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TI-2022-25849 Aliases CVE-2022-50367GHSA-4hcm-79j9-x472

fs: fix UAF/GPF bug in nilfs_mdt_destroy

Priority LOW 35CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 33 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00225 13th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.331, 4.14.296, 4.19.262 +6Red Hat: 15 advisoriesRed Hat: 33 fixed, 2 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
LinuxLinux2.6.12 and later4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1, 6.1Patch availableCNA
  • Linux VendorLinux Affected 2.6.12 and later Fixed in 4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1, 6.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 4.9.331; 4.10 to before 4.14.296; 4.15 to before 4.19.262; 4.20 to before 5.4.218; 5.5 to before 5.10.148; 5.11 to before 5.15.73; 5.16 to before 5.19.15; 6.0 to before 6.0.1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.9.331; 4.10 to before 4.14.296; 4.15 to before 4.19.262; 4.20 to before 5.4.218; 5.5 to before 5.10.148; 5.11 to before 5.15.73; 5.16 to before 5.19.15; 6.0 to before 6.0.1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1, 6.1

Red Hat 15 advisories

  • RHSA-2025:23947 Released 2025-12-22 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.144.1.el7, kernel-3.10.0-1160.144.1.el7, kernel-abi-whitelists-3.10.0-1160.144.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.144.1.el7, kernel-tools-libs-devel-3.10.0-1160.144.1.el7
  • RHSA-2025:23960 Released 2025-12-22 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.144.1.rt56.1296.el7, kernel-rt-debug-3.10.0-1160.144.1.rt56.1296.el7, kernel-rt-debug-devel-3.10.0-1160.144.1.rt56.1296.el7 +4
  • RHSA-2025:23445 Released 2025-12-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.178.1.el8_2, kernel-4.18.0-193.178.1.el8_2, kernel-abi-whitelists-4.18.0-193.178.1.el8_2 +14
Show 12 more Red Hat 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-2025:21136 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-2025:21128 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +11
  • RHSA-2025:21112 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.7.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.7.1.el9_7, kernel-64k-devel-5.14.0-611.7.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.7.1.el9_7, kernel-64k-5.14.0-611.7.1.el9_7, kernel-64k-core-5.14.0-611.7.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.7.1.el9_7, libperf-5.14.0-611.7.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.7.1.el9_7, kernel-rt-64k-5.14.0-611.7.1.el9_7, kernel-rt-64k-core-5.14.0-611.7.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.7.1.el9_7, kernel-rt-core-5.14.0-611.7.1.el9_7, kernel-rt-debug-5.14.0-611.7.1.el9_7 +9
  • 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-2025:21084 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
  • RHSA-2025:21083 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.118.1.el8_8, kernel-4.18.0-477.118.1.el8_8, kernel-abi-stablelists-4.18.0-477.118.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.118.1.el8_8, kernel-4.18.0-477.118.1.el8_8, kernel-abi-stablelists-4.18.0-477.118.1.el8_8 +14
  • RHSA-2025:21051 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.146.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.146.1.el9_2, kernel-64k-devel-5.14.0-284.146.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.146.1.el9_2, kernel-5.14.0-284.146.1.el9_2, kernel-64k-5.14.0-284.146.1.el9_2 +29
  • RHSA-2025:19931 Released 2025-11-10 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.83.1.el8_10, kernel-4.18.0-553.83.1.el8_10, kernel-abi-stablelists-4.18.0-553.83.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.83.1.el8_10
  • RHSA-2025:19932 Released 2025-11-10 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-core-4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-4.18.0-553.83.1.rt7.424.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-core-4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-4.18.0-553.83.1.rt7.424.el8_10 +7
  • 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-2025:19409 Released 2025-11-03 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.60.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.60.1.el9_6, kernel-64k-devel-5.14.0-570.60.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.60.1.el9_6, kernel-64k-5.14.0-570.60.1.el9_6, kernel-64k-core-5.14.0-570.60.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.60.1.el9_6, libperf-5.14.0-570.60.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.60.1.el9_6, kernel-rt-64k-5.14.0-570.60.1.el9_6, kernel-rt-64k-core-5.14.0-570.60.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.60.1.el9_6, kernel-rt-core-5.14.0-570.60.1.el9_6, kernel-rt-debug-5.14.0-570.60.1.el9_6 +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-2025:19886
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:19409, RHSA-2025:21112
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:21091
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:21051
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:19931
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:19409, RHSA-2025:21112
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:23445
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:21084
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:21084
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:21083
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:21091
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:21051
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-2025:21084
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:21083
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:19931
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:19409, RHSA-2025:21112
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:19932
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:21136
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:19932
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:19409, RHSA-2025:21112
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-2025:21128
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:19409, RHSA-2025:21112
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:21128
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:19886
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:23947
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:23947
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:23960
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-50367
  2. 2026-10-03 Alias added: GHSA-4hcm-79j9-x472

References

Patch 9

  • 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