Lee Jones 98671fcc32 UPSTREAM: bpf: Ensure correct locking around vulnerable function find_vpid() ... [ Upstream commit 83c10cc362 ] The documentation for find_vpid() clearly states: "Must be called with the tasklist_lock or rcu_read_lock() held." Presently we do neither for find_vpid() instance in bpf_task_fd_query(). Add proper rcu_read_lock/unlock() to fix the issue. Bug: 232939090 Fixes: 41bdc4b40e ("bpf: introduce bpf subcommand BPF_TASK_FD_QUERY") Signed-off-by: Lee Jones <lee@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20220912133855.1218900-1-lee@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: I517b52d97a22b92be1a479279067ddb7b84efbba		2022-12-08 11:25:09 +00:00
..
preload
arraymap.c	bpf: Acquire map uref in .init_seq_private for array map iterator	2022-08-25 11:37:55 +02:00
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_types.h
bpf_struct_ops.c	This is the 5.10.71 stable release	2021-10-06 17:33:06 +02:00
btf.c	bpf: Disallow BPF_LOG_KERNEL log level for bpf(BPF_BTF_LOAD)	2022-01-27 10:53:54 +01:00
cgroup.c	bpf, cgroup: Fix kernel BUG in purge_effective_progs	2022-09-08 11:11:36 +02:00
core.c	This is the 5.10.134 stable release	2022-08-03 12:42:13 +02:00
cpumap.c
devmap.c	bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc	2021-12-17 10:14:41 +01:00
disasm.c	bpf: Introduce BPF nospec instruction for mitigating Spectre v4	2021-08-04 12:46:44 +02:00
disasm.h
dispatcher.c
hashtab.c	bpf: Acquire map uref in .init_seq_private for hash map iterator	2022-08-25 11:37:55 +02:00
helpers.c	bpf: Fix potentially incorrect results with bpf_get_local_storage()	2021-09-03 10:09:31 +02:00
inode.c	bpf: link: Refuse non-O_RDWR flags in BPF_OBJ_GET	2021-04-14 08:42:00 +02:00
local_storage.c	bpf: Fix NULL pointer dereference in bpf_get_local_storage() helper	2021-09-03 10:09:21 +02:00
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
map_iter.c
net_namespace.c
offload.c
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c
reuseport_array.c
ringbuf.c	bpf: Use VM_MAP instead of VM_ALLOC for ringbuf	2022-02-08 18:30:39 +01:00
stackmap.c	bpf: Fix incorrect memory charge cost calculation in stack_map_alloc()	2022-06-22 14:13:12 +02:00
syscall.c	UPSTREAM: bpf: Ensure correct locking around vulnerable function find_vpid()	2022-12-08 11:25:09 +00:00
sysfs_btf.c
task_iter.c
tnum.c
trampoline.c	This is the 5.10.120 stable release	2022-07-23 16:09:48 +02:00
verifier.c	This is the 5.10.140 stable release	2022-08-31 18:52:48 +02:00