CVE-2024-38555: net/mlx5: Discard command completions in internal error

Affected versions

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

• linux linux kernel5.10.20 and later · before 5.10.219
• linux linux kernel5.12 and later · before 5.15.161
• linux linux kernel5.16 and later · before 6.1.93
• linux linux kernel6.2 and later · before 6.6.33
• linux linux kernel6.7 and later · before 6.8.12
• linux linux kernel6.9 and later · before 6.9.3

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

  • 2e5d24b3bf091802c5456dc8f8f6a6be4493c8ca, 5.12affected
  • 27c79b3a9212cf4ba634c157e07d29548181a208 and later · before f6fbb8535e990f844371086ab2c1221f71f993d3affected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before 3cb92b0ad73d3f1734e812054e698d655e9581b0affected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before bf8aaf0ae01c27ae3c06aa8610caf91e50393396affected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before 1337ec94bc5a9eed250e33f5f5c89a28a6bfabdbaffected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before 1d5dce5e92a70274de67a59e1e674c3267f94cd7affected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before 7ac4c69c34240c6de820492c0a28a0bd1494265aaffected · git
  • 51d138c2610a236c1ed0059d034ee4c74f452b86 and later · before db9b31aa9bc56ff0d15b78f7e827d61c4a096e40affected · git
  • 5.10.20 and later · before 5.10.219affected · semver
  • 5.11.3 and later · before 5.12affected · 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-2024-38553Jun 19, 2024 · net: fec: remove .ndo_poll_controller to avoid deadlocks
  22Monitor
• ← EarlierCVE-2024-38554Jun 19, 2024 · ax25: Fix reference count leak issue of net_device
  22Monitor
• Later →CVE-2024-38556Jun 19, 2024 · net/mlx5: Add a timeout to acquire the command queue semaphore
  31Monitor

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.