CVE-2025-22004: net: atm: fix use after free in lec_send()

Affected versions

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

• linux linux kernel2.6.12 and later · before 6.1.132
• linux linux kernel6.2 and later · before 6.6.85
• linux linux kernel6.7 and later · before 6.12.21
• linux linux kernel6.13 and later · before 6.13.9
• linux linux kernel6.14

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

  • 2.6.12affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 50e288097c2c6e5f374ae079394436fc29d1e88eaffected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 8cd90c7db08f32829bfa1b5b2b11fbc542afbab7affected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 82d9084a97892de1ee4881eb5c17911fcd9be6f6affected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 51e8be9578a2e74f9983d8fd8de8cafed191f30caffected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 9566f6ee13b17a15d0a47667ad1b1893c539f730affected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 326223182e4703cde99fdbd36d07d0b3de9980fbaffected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before f3271f7548385e0096739965961c7cbf7e6b4762affected · git
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before f3009d0d6ab78053117f8857b921a8237f4d17b3affected · git
  • before 2.6.12not 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-2025-22002Apr 3, 2025 · netfs: Call `invalidate_cache` only if implemented
  22Monitor
• ← EarlierCVE-2025-22003Apr 3, 2025 · can: ucan: fix out of bound read in strscpy() source
  22Monitor
• Later →CVE-2025-22006Apr 3, 2025 · net: ethernet: ti: am65-cpsw: Fix NAPI registration sequence
  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.