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Jiri Olsa 1b7b048c22 bpf: Force kprobe multi expected_attach_type for kprobe_multi link 
[ Upstream commit db8eae6bc5c702d8e3ab2d0c6bb5976c131576eb ]

We currently allow to create perf link for program with
expected_attach_type == BPF_TRACE_KPROBE_MULTI.

This will cause crash when we call helpers like get_attach_cookie or
get_func_ip in such program, because it will call the kprobe_multi's
version (current->bpf_ctx context setup) of those helpers while it
expects perf_link's current->bpf_ctx context setup.

Making sure that we use BPF_TRACE_KPROBE_MULTI expected_attach_type
only for programs attaching through kprobe_multi link.

Fixes: ca74823c6e16 ("bpf: Add cookie support to programs attached with kprobe multi link")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230618131414.75649-1-jolsa@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-28 11:12:33 +02:00
..
preload
bpf: iterators: Build and use lightweight bootstrap version of bpftool
2022-07-15 12:01:30 -07:00
arraymap.c
bpf: Support kptrs in percpu arraymap
2022-09-07 11:46:08 -07:00
bloom_filter.c
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
bpf_inode_storage.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
bpf_iter.c
bpf: Initialize the bpf_run_ctx in bpf_iter_run_prog()
2022-08-18 17:06:13 -07:00
bpf_local_storage.c
bpf: Annotate data races in bpf_local_storage
2023-05-24 17:32:36 +01:00
bpf_lru_list.c
bpf_lru_list: Read double-checked variable once without lock
2021-02-10 15:54:26 -08:00
bpf_lru_list.h
printk: stop including cache.h from printk.h
2022-05-13 07:20:07 -07:00
bpf_lsm.c
bpf: Fix the kernel crash caused by bpf_setsockopt().
2023-02-09 11:28:02 +01:00
bpf_struct_ops_types.h
bpf: Add dummy BPF STRUCT_OPS for test purpose
2021-11-01 14:10:00 -07:00
bpf_struct_ops.c
bpf: Remove is_valid_bpf_tramp_flags()
2022-07-11 21:04:58 +02:00
bpf_task_storage.c
bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy
2022-09-01 12:16:12 -07:00
btf.c
bpf/btf: Accept function names that contain dots
2023-06-28 11:12:33 +02:00
cgroup_iter.c
cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
2023-06-21 16:00:51 +02:00
cgroup.c
cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
2023-06-21 16:00:51 +02:00
core.c
bpf: Adjust insufficient default bpf_jit_limit
2023-03-30 12:49:08 +02:00
cpumap.c
bpf: Use bpf_map_area_alloc consistently on bpf map creation
2022-08-10 11:50:43 -07:00
devmap.c
bpf: Use bpf_map_area_alloc consistently on bpf map creation
2022-08-10 11:50:43 -07:00
disasm.c
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
disasm.h
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
dispatcher.c
bpf: Add explicit cast to 'void *' for __BPF_DISPATCHER_UPDATE()
2022-11-07 16:07:35 -08:00
hashtab.c
bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps
2023-05-30 14:03:21 +01:00
helpers.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-10-03 17:44:18 -07:00
inode.c
bpf: Convert bpf_preload.ko to use light skeleton.
2022-02-10 23:31:51 +01:00
Kconfig
rcu: Make the TASKS_RCU Kconfig option be selected
2022-04-20 16:52:58 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
2023-06-21 16:00:51 +02:00
lpm_trie.c
bpf: Use bpf_map_area_alloc consistently on bpf map creation
2022-08-10 11:50:43 -07:00
Makefile
bpf: Introduce any context BPF specific memory allocator.
2022-09-05 15:33:05 +02:00
map_in_map.c
bpf: Fix elem_size not being set for inner maps
2023-06-14 11:15:17 +02:00
map_in_map.h
…
map_iter.c
bpf: Introduce MEM_RDONLY flag
2021-12-18 13:27:41 -08:00
memalloc.c
bpf: Zeroing allocated object from slab in bpf memory allocator
2023-03-10 09:33:06 +01:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
offload.c
bpf: restore the ebpf program ID for BPF_AUDIT_UNLOAD and PERF_BPF_EVENT_PROG_UNLOAD
2023-01-24 07:24:37 +01:00
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
bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI
2020-10-06 00:04:11 +02:00
prog_iter.c
…
queue_stack_maps.c
bpf: Remove unneeded memset in queue_stack_map creation
2022-08-10 11:48:22 -07:00
reuseport_array.c
net: Fix suspicious RCU usage in bpf_sk_reuseport_detach()
2022-08-17 16:42:59 -07:00
ringbuf.c
bpf: Add bpf_user_ringbuf_drain() helper
2022-09-21 16:24:58 -07:00
stackmap.c
perf/bpf: Always use perf callchains if exist
2022-09-13 15:03:22 +02:00
syscall.c
bpf: Force kprobe multi expected_attach_type for kprobe_multi link
2023-06-28 11:12:33 +02:00
sysfs_btf.c
bpf: Load and verify kernel module BTFs
2020-11-10 15:25:53 -08:00
task_iter.c
bpf: keep a reference to the mm, in case the task is dead.
2023-01-24 07:24:31 +01:00
tnum.c
bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul
2021-06-01 13:34:15 +02:00
trampoline.c
bpf: Fix panic due to wrong pageattr of im->image
2023-01-12 12:02:45 +01:00
verifier.c
bpf: Fix verifier id tracking of scalars on spill
2023-06-28 11:12:28 +02:00