From: Eduard Zingerman <eddyz87@gmail.com>
To: Daniel Borkmann <daniel@iogearbox.net>, bpf@vger.kernel.org
Cc: nathaniel.theis@nccgroup.com, ast@kernel.org, andrii@kernel.org,
john.fastabend@gmail.com
Subject: Re: [PATCH bpf 3/3] selftests/bpf: Add test case for delta propagation
Date: Wed, 16 Oct 2024 14:56:48 -0700 [thread overview]
Message-ID: <2450761417062a854035230fbf2829888462debb.camel@gmail.com> (raw)
In-Reply-To: <20241016134913.32249-3-daniel@iogearbox.net>
On Wed, 2024-10-16 at 15:49 +0200, Daniel Borkmann wrote:
> Add a small BPF verifier test case to ensure that alu32 additions to
> registers are not subject to linked scalar delta tracking.
>
> # ./vmtest.sh -- ./test_progs -t verifier_linked_scalars
> [...]
> ./test_progs -t verifier_linked_scalars
> [ 1.413138] tsc: Refined TSC clocksource calibration: 3407.993 MHz
> [ 1.413524] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fcd52370, max_idle_ns: 440795242006 ns
> [ 1.414223] clocksource: Switched to clocksource tsc
> [ 1.419640] bpf_testmod: loading out-of-tree module taints kernel.
> [ 1.420025] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
> #500/1 verifier_linked_scalars/scalars: find linked scalars:OK
> #500 verifier_linked_scalars:OK
> Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED
> [ 1.590858] ACPI: PM: Preparing to enter system sleep state S5
> [ 1.591402] reboot: Power down
> [...]
>
> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
> ---
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
next prev parent reply other threads:[~2024-10-16 21:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-16 13:49 [PATCH bpf 1/3] bpf: Fix incorrect delta propagation between linked registers Daniel Borkmann
2024-10-16 13:49 ` [PATCH bpf 2/3] bpf: Fix print_reg_state's constant scalar dump Daniel Borkmann
2024-10-16 20:16 ` Andrii Nakryiko
2024-10-16 13:49 ` [PATCH bpf 3/3] selftests/bpf: Add test case for delta propagation Daniel Borkmann
2024-10-16 21:56 ` Eduard Zingerman [this message]
2024-10-16 22:12 ` [PATCH bpf 1/3] bpf: Fix incorrect delta propagation between linked registers Eduard Zingerman
2024-10-17 18:10 ` patchwork-bot+netdevbpf
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