CVE-2026-80748

Summary

In the Linux kernel, the following vulnerability has been resolved:

mmc: loongson2: Fix sg iteration in data reorder functions

In ls2k0500_mmc_reorder_cmd_data() and ls2k2000_mmc_reorder_cmd_data(), the for_each_sg() macro already iterates over the scatterlist entries, with 'sg' pointing to the current entry. However, the code incorrectly uses '&sg[i]' and 'sg_dma_len(&sg[i])' inside the loop, which treats 'sg' as an array base and indexes it again, leading to access of wrong sg entries (or out-of-bounds if the list is not an array).

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/8f7f7a6d5aed8f346a1c936fba02033c73a337dc
• https://git.kernel.org/stable/c/db368164383c46f256ed8152a41ae9300e615028
• https://git.kernel.org/stable/c/00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c

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