Piotr Krysiuk 4e4c85404a bpf: Add sanity check for upper ptr_limit ...

commit 1b1597e64e1a610c7a96710fc4717158e98a08b3 upstream.

Given we know the max possible value of ptr_limit at the time of retrieving
the latter, add basic assertions, so that the verifier can bail out if
anything looks odd and reject the program. Nothing triggered this so far,
but it also does not hurt to have these.

Signed-off-by: Piotr Krysiuk <piotras@gmail.com>
Co-developed-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-03-20 10:39:46 +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

bpf_lru_list: Read double-checked variable once without lock

2021-03-04 10:26:16 +01:00

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: Check for integer overflow when using roundup_pow_of_two()

2021-02-17 10:35:16 +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: Add sanity check for upper ptr_limit

2021-03-20 10:39:46 +01:00

xskmap.c

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

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