Read the docs
TI-2025-42274 Aliases CVE-2025-68806GHSA-4wfq-6xp5-vp47

ksmbd: fix buffer validation by including null terminator size in EA length

Priority LOW 33Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

Why it matters now

EPSS 0.00447 39th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.1.160, 5.16, 6.5 +5

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.1.52 to before 6.1.160; 5.15.131 to before 5.16; 6.4.15 to before 6.5; 6.5.2 to before 6.66.1.160, 5.16, 6.5, 6.6Patch availableCNA
LinuxLinux6.6 and later6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19Patch availableCNA
  • Linux VendorLinux Affected 6.1.52 to before 6.1.160; 5.15.131 to before 5.16; 6.4.15 to before 6.5; 6.5.2 to before 6.6 Fixed in 6.1.160, 5.16, 6.5, 6.6 Patch available CNA
  • Linux VendorLinux Affected 6.6 and later Fixed in 6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.160, 5.16, 6.5, 6.6
  • Fix · CNA Linux (Linux) Fixed in 6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19

Vendor assessments

Red Hat

Red Hat rating: Important. 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

  1. 2026-10-02 Threatist record created from CVE-2025-68806
  2. 2026-10-03 Alias added: GHSA-4wfq-6xp5-vp47

References

Other 5

  • 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-2021-02452 Incorrect authorization in Ubuntu linux kernel 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
See all 21741 →

Sources

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