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VULNERABILITIES

CVE-2026-53010 Details

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2_open during durable reconnect In smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference to the durable file descriptor early during the durable reconnect process. If an error occurs subsequently (eg, ksmbd_iov_pin_rsp fails) or a scavenger accesses the file, it leads to a use-after-free when accessing fp properties (eg fp->create_time). Move the single put to the end of the function below err_out2 so fp stays valid until smb2_open returns.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/1baff47b81f94f9231c91236aa511420d0e266b9 kernel.orgPatch
https://git.kernel.org/stable/c/4db3dcac84c2f14a45ae201efb38de1fb1bfc009 kernel.org
https://git.kernel.org/stable/c/97a0cd55283b4e63fd92804da91c8d9896adcad9 kernel.orgPatch
https://git.kernel.org/stable/c/ce2e164c1c51c3f7813b80f8c926836e896bcbb3 kernel.orgPatch
https://git.kernel.org/stable/c/f0ff7f12398e85b3a11745ff7feab6246f3d75c2 kernel.org

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

ProductVersions
linux linux kernel
>= 6.6.32, < 6.7
>= 6.9, < 6.18.33
>= 6.19, < 7.0.10

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-53010
NVD Published Date:
Jun 24, 2026
NVD Last Modified:
Sep 14, 2026
Source:
kernel.org
CVE-2026-53010 Details - Not Deferred