CVE-2024-46738: VMCI: Fix use-after-free when removing resource in vmci_resource_remove()

Affected versions

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

• linux linux kernel3.9 and later · before 4.19.322
• linux linux kernel4.20 and later · before 5.4.284
• linux linux kernel5.5 and later · before 5.10.226
• linux linux kernel5.11 and later · before 5.15.167
• linux linux kernel5.16 and later · before 6.1.110
• linux linux kernel6.2 and later · before 6.6.51
• linux linux kernel6.7 and later · before 6.10.10
• linux linux kernel6.11

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

  • 3.9affected
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before f6365931bf7c07b2b397dbb06a4f6573cc9fae73affected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before b243d52b5f6f59f9d39e69b191fb3d58b94a43b1affected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before 6c563a29857aa8053b67ee141191f69757f27f6eaffected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before ef5f4d0c5ee22d4f873116fec844ff6edaf3fa7daffected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before b9efdf333174468651be40390cbc79c9f55d9cceaffected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before 39e7e593418ccdbd151f2925fa6be1a616d16c96affected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before 00fe5292f081f8d773e572df8e03bf6e1855fe49affected · git
  • bc63dedb7d46a7d690c6b6edf69136b88af06cc6 and later · before 48b9a8dabcc3cf5f961b2ebcd8933bf9204babb7affected · git
  • before 3.9not 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-2024-46736Sep 18, 2024 · smb: client: fix double put of @cfile in smb2_rename_path()
  31Monitor
• ← EarlierCVE-2024-46737Sep 18, 2024 · nvmet-tcp: fix kernel crash if commands allocation fails
  22Monitor
• Later →CVE-2024-46739Sep 18, 2024 · uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind
  22Monitor

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.