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TI-2024-17565 Aliases CVE-2024-26686GHSA-mgx5-jrhq-g7rg

fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats

Priority LOW 24CWE-667Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 24 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats lock_task_sighand() can trigger a hard lockup. If NR_CPUS threads call do_task_stat() at the same time and the process has NR_THREADS, it will spin with irqs disabled O(NR_CPUS * NR_THREADS) time. Change do_task_stat() to use sig->stats_lock to gather the statistics outside of ->siglock protected section, in the likely case this code will run lockless.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00213 11th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.237, 5.15.181, 6.1.82 +3Red Hat: 8 advisoriesRed Hat: 24 fixed, 3 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
LinuxLinux2.6.12 and later5.10.237, 5.15.181, 6.1.82, 6.6.64, 6.7.6, 6.8Patch availableCNA
  • Linux VendorLinux Affected 2.6.12 and later Fixed in 5.10.237, 5.15.181, 6.1.82, 6.6.64, 6.7.6, 6.8 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 6.1.82; 6.2 to before 6.7.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*6.8 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*6.8 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*6.8 rc3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.1.82; 6.2 to before 6.7.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* Versions 6.8 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* Versions 6.8 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* Versions 6.8 rc3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.237, 5.15.181, 6.1.82, 6.6.64, 6.7.6, 6.8

Red Hat 8 advisories

  • RHSA-2024:10771 Released 2024-12-04 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.47.1.el9_4, libperf-5.14.0-427.47.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.47.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.47.1.el9_4, kernel-64k-devel-5.14.0-427.47.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.47.1.el9_4, kernel-5.14.0-427.47.1.el9_4, kernel-64k-5.14.0-427.47.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.47.1.el9_4, kernel-rt-core-5.14.0-427.47.1.el9_4, kernel-rt-debug-5.14.0-427.47.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.47.1.el9_4, kernel-rt-core-5.14.0-427.47.1.el9_4, kernel-rt-debug-5.14.0-427.47.1.el9_4 +11
  • RHSA-2024:9315 Released 2024-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers-5.14.0-503.11.1.el9_5, kernel-tools-libs-devel-5.14.0-503.11.1.el9_5, libperf-5.14.0-503.11.1.el9_5
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-503.11.1.el9_5, kernel-64k-debug-devel-matched-5.14.0-503.11.1.el9_5, kernel-64k-devel-5.14.0-503.11.1.el9_5 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.4.0-503.11.1.el9_5, kernel-5.14.0-503.11.1.el9_5, kernel-64k-5.14.0-503.11.1.el9_5 +30
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +9
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +11
  • RHSA-2024:8613 Released 2024-10-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.90.1.el9_2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.90.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.90.1.el9_2, kernel-64k-devel-5.14.0-284.90.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.90.1.el9_2, kernel-5.14.0-284.90.1.el9_2, kernel-64k-5.14.0-284.90.1.el9_2 +29
Show 5 more Red Hat advisories
  • RHSA-2024:8614 Released 2024-10-30 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-core-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-debug-5.14.0-284.90.1.rt14.375.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-core-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-debug-5.14.0-284.90.1.rt14.375.el9_2 +11
  • RHSA-2024:6998 Released 2024-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.124.1.el8_6, kernel-4.18.0-372.124.1.el8_6, kernel-abi-stablelists-4.18.0-372.124.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.124.1.el8_6, kernel-4.18.0-372.124.1.el8_6, kernel-abi-stablelists-4.18.0-372.124.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.124.1.el8_6, kernel-4.18.0-372.124.1.el8_6, kernel-abi-stablelists-4.18.0-372.124.1.el8_6 +14
  • RHSA-2024:5255 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.67.1.el8_8
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.67.1.el8_8, kernel-4.18.0-477.67.1.el8_8, kernel-abi-stablelists-4.18.0-477.67.1.el8_8 +19
  • RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
  • RHSA-2024:5102 Released 2024-08-08 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.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 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2024:9315
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:5255
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:8613
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2024:10771
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:9315
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:8613
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2024:10771
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:9315
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2024:6998
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2024:6998
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:5255
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:8613
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2024:10771
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2024:6998
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2024:9315
Red Hat Enterprise Linux Real Time EUS (v.9.2)Fixed RHSA-2024:8614
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2024:10771
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2024:9315
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)Fixed RHSA-2024:8614
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2024:10771
Not affected: 4 products
  • Red Hat CodeReady Linux Builder (v. 9)
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux AppStream EUS (v.9.2)
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-26686
  2. 2026-10-03 Alias added: GHSA-mgx5-jrhq-g7rg

References

Patch 4

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