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Hou Tao
ebafc1e535
Add more test cases for bits iterator: (1) huge word test Verify the multiplication overflow of nr_bits in bits_iter. Without the overflow check, when nr_words is 67108865, nr_bits becomes 64, causing bpf_probe_read_kernel_common() to corrupt the stack. (2) max word test Verify correct handling of maximum nr_words value (511). (3) bad word test Verify early termination of bits iteration when bits iterator initialization fails. Also rename bits_nomem to bits_too_big to better reflect its purpose. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241030100516.3633640-6-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Linux kernel
============
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