CVE-2026-89837: Linux vulnerability

CVE-2026-89837: f2fs: fix dentry folio leak in find_in_level

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 21, 2026, 12:49 UTC (UTC+00:00)

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 16, 2026, 10:31 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

0ADP providers

6Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Sep 11, 2026, 19:38 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
Sep 16, 2026, 10:31 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 21, 2026, 12:49 UTC (UTC+00:00)

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/b6c0e77d950bf80ab357e2b4b9667f4389ed417cCVE reference, Linux
https://git.kernel.org/stable/c/af9cc316d31371824de8d409260a2ab9759dd51cCVE reference, Linux
https://git.kernel.org/stable/c/aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922CVE reference, Linux
https://git.kernel.org/stable/c/93a3e6a4c9e726a13a935963e8dc43d181db1527CVE reference, Linux
https://git.kernel.org/stable/c/cca7d3e30bf30333314e31bc70b9a739f1342167CVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux7ad08a58bf67594057362e45cbddd3e27e53e557, 7ad08a58bf67594057362e45cbddd3e27e53e557, 7ad08a58bf67594057362e45cbddd3e27e53e557, 7ad08a58bf67594057362e45cbddd3e27e53e557, 7ad08a58bf67594057362e45cbddd3e27e53e557unaffected

LinuxLinux5.11, 0, 6.6.160, 6.12.112, 6.18.51, 7.2.5, 7.3affected

Weakness

CWE details

No CWE listed

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