diff options
author | Jakub Kicinski <kuba@kernel.org> | 2022-01-07 05:07:25 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2022-01-07 05:07:26 +0300 |
commit | 257367c0c9d800ef3065b440161596896e179038 (patch) | |
tree | 067926de0948a6a04d115fa9ece37d20e10975f9 /tools/testing/selftests/bpf/verifier | |
parent | 710ad98c363a66a0cd8526465426c5c5f8377ee0 (diff) | |
parent | eff14fcd032bc1b403c1716f6823b3c72c58096a (diff) | |
download | linux-257367c0c9d800ef3065b440161596896e179038.tar.xz |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2022-01-06
We've added 41 non-merge commits during the last 2 day(s) which contain
a total of 36 files changed, 1214 insertions(+), 368 deletions(-).
The main changes are:
1) Various fixes in the verifier, from Kris and Daniel.
2) Fixes in sockmap, from John.
3) bpf_getsockopt fix, from Kuniyuki.
4) INET_POST_BIND fix, from Menglong.
5) arm64 JIT fix for bpf pseudo funcs, from Hou.
6) BPF ISA doc improvements, from Christoph.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (41 commits)
bpf: selftests: Add bind retry for post_bind{4, 6}
bpf: selftests: Use C99 initializers in test_sock.c
net: bpf: Handle return value of BPF_CGROUP_RUN_PROG_INET{4,6}_POST_BIND()
bpf/selftests: Test bpf_d_path on rdonly_mem.
libbpf: Add documentation for bpf_map batch operations
selftests/bpf: Don't rely on preserving volatile in PT_REGS macros in loop3
xdp: Add xdp_do_redirect_frame() for pre-computed xdp_frames
xdp: Move conversion to xdp_frame out of map functions
page_pool: Store the XDP mem id
page_pool: Add callback to init pages when they are allocated
xdp: Allow registering memory model without rxq reference
samples/bpf: xdpsock: Add timestamp for Tx-only operation
samples/bpf: xdpsock: Add time-out for cleaning Tx
samples/bpf: xdpsock: Add sched policy and priority support
samples/bpf: xdpsock: Add cyclic TX operation capability
samples/bpf: xdpsock: Add clockid selection support
samples/bpf: xdpsock: Add Dest and Src MAC setting for Tx-only operation
samples/bpf: xdpsock: Add VLAN support for Tx-only operation
libbpf 1.0: Deprecate bpf_object__find_map_by_offset() API
libbpf 1.0: Deprecate bpf_map__is_offload_neutral()
...
====================
Link: https://lore.kernel.org/r/20220107013626.53943-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/verifier')
-rw-r--r-- | tools/testing/selftests/bpf/verifier/spill_fill.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/spill_fill.c b/tools/testing/selftests/bpf/verifier/spill_fill.c index 6c907144311f..1a8eb9672bd1 100644 --- a/tools/testing/selftests/bpf/verifier/spill_fill.c +++ b/tools/testing/selftests/bpf/verifier/spill_fill.c @@ -59,6 +59,34 @@ .result_unpriv = ACCEPT, }, { + "check with invalid reg offset 0", + .insns = { + /* reserve 8 byte ringbuf memory */ + BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_MOV64_IMM(BPF_REG_2, 8), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve), + /* store a pointer to the reserved memory in R6 */ + BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), + /* add invalid offset to memory or NULL */ + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + /* check whether the reservation was successful */ + BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), + /* should not be able to access *(R7) = 0 */ + BPF_ST_MEM(BPF_W, BPF_REG_6, 0, 0), + /* submit the reserved ringbuf memory */ + BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), + BPF_MOV64_IMM(BPF_REG_2, 0), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .fixup_map_ringbuf = { 1 }, + .result = REJECT, + .errstr = "R0 pointer arithmetic on mem_or_null prohibited", +}, +{ "check corrupted spill/fill", .insns = { /* spill R1(ctx) into stack */ |