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CVE-2026-80748

mmc: loongson2: Fix sg iteration in data reorder functions PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 2115772014bdac368317e997ed15016cf2792665 before 8f7f7a6d5aed8f346a1c936fba02033c73a337dc; affected 2115772014bdac368317e997ed15016cf2792665 before db368164383c46f256ed8152a41ae9300e615028; affected 2115772014bdac368317e997ed15016cf2792665 before 00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c
Linux / Linuxaffected 6.17; unaffected 0 before 6.17; unaffected 6.18.46 through 6.18.*; unaffected 7.1.10 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References