Stanislav Fomichev 67929e973f bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE ... [ Upstream commit 543576ec15 ] bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association. Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks. Fixes: af6eea5743 ("bpf: Implement bpf_link-based cgroup BPF program attachment") Link: https://lore.kernel.org/bpf/0000000000004792a90615a1dde0@google.com/ Reported-by: syzbot+838346b979830606c854@syzkaller.appspotmail.com Signed-off-by: Stanislav Fomichev <sdf@google.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20240426231621.2716876-2-sdf@google.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-05-30 09:49:19 +02:00
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preload	…
Kconfig	…
Makefile	kbuild: make -Woverride-init warnings more consistent	2024-04-10 16:38:00 +02:00
arraymap.c	…
bloom_filter.c	bpf: Check bloom filter map value size	2024-05-17 12:14:39 +02:00
bpf_cgrp_storage.c	…
bpf_inode_storage.c	…
bpf_iter.c	…
bpf_local_storage.c	…
bpf_lru_list.c	…
bpf_lru_list.h	…
bpf_lsm.c	…
bpf_struct_ops.c	…
bpf_struct_ops_types.h	…
bpf_task_storage.c	…
btf.c	bpf: don't emit warnings intended for global subprogs for static subprogs	2024-03-26 18:16:38 -04:00
cgroup.c	…
cgroup_iter.c	…
core.c	bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes()	2024-03-26 18:16:57 -04:00
cpumap.c	bpf: report RCU QS in cpumap kthread	2024-03-26 18:17:38 -04:00
cpumask.c	…
devmap.c	bpf: Fix DEVMAP_HASH overflow check on 32-bit arches	2024-03-26 18:16:55 -04:00
disasm.c	…
disasm.h	…
dispatcher.c	…
hashtab.c	bpf: Fix hashtab overflow check on 32-bit arches	2024-03-26 18:16:55 -04:00
helpers.c	bpf: Mark bpf_spin_{lock,unlock}() helpers with notrace correctly	2024-03-26 18:16:43 -04:00
inode.c	bpf: Re-support uid and gid when mounting bpffs	2023-12-21 14:24:30 +01:00
link_iter.c	…
local_storage.c	…
log.c	…
lpm_trie.c	…
map_in_map.c	…
map_in_map.h	…
map_iter.c	…
memalloc.c	bpf: Remove unnecessary cpu == 0 check in memalloc	2024-01-04 10:18:14 -08:00
mmap_unlock_work.h	…
mprog.c	…
net_namespace.c	…
offload.c	…
percpu_freelist.c	…
percpu_freelist.h	…
prog_iter.c	…
queue_stack_maps.c	…
reuseport_array.c	…
ringbuf.c	…
stackmap.c	bpf: Fix stackmap overflow check on 32-bit arches	2024-03-26 18:16:55 -04:00
syscall.c	bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE	2024-05-30 09:49:19 +02:00
sysfs_btf.c	…
task_iter.c	bpf: Fix an issue due to uninitialized bpf_iter_task	2024-02-19 12:28:15 +01:00
tcx.c	…
tnum.c	…
trampoline.c	…
verifier.c	bpf: Fix verifier assumptions about socket->sk	2024-05-30 09:49:17 +02:00