Read the docs
TI-2019-15141 Aliases CVE-2019-20934GHSA-hm82-rjqc-48fq

An issue was discovered in the Linux kernel before 5.2.6.

Priority LOW 24CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · None · High
Fix status
Partial Red Hat: 15 fixed, 3 without a fix

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

Summary

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

Why it matters now

EPSS 0.00317 24th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 15 fixed, 3 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.19 to before 4.19.64; 5.2 – 5.2.17VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.3:rc1:*:*:*:*:*:*5.3 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.19 to before 4.19.64; 5.2 – 5.2.17 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.3:rc1:*:*:*:*:*:* Versions 5.3 rc1 Vulnerable ·Linux

Remediation

Red Hat 3 advisories

  • RHSA-2021:3987 Released 2021-10-26 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) bpftool-3.10.0-1062.59.1.el7, kernel-3.10.0-1062.59.1.el7, kernel-abi-whitelists-3.10.0-1062.59.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.7) bpftool-3.10.0-1062.59.1.el7, kernel-3.10.0-1062.59.1.el7, kernel-abi-whitelists-3.10.0-1062.59.1.el7 +9
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.59.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.7) kernel-debug-devel-3.10.0-1062.59.1.el7, kernel-tools-libs-devel-3.10.0-1062.59.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.59.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.7) bpftool-3.10.0-1062.59.1.el7, kernel-3.10.0-1062.59.1.el7, kernel-abi-whitelists-3.10.0-1062.59.1.el7 +8
  • RHSA-2021:2725 Released 2021-07-21 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.36.2.el7, kernel-tools-libs-devel-3.10.0-1160.36.2.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
  • RHSA-2021:2726 Released 2021-07-21 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-devel-3.10.0-1160.36.2.rt56.1179.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-devel-3.10.0-1160.36.2.rt56.1179.el7 +7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Server E4S (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Server Optional E4S (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Server Optional TUS (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Server TUS (v. 7.7)Fixed RHSA-2021:3987
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2021:2725
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2021:2726
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2021:2726
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20934
  2. 2026-10-03 Alias added: GHSA-hm82-rjqc-48fq

References

Patch 1

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