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TI-2025-15976 Aliases CVE-2025-22026GHSA-xrr8-p4pf-hfwr

nfsd: don't ignore the return code of svc_proc_register()

Priority LOW 24CWE-252Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 38 fixed, 2 without a fix

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

Summary

In the Linux kernel, the following vulnerability has been resolved: nfsd: don't ignore the return code of svc_proc_register() Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later. Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs. svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00206 10th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.259, 5.15.210, 6.1.164 +6Red Hat: 15 advisoriesRed Hat: 38 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.10.226 to before 5.10.259; 5.15.166 to before 5.15.210; 6.1.106 to before 6.1.164; 6.6.47 to before 6.6.125; 6.8.10 to before 6.95.10.259, 5.15.210, 6.1.164, 6.6.125, 6.9Patch availableCNA
LinuxLinux6.9 and later5.10.259, 5.15.210, 6.1.164, 6.6.125, 6.12.24, 6.13.12, 6.14.2, 6.15Patch availableCNA
  • Linux VendorLinux Affected 5.10.226 to before 5.10.259; 5.15.166 to before 5.15.210; 6.1.106 to before 6.1.164; 6.6.47 to before 6.6.125; 6.8.10 to before 6.9 Fixed in 5.10.259, 5.15.210, 6.1.164, 6.6.125, 6.9 Patch available CNA
  • Linux VendorLinux Affected 6.9 and later Fixed in 5.10.259, 5.15.210, 6.1.164, 6.6.125, 6.12.24, 6.13.12, 6.14.2, 6.15 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.259, 5.15.210, 6.1.164, 6.6.125, 6.9
  • Fix · CNA Linux (Linux) Fixed in 5.10.259, 5.15.210, 6.1.164, 6.6.125, 6.12.24, 6.13.12, 6.14.2, 6.15

Red Hat 15 advisories

  • RHSA-2025:22752 Released 2025-12-04 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
  • RHSA-2025:21667 Released 2025-11-18 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.173.1.el8_2, kernel-4.18.0-193.173.1.el8_2, kernel-abi-whitelists-4.18.0-193.173.1.el8_2 +14
  • RHSA-2025:21082 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-devel-3.10.0-1160.142.1.rt56.1294.el7 +4
Show 12 more Red Hat advisories
  • RHSA-2025:21063 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.142.1.el7, kernel-3.10.0-1160.142.1.el7, kernel-abi-whitelists-3.10.0-1160.142.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.142.1.el7, kernel-tools-libs-devel-3.10.0-1160.142.1.el7
  • RHSA-2025:19222 Released 2025-10-29 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +14
  • RHSA-2025:18932 Released 2025-10-22 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.116.1.el8_8, kernel-4.18.0-477.116.1.el8_8, kernel-abi-stablelists-4.18.0-477.116.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.116.1.el8_8, kernel-4.18.0-477.116.1.el8_8, kernel-abi-stablelists-4.18.0-477.116.1.el8_8 +14
  • RHSA-2025:18281 Released 2025-10-20 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.55.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.55.1.el9_6, kernel-64k-devel-5.14.0-570.55.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.55.1.el9_6, kernel-64k-5.14.0-570.55.1.el9_6, kernel-64k-core-5.14.0-570.55.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.55.1.el9_6, libperf-5.14.0-570.55.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.55.1.el9_6, kernel-rt-64k-5.14.0-570.55.1.el9_6, kernel-rt-64k-core-5.14.0-570.55.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.55.1.el9_6, kernel-rt-core-5.14.0-570.55.1.el9_6, kernel-rt-debug-5.14.0-570.55.1.el9_6 +11
  • RHSA-2025:17396 Released 2025-10-07 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.38.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.38.1.el10_0, kernel-64k-devel-6.12.0-55.38.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.38.1.el10_0, kernel-64k-6.12.0-55.38.1.el10_0, kernel-64k-core-6.12.0-55.38.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.38.1.el10_0, libperf-6.12.0-55.38.1.el10_0
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.38.1.el10_0, kernel-rt-64k-6.12.0-55.38.1.el10_0, kernel-rt-64k-core-6.12.0-55.38.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.38.1.el10_0, kernel-rt-core-6.12.0-55.38.1.el10_0, kernel-rt-debug-6.12.0-55.38.1.el10_0 +11
  • RHSA-2025:16919 Released 2025-09-29 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.77.1.el8_10, kernel-4.18.0-553.77.1.el8_10, kernel-abi-stablelists-4.18.0-553.77.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.77.1.el8_10
  • RHSA-2025:16920 Released 2025-09-29 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-core-4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-4.18.0-553.77.1.rt7.418.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-core-4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-4.18.0-553.77.1.rt7.418.el8_10 +7
  • RHSA-2025:14749 Released 2025-08-27 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-core-5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-5.14.0-70.144.1.rt21.216.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-core-5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-5.14.0-70.144.1.rt21.216.el9_0 +7
  • RHSA-2025:14744 Released 2025-08-27 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.144.1.el9_0, kernel-debug-devel-matched-5.14.0-70.144.1.el9_0, kernel-devel-5.14.0-70.144.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.144.1.el9_0, kernel-5.14.0-70.144.1.el9_0, kernel-abi-stablelists-5.14.0-70.144.1.el9_0 +14
  • RHSA-2025:14005 Released 2025-08-18 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.131.1.rt14.416.el9_2, kernel-rt-core-5.14.0-284.131.1.rt14.416.el9_2, kernel-rt-debug-5.14.0-284.131.1.rt14.416.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.131.1.rt14.416.el9_2, kernel-rt-core-5.14.0-284.131.1.rt14.416.el9_2, kernel-rt-debug-5.14.0-284.131.1.rt14.416.el9_2 +11
  • RHSA-2025:14003 Released 2025-08-18 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.131.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.131.1.el9_2, kernel-64k-devel-5.14.0-284.131.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.131.1.el9_2, kernel-5.14.0-284.131.1.el9_2, kernel-64k-5.14.0-284.131.1.el9_2 +29
  • RHSA-2025:13946 Released 2025-08-18 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.83.1.el9_4, libperf-5.14.0-427.83.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.83.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.83.1.el9_4, kernel-64k-devel-5.14.0-427.83.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.83.1.el9_4, kernel-5.14.0-427.83.1.el9_4, kernel-64k-5.14.0-427.83.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.83.1.el9_4, kernel-rt-core-5.14.0-427.83.1.el9_4, kernel-rt-debug-5.14.0-427.83.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.83.1.el9_4, kernel-rt-core-5.14.0-427.83.1.el9_4, kernel-rt-debug-5.14.0-427.83.1.el9_4 +11

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:13946
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:17396
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:18281
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:14744
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:14003
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:13946
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:17396
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:16919
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:18281
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:21667
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:18932
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:14744
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:14003
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:13946
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:18932
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:16919
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:17396
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:18281
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:16920
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:14749
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:16920
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:17396
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:18281
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:14749
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:14005
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:13946
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:17396
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:18281
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:14005
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:13946
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:21082

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-22026
  2. 2026-10-03 Alias added: GHSA-xrr8-p4pf-hfwr

References

Patch 6

Other 2

  • 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

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