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CVE-2026-72177 (GCVE-0-2026-72177)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-17 05:09
VLAI
Title
mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs() Patch series "mm/damon/sysfs-schemes: fix wrong directories put orders in error paths". Error paths of damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions put references to directories in wrong orders. As a result, uninitialized memory dereference and/or memory leak can happen. Fix those. This patch (of 2): In access_pattern_add_dirs(), error handling path puts references starting from setup failed directories. If the failure happpened from the initial allication in the setup functions, uninitialized memory dereference happen. The allocation failures will not commonly happen, but the consequence is quite bad. Fix the wrong reference put orders. The issue was discovered [1] by Sashiko.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < 0710cc97962ca3bcabaa15ce7fead300faf726cd (git)
Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < a8c0592a80e954825f2ba29e7f32893f1df762f2 (git)
Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < e03442b0c48bdb034f5b7cf9f3b76d8025576071 (git)
Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < f18c561eb9c51f1ba3adb6117926a98a66599848 (git)
Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < ee59df7a886a35113f309e3eb791060c46f79bb1 (git)
Affected: 7e84b1f8212a038ebeee06de56db7181148fa0cd , < d58fdbe37a829fd2e5803dd4e5a72992dd8c5368 (git)
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Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-18T15:20:21+00:00",
      "cve": "CVE-2026-72177",
      "id": "CVE-2026-72177",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72177.json",
      "version": "3"
    }
  }
}



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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.