CVE-2025-71306 (GCVE-0-2025-71306)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:14 – Updated: 2026-05-27 12:14
VLAI
Title
ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()
Summary
In the Linux kernel, the following vulnerability has been resolved: ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec() KASAN reported a stack-out-of-bounds access in ima_appraise_measurement from is_bprm_creds_for_exec: BUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0 Read of size 1 at addr ffffc9000160f940 by task sudo/550 The buggy address belongs to stack of task sudo/550 and is located at offset 24 in frame: ima_appraise_measurement+0x0/0x16a0 This frame has 2 objects: [48, 56) 'file' [80, 148) 'hash' This is caused by using container_of on the *file pointer. This offset calculation is what triggers the stack-out-of-bounds error. In order to fix this, pass in a bprm_is_check boolean which can be set depending on how process_measurement is called. If the caller has a linux_binprm pointer and the function is BPRM_CHECK we can determine is_check and set it then. Otherwise set it to false.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 95b3cdafd7cb74414070893445a9b731793f7b55 , < ab3d16da982a4ebb715d487dbf9dd66e3990d935 (git)
Affected: 95b3cdafd7cb74414070893445a9b731793f7b55 , < 377cae9851e8559e9d8b82a78c1ac0abeb18839c (git)
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Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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        }
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    "cveId": "CVE-2025-71306",
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    "dateReserved": "2026-05-08T13:14:33.088Z",
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:13:18+00:00",
      "cve": "CVE-2025-71306",
      "id": "CVE-2025-71306",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71306.json",
      "version": "3"
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}



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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.

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  • 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.
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