TI-2025-25995 Aliases CVE-2025-38660 GHSA-c68j-74mr-g84m

[ceph] parse_longname(): strrchr() expects NUL-terminated string

MEDIUM 49Published 2025-08-22 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00405 34th percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.6.157, 6.12.42, 6.15.10 +2Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	6.6 and later	6.6.157, 6.12.42, 6.15.10, 6.16.1, 6.17	Patch available	CNA

Linux VendorLinux Affected 6.6 and later Fixed in 6.6.157, 6.12.42, 6.15.10, 6.16.1, 6.17 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	6.6 to before 6.12.42; 6.13 to before 6.15.10; 6.16 to before 6.16.1	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.6 to before 6.12.42; 6.13 to before 6.15.10; 6.16 to before 6.16.1 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.6.157, 6.12.42, 6.15.10, 6.16.1, 6.17

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred

Not affected: 3 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8

Timeline

2026-10-02 Threatist record created from CVE-2025-38660
2026-10-03 Alias added: GHSA-c68j-74mr-g84m
2026-10-16 CISA SSVC decision points changed

References

Patch 4

Other 1

https://git.kernel.org/stable/c/4b9aee707c4580511983a0998547f3b28514e6a6

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
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

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