Loris Reiff 02531b5549 bpf, cgroup: Fix problematic bounds check ...

[ Upstream commit f4a2da755a ]

Since ctx.optlen is signed, a larger value than max_value could be
passed, as it is later on used as unsigned, which causes a WARN_ON_ONCE
in the copy_to_user.

Fixes: 0d01da6afc ("bpf: implement getsockopt and setsockopt hooks")
Signed-off-by: Loris Reiff <loris.reiff@liblor.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20210122164232.61770-2-loris.reiff@liblor.ch
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-02-10 09:25:27 +01:00

..

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, cgroup: Fix problematic bounds check

2021-02-10 09:25:27 +01:00

core.c

bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE

2020-11-18 19:20:26 +01:00

cpumap.c

cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled

2020-05-02 08:48:51 +02:00

devmap.c

devmap: Use bpf_map_area_alloc() for allocating hash buckets

2020-06-30 15:36:56 -04:00

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

bpf: Zero-fill re-used per-cpu map element

2020-11-18 19:20:26 +01:00

helpers.c

bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback

2021-01-23 15:57:56 +01:00

inode.c

bpf: Fix a rcu warning for bpffs map pretty-print

2020-10-01 13:18:19 +02:00

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

Makefile

bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE

2020-11-18 19:20:26 +01:00

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: sockmap: Require attach_bpf_fd when detaching a program

2020-08-07 09:34:02 +02:00

sysfs_btf.c

bpf: Fix sysfs export of empty BTF section

2020-10-14 10:32:58 +02:00

tnum.c

bpf: Fix incorrect verifier simulation of ARSH under ALU32

2020-01-23 08:22:44 +01:00

verifier.c

bpf: Permit map_ptr arithmetic with opcode add and offset 0

2020-11-05 11:43:17 +01:00

xskmap.c

bpf/xskmap: Return ERR_PTR for failure case instead of NULL.

2019-09-25 22:14:16 +02:00