CVE-2026-46288 (GCVE-0-2026-46288)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:41 – Updated: 2026-06-14 18:06
VLAI
Title
of: unittest: fix use-after-free in of_unittest_changeset()
Summary
In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After that, the code still uses 'parent' to check for the presence of a property and to read a string property, leading to a use-after-free. Fix this by moving the of_node_put() call after the last access to 'parent', avoiding the UAF.
Severity
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1c668ea65506e67ce2eae07b69bb09fcdd86e309 , < 37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1 (git)
Affected: 1c668ea65506e67ce2eae07b69bb09fcdd86e309 , < 7f0f0926f3010b10cff5e93446258f971e42f2fd (git)
Affected: 1c668ea65506e67ce2eae07b69bb09fcdd86e309 , < 6fdad20b7975bdc32e85b45f8f7c640f6687b81f (git)
Affected: 1c668ea65506e67ce2eae07b69bb09fcdd86e309 , < faecdd423c27f0d6090156a435ba9dbbac0eaddb (git)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: unittest: fix use-after-free in of_unittest_changeset()\n\nThe variable \u0027parent\u0027 is assigned the value of \u0027nchangeset\u0027 earlier in the\nfunction, meaning both point to the same struct device_node. The call to\nof_node_put(nchangeset) can decrement the reference count to zero and\nfree the node if there are no other holders. After that, the code still\nuses \u0027parent\u0027 to check for the presence of a property and to read a\nstring property, leading to a use-after-free.\n\nFix this by moving the of_node_put() call after the last access to\n\u0027parent\u0027, avoiding the UAF."
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    "dateReserved": "2026-05-13T15:03:33.110Z",
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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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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.
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  • 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.