CVE-2026-43394

MEDIUM EPSS 2.3%
Published May 8, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit(). nfsd_nl_listener_set_doit() uses get_current_cred() without put_cred(). As we can see from other callers, svc_xprt_create_from_sa() does not require the extra refcount. nfsd_nl_listener_set_doit() is always in the process context, sendmsg(), and current->cred does not go away. Let's use current_cred() in nfsd_nl_listener_set_doit().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.10  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.19
linuxlinux_kernel*≥6.19  –  <6.19.9
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c
    Patch