CVE-2026-63932
CVE CVE-2026-63932EUVD EUVD-2026-45705Published 2026-07-19T14:55:31.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; 4572a70b3681e38055c78d12fb68cd147bdbee7d <673478bc29cf72010faaf293c1c8c667393335a0; 4572a70b3681e38055c78d12fb68cd147bdbee7d <ea69e7a6efa88ef32090a91064c362738cc19ddd; 4572a70b3681e38055c78d12fb68cd147bdbee7d <a5a05410cb34bfa486d63684cdc1f87a3b13f20a; 6.16; patch: 6.18.35; patch: 7.1; patch: 7.0.12
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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