Andrii Nakryiko d384dce281 bpf: Fix global subprog context argument resolution logic ... KPROBE program's user-facing context type is defined as typedef bpf_user_pt_regs_t. This leads to a problem when trying to passing kprobe/uprobe/usdt context argument into global subprog, as kernel always strip away mods and typedefs of user-supplied type, but takes expected type from bpf_ctx_convert as is, which causes mismatch. Current way to work around this is to define a fake struct with the same name as expected typedef: struct bpf_user_pt_regs_t {}; __noinline my_global_subprog(struct bpf_user_pt_regs_t *ctx) { ... } This patch fixes the issue by resolving expected type, if it's not a struct. It still leaves the above work-around working for backwards compatibility. Fixes: 91cc1a9974 ("bpf: Annotate context types") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/20230216045954.3002473-2-andrii@kernel.org		2023-02-17 21:20:44 +01:00
..
preload	bpf: iterators: Split iterators.lskel.h into little- and big- endian versions	2023-01-28 12:45:15 -08:00
arraymap.c	bpf: Do btf_record_free outside map_free callback	2022-11-17 19:11:31 -08:00
bloom_filter.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
bpf_cgrp_storage.c	bpf: Fix a compilation failure with clang lto build	2022-11-30 17:13:25 -08:00
bpf_inode_storage.c	bpf: Fix a compilation failure with clang lto build	2022-11-30 17:13:25 -08:00
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: use bpf_map_kvcalloc in bpf_local_storage	2023-02-10 18:59:56 -08:00
bpf_lru_list.c
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().	2023-01-26 23:26:40 -08:00
bpf_struct_ops.c	mm: Introduce set_memory_rox()	2022-12-15 10:37:26 -08:00
bpf_struct_ops_types.h	bpf: Add dummy BPF STRUCT_OPS for test purpose	2021-11-01 14:10:00 -07:00
bpf_task_storage.c	bpf: Fix a compilation failure with clang lto build	2022-11-30 17:13:25 -08:00
btf.c	bpf: Fix global subprog context argument resolution logic	2023-02-17 21:20:44 +01:00
cgroup.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-10-03 17:44:18 -07:00
cgroup_iter.c	bpf: Pin the start cgroup in cgroup_iter_seq_init()	2022-11-21 17:40:42 +01:00
core.c	bpf: allow to disable bpf prog memory accounting	2023-02-10 18:59:57 -08:00
cpumap.c	net: skbuff: drop the word head from skb cache	2023-02-10 09:10:28 +00:00
cpumask.c	bpf: Add __bpf_kfunc tag to all kfuncs	2023-02-02 00:25:14 +01:00
devmap.c	bpf: devmap: check XDP features in __xdp_enqueue routine	2023-02-02 20:48:24 -08:00
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: Synchronize dispatcher update with bpf_dispatcher_xdp_func	2022-12-14 12:02:14 -08:00
hashtab.c	bpf: Zeroing allocated object from slab in bpf memory allocator	2023-02-15 15:40:06 -08:00
helpers.c	bpf: Add bpf_rbtree_{add,remove,first} kfuncs	2023-02-13 19:40:48 -08:00
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	bpf: Consolidate spin_lock, timer management into btf_record	2022-11-03 22:19:40 -07:00
lpm_trie.c	bpf: Use bpf_map_area_alloc consistently on bpf map creation	2022-08-10 11:50:43 -07:00
Makefile	bpf: Enable cpumasks to be queried and used as kptrs	2023-01-25 07:57:49 -08:00
map_in_map.c	bpf: Add comments for map BTF matching requirement for bpf_list_head	2022-11-17 19:22:14 -08:00
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	2023-02-15 15:40:06 -08:00
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: Drop always true do_idr_lock parameter to bpf_map_free_id	2023-02-02 20:26:12 -08:00
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: 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: Rename MEM_ALLOC to MEM_RINGBUF	2022-11-14 21:52:45 -08:00
stackmap.c	perf/bpf: Always use perf callchains if exist	2022-09-13 15:03:22 +02:00
syscall.c	bpf: Add basic bpf_rb_{root,node} support	2023-02-13 19:31:13 -08:00
sysfs_btf.c
task_iter.c	bpf: keep a reference to the mm, in case the task is dead.	2022-12-28 14:11:48 -08:00
tnum.c
trampoline.c	bpf: Fix panic due to wrong pageattr of im->image	2022-12-28 13:46:28 -08:00
verifier.c	bpf: BPF_ST with variable offset should preserve STACK_ZERO marks	2023-02-15 11:48:47 -08:00