CVE-2026-63932: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19b_receive_buf() appends each serdev chunk into the fixed MHZ19B_CMD_SIZE receive buffer and advances buf_idx by len without checking that the chunk fits in the remaining space. A large callback can therefore overflow st->buf before the command path validates the reply. Reset the reply state before each command and reject oversized serial replies before copying them into the fixed buffer. When an oversized reply is detected, wake the waiter and report -EMSGSIZE instead of overwriting st->buf.

Засегнати продукти

• Linux Linux: 4572a70b3681e38055c78d12fb68cd147bdbee7d преди a5a05410cb34bfa486d63684cdc1f87a3b13f20a; 4572a70b3681e38055c78d12fb68cd147bdbee7d преди ea69e7a6efa88ef32090a91064c362738cc19ddd; 4572a70b3681e38055c78d12fb68cd147bdbee7d преди 673478bc29cf72010faaf293c1c8c667393335a0
• Linux Linux: 6.16; преди 6.16; 6.18.35 до 6.18.*; 7.0.12 до 7.0.*; от 7.1 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-63932
• https://nvd.nist.gov/vuln/detail/CVE-2026-63932
• https://git.kernel.org/stable/c/a5a05410cb34bfa486d63684cdc1f87a3b13f20a
• https://git.kernel.org/stable/c/ea69e7a6efa88ef32090a91064c362738cc19ddd
• https://git.kernel.org/stable/c/673478bc29cf72010faaf293c1c8c667393335a0