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| author | Zi Shen Lim <zlim.lnx@gmail.com> | 2015-11-03 22:56:44 -0800 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-11-06 16:58:36 +0000 |
| commit | 251599e1d6906621f49218d7b474ddd159e58f3b (patch) | |
| tree | 084a03813a419e5abcddf38524ba101255980f5f /arch/arm64/lib/clear_user.S | |
| parent | 4d17da4ca7cca51ccacc07ece684bb6ea6bfaa7d (diff) | |
| download | talos-op-linux-251599e1d6906621f49218d7b474ddd159e58f3b.tar.gz talos-op-linux-251599e1d6906621f49218d7b474ddd159e58f3b.zip | |
arm64: bpf: fix div-by-zero case
In the case of division by zero in a BPF program:
A = A / X; (X == 0)
the expected behavior is to terminate with return value 0.
This is confirmed by the test case introduced in commit 86bf1721b226
("test_bpf: add tests checking that JIT/interpreter sets A and X to 0.").
Reported-by: Yang Shi <yang.shi@linaro.org>
Tested-by: Yang Shi <yang.shi@linaro.org>
CC: Xi Wang <xi.wang@gmail.com>
CC: Alexei Starovoitov <ast@plumgrid.com>
CC: linux-arm-kernel@lists.infradead.org
CC: linux-kernel@vger.kernel.org
Fixes: e54bcde3d69d ("arm64: eBPF JIT compiler")
Cc: <stable@vger.kernel.org> # 3.18+
Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/lib/clear_user.S')
0 files changed, 0 insertions, 0 deletions
