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CVE-2026-63932

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 i
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b37a78b2310ee02634ae2f3dfecd5f7efa437721a8468bc7d80c5dd7ec593042
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iio/chemical/mhz19b.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fi…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iio/chemical/mhz19b.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a5a05410cb34bfa486d63684cdc1f87a3b13f20a","status":"affected","version":"4572a70b3681e38055c78d12fb68cd147bdbee7d","versionType":"git"},{"lessThan":"ea69e7a6efa88ef32090a91064c362738cc19ddd","status":"affected","version":"4572a70b3681e38055c78d12fb68cd147bdbee7d","versionType":"git"},{"lessThan":"673478bc29cf72010faaf293c1c8c667393335a0","status":"affected","version":"4572a70b3681e380…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iio/chemical/mhz19b.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fi…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iio/chemical/mhz19b.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a5a05410cb34bfa486d63684cdc1f87a3b13f20a","status":"affected","version":"4572a70b3681e38055c78d12fb68cd147bdbee7d","versionType":"git"},{"lessThan":"ea69e7a6efa88ef32090a91064c362738cc19ddd","status":"affected","version":"4572a70b3681e38055c78d12fb68cd147bdbee7d","versionType":"git"},{"lessThan":"673478bc29cf72010faaf293c1c8c667393335a0","status":"affected","version":"4572a70b3681e380…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/673478bc29cf72010faaf293c1c8c667393335a0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a5a05410cb34bfa486d63684cdc1f87a3b13f20a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ea69e7a6efa88ef32090a91064c362738cc19ddd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8fcd1184722ec69b84fecc4f534b6f36a1cb50bb4e81d3ddec8f0d597bf3e33b · sha256:dc76c2d228b82c42… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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