CVE-2025-38653: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al

Affected versions

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

• debian debian linux11.0
• linux linux kernel6.0 and later · before 6.1.148
• linux linux kernel6.2 and later · before 6.6.102
• linux linux kernel6.7 and later · before 6.12.42
• linux linux kernel6.13 and later · before 6.15.10
• linux linux kernel6.16 and later · before 6.16.1

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

  • 6.0affected
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before c35b0feb80b48720dfbbf4e33759c7be3faaebb6affected · git
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before 33c778ea0bd0fa62ff590497e72562ff90f82b13affected · git
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before fc1072d934f687e1221d685cf1a49a5068318f34affected · git
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before d136502e04d8853a9aecb335d07bbefd7a1519a8affected · git
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before 1fccbfbae1dd36198dc47feac696563244ad81d3affected · git
  • 3f61631d47f115b83c935d0039f95cb68b0c8ab7 and later · before ff7ec8dc1b646296f8d94c39339e8d3833d16c05affected · git
  • before 6.0not affected · semver
  • 6.1.148 and later · up to and including 6.1.*not affected · semver
  • 6.6.102 and later · up to and including 6.6.*not 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-2025-38640Aug 22, 2025 · bpf: Disable migration in nf_hook_run_bpf().
  22Monitor
• ← EarlierCVE-2025-38643Aug 22, 2025 · wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()
  22Monitor
• Later →CVE-2025-38656Aug 22, 2025 · wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start()
  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.