Hou Tao d5092b0a1a bpf: Check validity of link->type in bpf_link_show_fdinfo() ...

[ Upstream commit 8421d4c8762bd022cb491f2f0f7019ef51b4f0a7 ]

If a newly-added link type doesn't invoke BPF_LINK_TYPE(), accessing
bpf_link_type_strs[link->type] may result in an out-of-bounds access.

To spot such missed invocations early in the future, checking the
validity of link->type in bpf_link_show_fdinfo() and emitting a warning
when such invocations are missed.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241024013558.1135167-3-houtao@huaweicloud.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-11-17 15:08:58 +01:00

..

preload

bpf: make preloaded map iterators to display map elements count

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

arraymap.c

bpf: Check percpu map value size first

2024-10-17 15:24:15 +02:00

bloom_filter.c

bpf: Check bloom filter map value size

2024-05-17 12:02:11 +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

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: implement numbers iterator

2023-03-08 16:19:51 -08:00

bpf_local_storage.c

bpf: fix order of args in call to bpf_map_kvcalloc

2024-07-18 13:21:13 +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: Fix the kernel crash caused by bpf_setsockopt().

2023-01-26 23:26:40 -08:00

bpf_struct_ops_types.h

…

bpf_struct_ops.c

bpf: Support default .validate() and .update() behavior for struct_ops links

2023-08-14 22:23:39 -07:00

bpf_task_storage.c

bpf: Teach verifier that certain helpers accept NULL pointer.

2023-04-04 16:57:16 -07:00

btf.c

bpf: Fix memory leak in bpf_core_apply

2024-11-01 01:58:18 +01:00

cgroup_iter.c

cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers

2023-03-17 12:07:13 -10:00

cgroup.c

cgroup/bpf: use a dedicated workqueue for cgroup bpf destruction

2024-11-08 16:28:24 +01:00

core.c

bpf: Prevent tail call between progs attached to different hooks

2024-10-17 15:24:16 +02:00

cpumap.c

bpf: report RCU QS in cpumap kthread

2024-03-26 18:20:12 -04:00

cpumask.c

bpf: Convert bpf_cpumask to bpf_mem_cache_free_rcu.

2023-07-12 23:45:23 +02:00

devmap.c

bpf: devmap: provide rxq after redirect

2024-11-01 01:58:17 +01:00

disasm.c

bpf: change bpf_alu_sign_string and bpf_movsx_string to static

2023-08-04 16:15:50 -07:00

disasm.h

…

dispatcher.c

bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func

2022-12-14 12:02:14 -08:00

hashtab.c

bpf: Check percpu map value size first

2024-10-17 15:24:15 +02:00

helpers.c

bpf: Add MEM_WRITE attribute

2024-11-01 01:58:30 +01:00

inode.c

bpf: convert to ctime accessor functions

2023-07-24 10:30:07 +02:00

Kconfig

bpf: Add fd-based tcx multi-prog infra with link support

2023-07-19 10:07:27 -07:00

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: drop unnecessary user-triggerable WARN_ONCE in verifierl log

2023-05-16 22:34:50 -07:00

lpm_trie.c

bpf: Fix out-of-bounds write in trie_get_next_key()

2024-11-08 16:28:18 +01:00

Makefile

bpf: Add fd-based tcx multi-prog infra with link support

2023-07-19 10:07:27 -07:00

map_in_map.c

bpf: Optimize the free of inner map

2024-06-21 14:38:15 +02:00

map_in_map.h

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

2024-01-25 15:35:22 -08:00

map_iter.c

bpf: allow any program to use the bpf_map_sum_elem_count kfunc

2023-07-19 09:48:53 -07:00

memalloc.c

bpf: Use c->unit_size to select target cache during free

2024-01-25 15:35:28 -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

bpf: Avoid dummy bpf_offload_netdev in __bpf_prog_dev_bound_init

2023-09-11 22:06:06 -07:00

percpu_freelist.c

bpf: Initialize same number of free nodes for each pcpu_freelist

2022-11-11 12:05:14 -08:00

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: Add MEM_WRITE attribute

2024-11-01 01:58:30 +01:00

stackmap.c

bpf: Fix stackmap overflow check on 32-bit arches

2024-03-26 18:19:39 -04:00

syscall.c

bpf: Check validity of link->type in bpf_link_show_fdinfo()

2024-11-17 15:08:58 +01:00

sysfs_btf.c

…

task_iter.c

bpf: Fix iter/task tid filtering

2024-11-01 01:58:25 +01:00

tcx.c

bpf: Handle bpf_mprog_query with NULL entry

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

tnum.c

…

trampoline.c

bpf, x64: Fix tailcall infinite loop

2023-11-20 11:58:55 +01:00

verifier.c

bpf: use kvzmalloc to allocate BPF verifier environment

2024-11-17 15:08:56 +01:00