CVE-2026-64175: wifi: iwlwifi: mld: stop TX during firmware restart

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel6.15 and later · before 6.18.34
• linux linux kernel6.19 and later · before 7.0.11
• linux linux kernel7.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 6.15affected
  • d1e879ec600f9b3bdd253167533959facfefb17b and later · before dc31c69476520bb4c2a208211a8d3c310a62c4d0affected · git
  • d1e879ec600f9b3bdd253167533959facfefb17b and later · before 13f1786395dbbf3df73337063c798f1266be6151affected · git
  • d1e879ec600f9b3bdd253167533959facfefb17b and later · before 2becb38a3e217ef2b2f42fddd7db7a25905ec291affected · git
  • before 6.15not affected · semver
  • 6.18.34 and later · up to and including 6.18.*not affected · semver
  • 7.0.11 and later · up to and including 7.0.*not affected · semver
  • 7.1 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2026-64173Jul 19, 2026 · tracing: Do not call map->ops->elt_free() if elt_alloc() fails
  22Monitor
• ← EarlierCVE-2026-64174Jul 19, 2026 · wifi: cfg80211: advance loop vars in cfg80211_merge_profile()
  22Monitor
• Later →CVE-2026-64176Jul 19, 2026 · wifi: iwlwifi: mvm: fix driver-set TX rates on old devices
  32Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.