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TI-2026-62701 Aliases CVE-2026-93081GHSA-x6gc-qjww-67r2

firmware: arm_scmi: Fix SCMI device destroy lifetimes

Priority LOW 22Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
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Impact type
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Confidentiality · integrity · availability
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Fix status
Fixed

No CVSS vector from any source. Fix status from CNA.

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix SCMI device destroy lifetimes scmi_child_dev_find() drops the reference returned by device_find_child() before returning the scmi_device pointer. A concurrent unregister can then release the device while the destroy path is still using the returned pointer. Make the lookup helper return the device_find_child() reference and keep it until scmi_device_destroy() has finished unregistering the child. Also split device_unregister() in __scmi_device_destroy() so the SCMI bus ID is not made reusable until after device_del() has removed the old scmi_dev.N name from sysfs. This avoids a new SCMI device reusing the same ID while the old device is still registered. The final device release callback is also a possible cleanup path when SCMI children are deleted by driver core recursion rather than __scmi_device_destroy(). Release the SCMI bus ID from a common helper used by destroy, register-failure and final-release paths, and clear scmi_dev->id after freeing it so the final release cannot free the same ID again.

Why it matters now

EPSS 0.00206 10th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +5

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.1.138 to before 6.1.191; 6.6.90 to before 6.6.160; 6.12.28 to before 6.12.114; 5.15.182 to before 5.16; 6.14.6 to before 6.156.1.191, 6.6.160, 6.12.114, 5.16, 6.15Patch availableCNA
LinuxLinux6.15 and later6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3Patch availableCNA
  • Linux VendorLinux Affected 6.1.138 to before 6.1.191; 6.6.90 to before 6.6.160; 6.12.28 to before 6.12.114; 5.15.182 to before 5.16; 6.14.6 to before 6.15 Fixed in 6.1.191, 6.6.160, 6.12.114, 5.16, 6.15 Patch available CNA
  • Linux VendorLinux Affected 6.15 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 5.16, 6.15
  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3

Vendor assessments

Red Hat

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

Not affected: 7 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
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-93081
  2. 2026-10-03 Alias added: GHSA-x6gc-qjww-67r2
  3. 2026-10-16 Fix available: Linux/[email protected], Linux/Linux@a60bc2df2d323cc1342f0cf95563cae266801e20 · CNA
  4. 2026-10-16 1 new reference · CNA
  5. 2026-10-19 Fix available: Linux/[email protected] · CNA
  6. 2026-10-20 Affected versions changed · Red Hat
  7. 2026-10-20 CVSS score added · Red Hat
  8. 2026-10-21 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@916e27f71a80f6d77c48d1a1a5782d6d5ef9017c +1 · CNA
  9. 2026-10-21 2 new references · CNA
  10. 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@afe5c022a180e0ade394d3fffbafc1a701f50993 · CNA
  11. 2026-10-30 1 new reference · CNA
  12. 2026-11-06 Affected versions changed · Red Hat

References

Other 6

  • 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-2021-02452 Incorrect authorization in Ubuntu linux kernel 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
See all 21741 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences