diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2020-12-11 20:12:36 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-11 22:29:38 -0800 |
| commit | 46d5e62dd3c34770f3bfd0642daa9a7772a00362 (patch) | |
| tree | 72f00a33d177cae0c8c9d7337ced3a6c6bbad45d /kernel/bpf/verifier.c | |
| parent | 91163f82143630a9629a8bf0227d49173697c69c (diff) | |
| parent | 7f376f1917d7461e05b648983e8d2aea9d0712b2 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
xdp_return_frame_bulk() needs to pass a xdp_buff
to __xdp_return().
strlcpy got converted to strscpy but here it makes no
functional difference, so just keep the right code.
Conflicts:
net/netfilter/nf_tables_api.c
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/bpf/verifier.c')
| -rw-r--r-- | kernel/bpf/verifier.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 93def76cf32b..d43b30c92c7d 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -1299,9 +1299,7 @@ static void __reg_combine_32_into_64(struct bpf_reg_state *reg) static bool __reg64_bound_s32(s64 a) { - if (a > S32_MIN && a < S32_MAX) - return true; - return false; + return a > S32_MIN && a < S32_MAX; } static bool __reg64_bound_u32(u64 a) @@ -1315,10 +1313,10 @@ static void __reg_combine_64_into_32(struct bpf_reg_state *reg) { __mark_reg32_unbounded(reg); - if (__reg64_bound_s32(reg->smin_value)) + if (__reg64_bound_s32(reg->smin_value) && __reg64_bound_s32(reg->smax_value)) { reg->s32_min_value = (s32)reg->smin_value; - if (__reg64_bound_s32(reg->smax_value)) reg->s32_max_value = (s32)reg->smax_value; + } if (__reg64_bound_u32(reg->umin_value)) reg->u32_min_value = (u32)reg->umin_value; if (__reg64_bound_u32(reg->umax_value)) @@ -4942,6 +4940,8 @@ static void do_refine_retval_range(struct bpf_reg_state *regs, int ret_type, ret_reg->smax_value = meta->msize_max_value; ret_reg->s32_max_value = meta->msize_max_value; + ret_reg->smin_value = -MAX_ERRNO; + ret_reg->s32_min_value = -MAX_ERRNO; __reg_deduce_bounds(ret_reg); __reg_bound_offset(ret_reg); __update_reg_bounds(ret_reg); |