CVE-2026-53010

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1baff47b81f94f9231c91236aa511420d0e266b9	Patch
https://git.kernel.org/stable/c/4db3dcac84c2f14a45ae201efb38de1fb1bfc009
https://git.kernel.org/stable/c/97a0cd55283b4e63fd92804da91c8d9896adcad9	Patch
https://git.kernel.org/stable/c/ce2e164c1c51c3f7813b80f8c926836e896bcbb3	Patch
https://git.kernel.org/stable/c/f0ff7f12398e85b3a11745ff7feab6246f3d75c2

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-06-24 17:17

Updated : 2026-09-14 12:17

NVD link : CVE-2026-53010

Mitre link : CVE-2026-53010

CVE.ORG link : CVE-2026-53010

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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