CVE-2026-64113: ixgbevf: fix use-after-free in VEPA multicast source pruning

Affected versions

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

• linux linux kernel3.19 and later · before 5.10.258
• linux linux kernel5.11 and later · before 5.15.209
• linux linux kernel5.16 and later · before 6.1.175
• linux linux kernel6.2 and later · before 6.6.142
• linux linux kernel6.7 and later · before 6.12.92
• linux linux kernel6.13 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

  • 3.19affected
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before 3d931ac62411a7e43b85dba5fe45e1a4a91bd5cbaffected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before 6ef30384a50a50e4a484cddf341bc27de31aa3deaffected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before 55b3e91d62b2f7a24109b2d7c9f4c66d2e3b1ec1affected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before add70e2682c0ad3be2a5810bcf1bc13963ba4df9affected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before a244395d8c563ed1bb26c3ef708db6aeeaa08084affected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before dfef79e09ed2f5df975c98547f97f5d7f8982a24affected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before e8768bcbe5cd30c4ea36a22022c9ffaa66903693affected · git
  • bad17234ba702a50aeec50ab04724ee58af89607 and later · before 5d49b568c188dc77199d8d2b959c91da8cc27cf1affected · git
  • before 3.19not affected · semver

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-2026-64109Jul 19, 2026 · af_unix: Fix UAF read of tail->len in unix_stream_data_wait()
  35Monitor
• ← EarlierCVE-2026-64112Jul 19, 2026 · rbd: eliminate a race in lock_dwork draining on unmap
  31Monitor
• Later →CVE-2026-64114Jul 19, 2026 · ipv4: raw: reject IP_HDRINCL packets with ihl < 5
  31Monitor

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

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

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

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.