Lee Jones c087c35292 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. 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>		2022-10-26 12:34:44 +02:00
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preload	libbpf: Move BPF_SEQ_PRINTF and BPF_SNPRINTF to bpf_helpers.h	2021-05-26 10:45:41 -07:00
Kconfig	sock_map: Relax config dependency to CONFIG_NET	2021-07-15 18:17:49 -07:00
Makefile	…
arraymap.c	bpf: Acquire map uref in .init_seq_private for array map iterator	2022-08-25 11:40:03 +02:00
bpf_inode_storage.c	bpf: Fix spelling mistakes	2021-05-24 21:13:05 -07:00
bpf_iter.c	bpf: Refactor BPF_PROG_RUN into a function	2021-08-17 00:45:07 +02:00
bpf_local_storage.c	bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy	2022-10-26 12:34:41 +02:00
bpf_lru_list.c	…
bpf_lru_list.h	…
bpf_lsm.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2021-06-17 11:54:56 -07:00
bpf_struct_ops.c	bpf: Handle return value of BPF_PROG_TYPE_STRUCT_OPS prog	2021-09-14 11:09:50 -07:00
bpf_struct_ops_types.h	…
bpf_task_storage.c	bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy	2022-10-26 12:34:41 +02:00
btf.c	bpf: btf: fix truncated last_member_type_id in btf_struct_resolve	2022-10-26 12:34:42 +02:00
cgroup.c	bpf, cgroup: Fix kernel BUG in purge_effective_progs	2022-09-08 12:28:01 +02:00
core.c	bpf: Make sure mac_header was set before using it	2022-07-29 17:25:24 +02:00
cpumap.c	bpf: cpumap: Implement generic cpumap	2021-07-07 20:01:45 -07:00
devmap.c	bpf, devmap: Exclude XDP broadcast to master device	2021-08-09 23:25:14 +02:00
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	…
hashtab.c	bpf: Propagate error from htab_lock_bucket() to userspace	2022-10-26 12:34:40 +02:00
helpers.c	bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.	2022-05-01 17:22:26 +02:00
inode.c	bpf: Fix mount source show for bpffs	2022-01-27 11:05:26 +01:00
local_storage.c	bpf: Increase supported cgroup storage value size	2021-07-27 15:59:29 -07:00
lpm_trie.c	bpf: Allow RCU-protected lookups to happen from bh context	2021-06-24 19:41:15 +02:00
map_in_map.c	bpf: Remember BTF of inner maps.	2021-07-15 22:31:10 +02:00
map_in_map.h	…
map_iter.c	bpf: Introduce MEM_RDONLY flag	2022-05-01 17:22:24 +02:00
net_namespace.c	…
offload.c	…
percpu_freelist.c	…
percpu_freelist.h	…
prog_iter.c	…
queue_stack_maps.c	…
reuseport_array.c	bpf: Fix spelling mistakes	2021-05-24 21:13:05 -07:00
ringbuf.c	bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.	2022-05-01 17:22:26 +02:00
stackmap.c	bpf: Fix excessive memory allocation in stack_map_alloc()	2022-06-06 08:43:42 +02:00
syscall.c	bpf: Ensure correct locking around vulnerable function find_vpid()	2022-10-26 12:34:44 +02:00
sysfs_btf.c	…
task_iter.c	bpf: Consolidate task_struct BTF_ID declarations	2021-08-25 10:37:05 -07:00
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 potential array overflow in bpf_trampoline_get_progs()	2022-06-06 08:43:42 +02:00
verifier.c	bpf: Fix reference state management for synchronous callbacks	2022-10-26 12:34:39 +02:00