Hello:
This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Fri, 13 Sep 2024 08:03:26 -0700 you wrote:
> Zac Ecob reported a problem where a bpf program may cause kernel crash due
> to the following error:
> Oops: divide error: 0000 [#1] PREEMPT SMP KASAN PTI
>
> The failure is due to the below signed divide:
> LLONG_MIN/-1 where LLONG_MIN equals to -9,223,372,036,854,775,808.
> LLONG_MIN/-1 is supposed to give a positive number 9,223,372,036,854,775,808,
> but it is impossible since for 64-bit system, the maximum positive
> number is 9,223,372,036,854,775,807. On x86_64, LLONG_MIN/-1 will
> cause a kernel exception. On arm64, the result for LLONG_MIN/-1 is
> LLONG_MIN.
>
> [...]
Here is the summary with links:
- [bpf-next,v3,1/2] bpf: Fix a sdiv overflow issue
https://git.kernel.org/bpf/bpf-next/c/7dd34d7b7dcf
- [bpf-next,v3,2/2] selftests/bpf: Add tests for sdiv/smod overflow cases
https://git.kernel.org/bpf/bpf-next/c/a18062d54a0b
You are awesome, thank you!
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