: Elena Zannoni <elena.zannoni@oracle.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>

bpf/verifier: improve code after range computation recent changes.
Link: https://lore.kernel.org/r/20240506141849.185293-3-cupertino.miranda@oracle.com

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

2024-05-06 17:09:11 -07:00

..

preload

bpf: make preloaded map iterators to display map elements count

2023-07-06 12:42:25 -07:00

arena.c

bpf,arena: Use helper sizeof_field in struct accessors

2024-03-28 18:31:36 -07:00

arraymap.c

bpf: Do not walk twice the map on free

2024-04-30 16:28:33 +02:00

bloom_filter.c

bpf: Check bloom filter map value size

2024-03-27 09:56:17 -07:00

bpf_cgrp_storage.c

bpf: Enable bpf_cgrp_storage for cgroup1 non-attach case

2023-12-08 17:08:18 -08:00

bpf_inode_storage.c

Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2023-04-26 16:07:23 -07:00

bpf_iter.c

bpf: move sleepable flag from bpf_prog_aux to bpf_prog

2024-03-11 16:41:25 -07:00

bpf_local_storage.c

bpf: Fix typos in comments

2024-04-22 17:48:08 +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: lru: Remove unused declaration bpf_lru_promote()

2023-08-08 17:21:42 -07:00

bpf_lsm.c

bpf: Minor clean-up to sleepable_lsm_hooks BTF set

2024-02-01 18:37:45 +01:00

bpf_struct_ops.c

bpf: Check return from set_memory_rox()

2024-03-18 14:18:47 -07:00

bpf_task_storage.c

…

btf.c

bpf: Add support for kprobe session context

2024-04-30 09:45:53 -07:00

cgroup_iter.c

bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg

2023-11-07 15:24:25 -08:00

cgroup.c

bpf: Allow helper bpf_get_[ns_]current_pid_tgid() for all prog types

2024-03-19 14:24:07 -07:00

core.c

bpf: Switch to krealloc_array()

2024-04-29 16:13:14 -07:00

cpumap.c

bpf: report RCU QS in cpumap kthread

2024-03-20 21:05:43 -07:00

cpumask.c

bpf: Allow invoking kfuncs from BPF_PROG_TYPE_SYSCALL progs

2024-04-05 10:56:09 -07:00

crypto.c

bpf: make common crypto API for TC/XDP programs

2024-04-24 16:01:10 -07:00

devmap.c

bpf: Fix DEVMAP_HASH overflow check on 32-bit arches

2024-03-07 20:02:38 -08:00

disasm.c

bpf: add special internal-only MOV instruction to resolve per-CPU addrs

2024-04-03 10:29:55 -07:00

disasm.h

…

dispatcher.c

bpf: Use arch_bpf_trampoline_size

2023-12-06 17:17:20 -08:00

hashtab.c

bpf: Do not walk twice the hash map on free

2024-04-30 16:28:46 +02:00

helpers.c

bpf: make common crypto API for TC/XDP programs

2024-04-24 16:01:10 -07:00

inode.c

bpf: Support symbolic BPF FS delegation mount options

2024-01-24 16:21:02 -08:00

Kconfig

bpf: Merge two CONFIG_BPF entries

2024-02-07 16:38:20 -08:00

link_iter.c

…

local_storage.c

Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2023-04-29 10:05:22 -07:00

log.c

bpf: Replace deprecated strncpy with strscpy

2024-04-03 16:57:41 +02:00

lpm_trie.c

bpf: Avoid kfree_rcu() under lock in bpf_lpm_trie.

2024-03-29 11:10:41 -07:00

Makefile

bpf: crypto: fix build when CONFIG_CRYPTO=m

2024-05-01 13:32:26 -07:00

map_in_map.c

bpf: Optimize the free of inner map

2023-12-04 17:50:26 -08:00

map_in_map.h

bpf: Add map and need_defer parameters to .map_fd_put_ptr()

2023-12-04 17:50:26 -08:00

map_iter.c

bpf: treewide: Annotate BPF kfuncs in BTF

2024-01-31 20:40:56 -08:00

memalloc.c

bpf: Remove unnecessary cpu == 0 check in memalloc

2024-01-04 10:18:14 -08:00

mmap_unlock_work.h

…

mprog.c

bpf: Handle bpf_mprog_query with NULL entry

2023-10-06 17:11:20 -07:00

net_namespace.c

…

offload.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-09-21 21:49:45 +02:00

percpu_freelist.c

…

percpu_freelist.h

…

prog_iter.c

…

queue_stack_maps.c

bpf: Avoid deadlock when using queue and stack maps from NMI

2023-09-11 19:04:49 -07:00

reuseport_array.c

bpf: Centralize permissions checks for all BPF map types

2023-06-19 14:04:04 +02:00

ringbuf.c

bpf: Fold smp_mb__before_atomic() into atomic_set_release()

2023-10-24 14:26:07 +02:00

stackmap.c

bpf: Fix stackmap overflow check on 32-bit arches

2024-03-07 20:06:25 -08:00

syscall.c

bpf: Add support for kprobe session attach

2024-04-30 09:45:53 -07:00

sysfs_btf.c

btf: Avoid weak external references

2024-04-16 16:35:13 +02:00

task_iter.c

bpf: Fix an issue due to uninitialized bpf_iter_task

2024-02-19 12:28:15 +01:00

tcx.c

bpf, tcx: Get rid of tcx_link_const

2023-10-23 15:01:53 -07:00

tnum.c

bpf: simplify tnum output if a fully known constant

2023-12-02 11:36:51 -08:00

token.c

bpf,token: Use BIT_ULL() to convert the bit mask

2024-01-29 20:04:55 -08:00

trampoline.c

bpf: Improve program stats run-time calculation

2024-04-02 16:51:15 +02:00

verifier.c

bpf/verifier: refactor checks for range computation

2024-05-06 17:09:11 -07:00