CVE-2025-38018 (GCVE-0-2025-38018)

Vulnerability from cvelistv5 – Published: 2025-06-18 09:28 – Updated: 2026-08-05 11:58
VLAI
Title
net/tls: fix kernel panic when alloc_page failed
Summary
In the Linux kernel, the following vulnerability has been resolved: net/tls: fix kernel panic when alloc_page failed We cannot set frag_list to NULL pointer when alloc_page failed. It will be used in tls_strp_check_queue_ok when the next time tls_strp_read_sock is called. This is because we don't reset full_len in tls_strp_flush_anchor_copy() so the recv path will try to continue handling the partial record on the next call but we dettached the rcvq from the frag list. Alternative fix would be to reset full_len. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 Call trace: tls_strp_check_rcv+0x128/0x27c tls_strp_data_ready+0x34/0x44 tls_data_ready+0x3c/0x1f0 tcp_data_ready+0x9c/0xe4 tcp_data_queue+0xf6c/0x12d0 tcp_rcv_established+0x52c/0x798
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 8f7f96549bc55e4ef3a6b499bc5011e5de2f46c4 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 406d05da26835943568e61bb751c569efae071d4 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < a11b8c0be6acd0505a58ff40d474bd778b25b93a (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 5f1f833cb388592bb46104463a1ec1b7c41975b6 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 491deb9b8c4ad12fe51d554a69b8165b9ef9429f (git)
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Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.140 , ≤ 6.1.* (semver)
Unaffected: 6.6.92 , ≤ 6.6.* (semver)
Unaffected: 6.12.30 , ≤ 6.12.* (semver)
Unaffected: 6.14.8 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-07-30T09:23:10+00:00",
      "cve": "CVE-2025-38018",
      "id": "CVE-2025-38018",
      "initial_release_date": "2025-06-18T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Local Denial of Service due to NULL pointer dereference in net/tls",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38018.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T00:52:51Z",
      "cve": "CVE-2025-38018",
      "id": "CVE-2025-38018",
      "initial_release_date": "2025-06-19T03:16:12Z",
      "product_status:known_affected": "440",
      "product_status:known_not_affected": "277",
      "product_status:recommended": "407",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38018",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38018.json",
      "version": "37"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.