1
0
Fork 0
alistair23-linux/kernel/bpf
Greg Kroah-Hartman 877f28596d bpf: Explicitly memset some bpf info structures declared on the stack
commit 5c6f258879 upstream.

Trying to initialize a structure with "= {};" will not always clean out
all padding locations in a structure. So be explicit and call memset to
initialize everything for a number of bpf information structures that
are then copied from userspace, sometimes from smaller memory locations
than the size of the structure.

Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200320162258.GA794295@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-02 15:11:01 +02:00
..
Makefile btf: expose BTF info through sysfs 2019-08-13 16:14:15 +02:00
arraymap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
bpf_lru_list.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
bpf_lru_list.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
btf.c bpf: Explicitly memset some bpf info structures declared on the stack 2020-04-02 15:11:01 +02:00
cgroup.c bpf: Initialize storage pointers to NULL to prevent freeing garbage pointer 2020-04-01 11:02:11 +02:00
core.c bpf: Fix use after free in subprog's jited symbol removal 2019-10-22 11:26:09 -07:00
cpumap.c devmap/cpumap: Use flush list instead of bitmap 2019-06-29 01:31:08 +02:00
devmap.c bpf, devmap: Pass lockdep expression to RCU lists 2020-02-11 04:35:29 -08:00
disasm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
disasm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
hashtab.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
helpers.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
inode.c bpf: map_seq_next should always increase position index 2020-02-24 08:36:58 +01:00
local_storage.c bpf: move memory size checks to bpf_map_charge_init() 2019-05-31 16:52:56 -07:00
lpm_trie.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
map_in_map.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
map_in_map.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
offload.c bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill 2020-02-28 17:22:27 +01:00
percpu_freelist.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
percpu_freelist.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
queue_stack_maps.c bpf: move memory size checks to bpf_map_charge_init() 2019-05-31 16:52:56 -07:00
reuseport_array.c bpf: move memory size checks to bpf_map_charge_init() 2019-05-31 16:52:56 -07:00
stackmap.c bpf/stackmap: Fix deadlock with rq_lock in bpf_get_stack() 2019-12-31 16:44:09 +01:00
syscall.c bpf: Explicitly memset some bpf info structures declared on the stack 2020-04-02 15:11:01 +02:00
sysfs_btf.c btf: fix return value check in btf_vmlinux_init() 2019-08-15 22:18:17 -07:00
tnum.c bpf: Fix incorrect verifier simulation of ARSH under ALU32 2020-01-23 08:22:44 +01:00
verifier.c bpf: Undo incorrect __reg_bound_offset32 handling 2020-04-01 11:02:13 +02:00
xskmap.c bpf/xskmap: Return ERR_PTR for failure case instead of NULL. 2019-09-25 22:14:16 +02:00