Edward Cree 545722cb0f selftests/bpf: subtraction bounds test ...

There is a bug in the verifier's handling of BPF_SUB: [a,b] - [c,d] yields
 was [a-c, b-d] rather than the correct [a-d, b-c].  So here is a test
 which, with the bogus handling, will produce ranges of [0,0] and thus
 allowed accesses; whereas the correct handling will give a range of
 [-255, 255] (and hence the right-shift will give a range of [0, 255]) and
 the accesses will be rejected.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-07-24 14:02:55 -07:00

..

gnu

selftests/bpf: get rid of -D__x86_64__

2017-05-03 09:51:25 -04:00

include/uapi/linux

selftests/bpf: fix broken build due to types.h

2017-05-17 18:45:14 -04:00

.gitignore

bpf: Add test_tag to .gitignore

2017-02-10 15:56:08 -05:00

bpf_endian.h

samples/bpf: fix a build issue

2017-07-11 20:51:29 -07:00

bpf_helpers.h

samples/bpf: fix a build issue

2017-07-11 20:51:29 -07:00

bpf_util.h

bpf: Move endianness BPF helpers out of bpf_util.h

2017-05-01 12:43:49 -07:00

config

bpf: add initial suite for selftests

2016-10-18 11:35:55 -04:00

Makefile

samples/bpf: fix a build issue

2017-07-11 20:51:29 -07:00

test_align.c

bpf: allow to specify log level and reduce it for test_verifier

2017-07-20 15:20:27 -07:00

test_iptunnel_common.h

selftests/bpf: add a test for basic XDP functionality

2017-04-01 12:45:57 -07:00

test_kmod.sh

selftests: do not require bash to run bpf tests

2017-01-05 13:19:47 -07:00

test_l4lb.c

bpf: Move endianness BPF helpers out of bpf_util.h

2017-05-01 12:43:49 -07:00

test_lpm_map.c

bpf: Remove bpf_sys.h from selftests

2017-02-10 15:56:08 -05:00

test_lru_map.c

bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4

2017-04-17 13:55:52 -04:00

test_maps.c

bpf, tests: add a test for htab lookup + update traversal

2017-06-10 19:05:46 -04:00

test_obj_id.c

bpf: Fix test_obj_id.c for llvm 5.0

2017-06-09 15:15:11 -04:00

test_pkt_access.c

selftests/bpf: fix broken build due to types.h

2017-05-17 18:45:14 -04:00

test_pkt_md_access.c

selftests/bpf: Add test cases to test narrower ctx field loads

2017-06-14 14:56:25 -04:00

test_progs.c

selftests/bpf: Add test cases to test narrower ctx field loads

2017-06-14 14:56:25 -04:00

test_tag.c

bpf: Remove bpf_sys.h from selftests

2017-02-10 15:56:08 -05:00

test_tcp_estats.c

selftests/bpf: add a test case to check verifier pointer arithmetic

2017-05-03 09:51:25 -04:00

test_verifier.c

selftests/bpf: subtraction bounds test

2017-07-24 14:02:55 -07:00

test_xdp.c

selftests: bpf: Use bpf_endian.h in test_xdp.c

2017-05-02 07:52:01 -07:00