TI-2026-24017 Aliases CVE-2026-31459 GHSA-6c8g-q98p-w229

mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure

LOW 24CWE-401Published 2026-04-22 · Updated 2026-05-23

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: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-401.

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer dereference when a privileged user make wrong sequences of control. Fix those. This patch (of 3): When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(), param_ctx is leaked because the early return skips the cleanup at the out label. Destroy param_ctx before returning.

Why it matters now

EPSS 0.00121 1st percentileScored 2026-11-07

Fix Fixed Linux (Linux): 6.18, 6.18.21, 6.19.11 +1

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	6.17.6 to before 6.18	6.18	Patch available	CNA
Linux	Linux	6.18 and later	6.18.21, 6.19.11, 7.0	Patch available	CNA

Linux VendorLinux Affected 6.17.6 to before 6.18 Fixed in 6.18 Patch available CNA
Linux VendorLinux Affected 6.18 and later Fixed in 6.18.21, 6.19.11, 7.0 Patch available CNA

CPE configurations NVD · 13

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	6.18.1 to before 6.18.21; 6.19 to before 6.19.11	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.17.6:::::::*	6.17.6	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:-::::::	6.18	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc3::::::	6.18 rc3	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc4::::::	6.18 rc4	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc5::::::	6.18 rc5	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc6::::::	6.18 rc6	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc7::::::	6.18 rc7	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::	7.0 rc1	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::	7.0 rc2	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.18.1 to before 6.18.21; 6.19 to before 6.19.11 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.17.6:*:*:*:*:*:*:* Versions 6.17.6 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:-:*:*:*:*:*:* Versions 6.18 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:* Versions 6.18 rc3 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:* Versions 6.18 rc4 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:* Versions 6.18 rc5 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:* Versions 6.18 rc6 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.18:rc7:*:*:*:*:*:* Versions 6.18 rc7 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* Versions 7.0 rc1 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* Versions 7.0 rc2 Vulnerable ·Linux

Show 3 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::	7.0 rc3	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::	7.0 rc4	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::	7.0 rc5	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* Versions 7.0 rc3 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* Versions 7.0 rc4 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* Versions 7.0 rc5 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.18
Fix · CNA Linux (Linux) Fixed in 6.18.21, 6.19.11, 7.0

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2026-31459
2026-10-03 Alias added: GHSA-6c8g-q98p-w229

References

Patch 3

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