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Copyright ยฉ 2026 HOL DAO LLC. All rights reserved.

Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-89837

f2fs: fix dentry folio leak in find_in_levelCVE-2026-89837

Answer in brief

CVE-2026-89837 records a Unknown severity vulnerability in f2fs: fix dentry folio leak in find_in_level. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Oct 30, 2026Source checked Oct 31, 2026First seen by HOL Sep 16, 2026Material review Oct 30, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 31, 2026
References
7 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=7ad08a58bf67594057362e45cbddd3e27e53e557 <af9cc316d31371824de8d409260a2ab9759dd51c || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <93a3e6a4c9e726a13a935963e8dc43d181db1527 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <cca7d3e30bf30333314e31bc70b9a739f1342167af9cc316d31371824de8d409260a2ab9759dd51c, aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922, 93a3e6a4c9e726a13a935963e8dc43d181db1527, cca7d3e30bf30333314e31bc70b9a739f1342167
Linux/Linuxgeneric5.11Not reported
Linux/Linuxgeneric>=7ad08a58bf67594057362e45cbddd3e27e53e557 <aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <93a3e6a4c9e726a13a935963e8dc43d181db1527 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <cca7d3e30bf30333314e31bc70b9a739f1342167aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922, 93a3e6a4c9e726a13a935963e8dc43d181db1527, cca7d3e30bf30333314e31bc70b9a739f1342167
Linux/Linuxgeneric>=7ad08a58bf67594057362e45cbddd3e27e53e557 <b6c0e77d950bf80ab357e2b4b9667f4389ed417c || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <af9cc316d31371824de8d409260a2ab9759dd51c || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <93a3e6a4c9e726a13a935963e8dc43d181db1527 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <cca7d3e30bf30333314e31bc70b9a739f1342167b6c0e77d950bf80ab357e2b4b9667f4389ed417c, af9cc316d31371824de8d409260a2ab9759dd51c, aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922, 93a3e6a4c9e726a13a935963e8dc43d181db1527, cca7d3e30bf30333314e31bc70b9a739f1342167
Linux/Linuxgeneric>=7ad08a58bf67594057362e45cbddd3e27e53e557 <d2011b371fcb9247b2ef4ea2d852401a6c82ab88 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <3b8593f7965fcb22672d98b55ae2e9410ea3d9f7 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <b6c0e77d950bf80ab357e2b4b9667f4389ed417c || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <af9cc316d31371824de8d409260a2ab9759dd51c || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <93a3e6a4c9e726a13a935963e8dc43d181db1527 || >=7ad08a58bf67594057362e45cbddd3e27e53e557 <cca7d3e30bf30333314e31bc70b9a739f1342167d2011b371fcb9247b2ef4ea2d852401a6c82ab88, 3b8593f7965fcb22672d98b55ae2e9410ea3d9f7, b6c0e77d950bf80ab357e2b4b9667f4389ed417c, af9cc316d31371824de8d409260a2ab9759dd51c, aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922, 93a3e6a4c9e726a13a935963e8dc43d181db1527, cca7d3e30bf30333314e31bc70b9a739f1342167

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to af9cc316d31371824de8d409260a2ab9759dd51c; Linux/Linux to aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922; Linux/Linux to b6c0e77d950bf80ab357e2b4b9667f4389ed417c; Linux/Linux to d2011b371fcb9247b2ef4ea2d852401a6c82ab88 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix dentry folio leak in find_in_level find_in_level() gets a dentry folio with f2fs_find_data_folio() before calling find_in_block(). If find_in_block() returns an error, the function stores the error in res_folio and breaks out of the loop without dropping the dentry folio. This leaks the folio reference on the find_in_block() error path. Drop the dentry folio before returning the error to the caller.

Quoted source text, attributed separately from HOL analysis.