{"id":"CVE-2026-98204","published":"2026-10-06T09:18:06.383","lastModified":"2026-10-06T09:18:06.383","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: rmi_smbus - fix out-of-bounds read in rmi_smb_write_block()\n\nWhen chunking writes into SMBus blocks in rmi_smb_write_block(), the\nloop calculates block_len using the original total length (len) instead\nof the remaining length (cur_len).\n\nIf len is greater than 32 bytes (SMB_MAX_COUNT), block_len remains 32\nfor every iteration, even on the final partial chunk where fewer than 32\nbytes remain. This causes smb_block_write() to read 32 bytes from the\nadvanced data buffer pointer, reading past the end of the input buffer.\n\nFix this by calculating block_len using cur_len and advancing the buffer\nand address pointers by block_len.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/29fbcf5834f0a7f74bfd017c07da2411b35a4e2a","tags":[]},{"url":"https://git.kernel.org/stable/c/50dd585bee7669eb165e5defcc35d17f3822cfbb","tags":[]},{"url":"https://git.kernel.org/stable/c/51cfe54f815ae175c7d1126b983d4d7c89715004","tags":[]},{"url":"https://git.kernel.org/stable/c/7c800af1c6030a5f27d46ce7d6d5d75f9c1efaf8","tags":[]},{"url":"https://git.kernel.org/stable/c/9f0ce5e162eed8b68345abe839c59768bc60f99a","tags":[]},{"url":"https://git.kernel.org/stable/c/d01337c0892d1509500c727edf81380777c2dd0f","tags":[]},{"url":"https://git.kernel.org/stable/c/dc05ec97b8299e48e31367a9bc412c7e9c0e2b42","tags":[]},{"url":"https://git.kernel.org/stable/c/e022538e13dd1c82af5ec25ac28f12ca0ab26160","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}