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TI-2025-26406 Aliases CVE-2025-39730GHSA-frvj-f982-mfmx

NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()

Priority LOW 35Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 35 fixed, 1 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: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.

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): 5.4.297, 5.10.241, 5.15.190 +6Red Hat: 14 advisoriesRed Hat: 35 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.13 and later5.4.297, 5.10.241, 5.15.190, 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1, 6.17Patch availableCNA
  • Linux VendorLinux Affected 4.13 and later Fixed in 5.4.297, 5.10.241, 5.15.190, 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1, 6.17 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.13 to before 5.4.297; 5.5 to before 5.10.241; 5.11 to before 5.15.190; 5.16 to before 6.1.148; 6.2 to before 6.6.102; 6.7 to before 6.12.42; 6.13 to before 6.15.10; 6.16 to before 6.16.1VulnerableLinux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.13 to before 5.4.297; 5.5 to before 5.10.241; 5.11 to before 5.15.190; 5.16 to before 6.1.148; 6.2 to before 6.6.102; 6.7 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:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.4.297, 5.10.241, 5.15.190, 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1, 6.17

Red Hat 14 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-2025:22124 Released 2025-11-25 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-5.14.0-284.148.1.rt14.433.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-5.14.0-284.148.1.rt14.433.el9_2 +11
  • RHSA-2025:22095 Released 2025-11-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.148.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.148.1.el9_2, kernel-64k-devel-5.14.0-284.148.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.148.1.el9_2, kernel-5.14.0-284.148.1.el9_2, kernel-64k-5.14.0-284.148.1.el9_2 +29
Show 11 more Red Hat advisories
  • RHSA-2025:21931 Released 2025-11-24 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.13.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.13.1.el10_1, kernel-64k-devel-6.12.0-124.13.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.13.1.el10_1, kernel-64k-6.12.0-124.13.1.el10_1, kernel-64k-core-6.12.0-124.13.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.13.1.el10_1, libperf-6.12.0-124.13.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.13.1.el10_1, kernel-rt-64k-6.12.0-124.13.1.el10_1, kernel-rt-64k-core-6.12.0-124.13.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.13.1.el10_1, kernel-rt-core-6.12.0-124.13.1.el10_1, kernel-rt-debug-6.12.0-124.13.1.el10_1 +9
  • 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-2025:21136 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-5.14.0-70.153.1.rt21.225.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-5.14.0-70.153.1.rt21.225.el9_0 +7
  • RHSA-2025:21091 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.153.1.el9_0, kernel-debug-devel-matched-5.14.0-70.153.1.el9_0, kernel-devel-5.14.0-70.153.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.153.1.el9_0, kernel-5.14.0-70.153.1.el9_0, kernel-abi-stablelists-5.14.0-70.153.1.el9_0 +14
  • RHSA-2025:19886 Released 2025-11-06 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.97.1.el9_4, libperf-5.14.0-427.97.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.97.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.97.1.el9_4, kernel-64k-devel-5.14.0-427.97.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.97.1.el9_4, kernel-5.14.0-427.97.1.el9_4, kernel-64k-5.14.0-427.97.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.97.1.el9_4, kernel-rt-core-5.14.0-427.97.1.el9_4, kernel-rt-debug-5.14.0-427.97.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.97.1.el9_4, kernel-rt-core-5.14.0-427.97.1.el9_4, kernel-rt-debug-5.14.0-427.97.1.el9_4 +11
  • 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-2025:19105 Released 2025-10-27 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.58.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.58.1.el9_6, kernel-64k-devel-5.14.0-570.58.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.58.1.el9_6, kernel-64k-5.14.0-570.58.1.el9_6, kernel-64k-core-5.14.0-570.58.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.58.1.el9_6, libperf-5.14.0-570.58.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.58.1.el9_6, kernel-rt-64k-5.14.0-570.58.1.el9_6, kernel-rt-64k-core-5.14.0-570.58.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.58.1.el9_6, kernel-rt-core-5.14.0-570.58.1.el9_6, kernel-rt-debug-5.14.0-570.58.1.el9_6 +11
  • RHSA-2025:19106 Released 2025-10-27 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.41.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.41.1.el10_0, kernel-64k-devel-6.12.0-55.41.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.41.1.el10_0, kernel-64k-6.12.0-55.41.1.el10_0, kernel-64k-core-6.12.0-55.41.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.41.1.el10_0, libperf-6.12.0-55.41.1.el10_0
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.41.1.el10_0, kernel-rt-64k-6.12.0-55.41.1.el10_0, kernel-rt-64k-core-6.12.0-55.41.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.41.1.el10_0, kernel-rt-core-6.12.0-55.41.1.el10_0, kernel-rt-debug-6.12.0-55.41.1.el10_0 +11
  • 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-2025:17397 Released 2025-10-06 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.78.1.el8_10, kernel-4.18.0-553.78.1.el8_10, kernel-abi-stablelists-4.18.0-553.78.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.78.1.el8_10
  • RHSA-2025:17398 Released 2025-10-06 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.78.1.rt7.419.el8_10, kernel-rt-core-4.18.0-553.78.1.rt7.419.el8_10, kernel-rt-debug-4.18.0-553.78.1.rt7.419.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.78.1.rt7.419.el8_10, kernel-rt-core-4.18.0-553.78.1.rt7.419.el8_10, kernel-rt-debug-4.18.0-553.78.1.rt7.419.el8_10 +7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:19106, RHSA-2025:21931
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:19105
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:21091
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:22095
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:19106, RHSA-2025:21931
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:17397
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:19105
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-2025:21091
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:22095
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:19886
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-2025:17397
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:19106, RHSA-2025:21931
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:19105
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:17398
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:21136
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:17398
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:19106, RHSA-2025:21931
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:19105
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:21136
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:22124
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:19106, RHSA-2025:21931
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:19105
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:22124
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:19886
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-39730
  2. 2026-10-03 Alias added: GHSA-frvj-f982-mfmx

References

Patch 9

Advisory 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