From 836b2fe544a5e9b5ce116622cb36fba33838c6fd Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 01:33:23 -0700 Subject: selftests/bpf: Check that JMP32 pointer vs zero jumps are not predicted Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which the verifier used to skip, contains an out of bounds map value access, hence w/o the previous patch the program is accepted. See previous patch for detailed description. Reported-by: Nicholas Carlini Suggested-by: Nicholas Carlini Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- rust/helpers/time.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 rust/helpers/time.c (limited to 'rust/helpers/time.c') diff --git a/rust/helpers/time.c b/rust/helpers/time.c new file mode 100644 index 000000000..32f495970 --- /dev/null +++ b/rust/helpers/time.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include + +__rust_helper void rust_helper_fsleep(unsigned long usecs) +{ + fsleep(usecs); +} + +__rust_helper ktime_t rust_helper_ktime_get_real(void) +{ + return ktime_get_real(); +} + +__rust_helper ktime_t rust_helper_ktime_get_boottime(void) +{ + return ktime_get_boottime(); +} + +__rust_helper ktime_t rust_helper_ktime_get_clocktai(void) +{ + return ktime_get_clocktai(); +} + +__rust_helper s64 rust_helper_ktime_to_us(const ktime_t kt) +{ + return ktime_to_us(kt); +} + +__rust_helper s64 rust_helper_ktime_to_ms(const ktime_t kt) +{ + return ktime_to_ms(kt); +} + +__rust_helper void rust_helper_udelay(unsigned long usec) +{ + udelay(usec); +} -- cgit v1.3.1