TI-2025-25298 Aliases CVE-2025-37952 GHSA-5m2x-9h8v-h39x

ksmbd: Fix UAF in __close_file_table_ids

LOW 38CWE-416Published 2025-05-20 · Updated 2026-10-30

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while another thread holds a reference to it. The existing checks on fp->refcount are not sufficient to prevent this. The fix takes ft->lock around the section which removes the file from the file table. This prevents two threads acquiring the same file pointer via __close_file_table_ids, as well as the other functions which retrieve a file from the IDR and which already use this same lock.

Why it matters now

EPSS 0.00372 31st percentileScored 2026-11-07

Fix Fixed Linux (Linux): 6.1.191, 6.6.91, 6.12.29 +2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	5.15 and later	6.1.191, 6.6.91, 6.12.29, 6.14.7, 6.15	Patch available	CNA

Linux VendorLinux Affected 5.15 and later Fixed in 6.1.191, 6.6.91, 6.12.29, 6.14.7, 6.15 Patch available CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	5.15 to before 6.6.91; 6.7 to before 6.12.29; 6.13 to before 6.14.7	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc1::::::	6.15 rc1	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::	6.15 rc2	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::	6.15 rc3	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc4::::::	6.15 rc4	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc5::::::	6.15 rc5	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15 to before 6.6.91; 6.7 to before 6.12.29; 6.13 to before 6.14.7 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* Versions 6.15 rc1 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* Versions 6.15 rc2 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* Versions 6.15 rc3 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:* Versions 6.15 rc4 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:* Versions 6.15 rc5 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.91, 6.12.29, 6.14.7, 6.15

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2025-37952
2026-10-03 Alias added: GHSA-5m2x-9h8v-h39x
2026-10-30 Fix available: Linux/Linux@21100812657965dd95bc305f6076f62012f34cf4, Linux/[email protected] · CNA
2026-10-30 1 new reference · CNA
2026-11-07 Affected versions changed · Red Hat

References

Patch 4

Other 1

https://git.kernel.org/stable/c/21100812657965dd95bc305f6076f62012f34cf4

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TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences