CVE-2026-53333 (GCVE-0-2026-53333)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-01 13:32
VLAI
Title
mm/mincore: handle non-swap entries before !CONFIG_SWAP guard
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIG_SWAP guard mincore_swap() also fields migration/hwpoison entries (and shmem swapin-error entries), which can exist on !CONFIG_SWAP builds when CONFIG_MIGRATION or CONFIG_MEMORY_FAILURE is enabled. The !IS_ENABLED(CONFIG_SWAP) guard ran before the non-swap-entry early return, so mincore_pte_range() can spuriously WARN and report these pages nonresident on !CONFIG_SWAP kernels. Move the guard below the non-swap-entry check so only true swap entries trip the WARN, and migration/hwpoison entries take the existing "uptodate / non-shmem" path.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1f2052755c152940c336918bd73d13d5468f548b , < a8f91ddf67f669f547bb9fb559738da6f8ee2cf3 (git)
Affected: 1f2052755c152940c336918bd73d13d5468f548b , < 3481d4372ae34243f7025925314385b852c50f7e (git)
Affected: 1f2052755c152940c336918bd73d13d5468f548b , < 0c25b8734367574e21aeb8468c2e522713134da7 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 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\nmm/mincore: handle non-swap entries before !CONFIG_SWAP guard\n\nmincore_swap() also fields migration/hwpoison entries (and shmem\nswapin-error entries), which can exist on !CONFIG_SWAP builds when\nCONFIG_MIGRATION or CONFIG_MEMORY_FAILURE is enabled.  The\n!IS_ENABLED(CONFIG_SWAP) guard ran before the non-swap-entry early return,\nso mincore_pte_range() can spuriously WARN and report these pages\nnonresident on !CONFIG_SWAP kernels.\n\nMove the guard below the non-swap-entry check so only true swap entries\ntrip the WARN, and migration/hwpoison entries take the existing \"uptodate\n/ non-shmem\" path."
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        "dateUpdated": "2026-07-01T13:32:16.852Z",
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        "shortName": "Linux"
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    "dateReserved": "2026-06-09T07:44:35.398Z",
    "dateUpdated": "2026-07-01T13:32:16.852Z",
    "state": "PUBLISHED"
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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.

Sightings

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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.
  • 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.