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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
c8efcc786146a951091588e5fa7e3c754850cb3c affected < ce2e164c1c51c3f7813b80f8c926836e896bcbb3
c8efcc786146a951091588e5fa7e3c754850cb3c affected < 97a0cd55283b4e63fd92804da91c8d9896adcad9
c8efcc786146a951091588e5fa7e3c754850cb3c affected < 1baff47b81f94f9231c91236aa511420d0e266b9
8df4bcdb0a4232192b2445256c39b787d58ef14d affected —
6.6.32 affected < 6.7
Linux Linux affected
Version Status Constraints
6.9 affected —
0 unaffected < 6.9
6.18.33 unaffected ≤ 6.18.*
7.0.10 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/1baff47b81f94f9231c91236aa511420d0e266b9 cve-icon
https://git.kernel.org/stable/c/97a0cd55283b4e63fd92804da91c8d9896adcad9 cve-icon
https://git.kernel.org/stable/c/ce2e164c1c51c3f7813b80f8c926836e896bcbb3 cve-icon
History

Wed, 24 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Wed, 24 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
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.
Title ksmbd: fix use-after-free in smb2_open during durable reconnect
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-24T16:29:21.211Z

Reserved: 2026-06-09T07:44:35.378Z

Link: CVE-2026-53010

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-24T20:30:04Z

Weaknesses