CVE-2026-93081

CVE CVE-2026-93081EUVD EUVD-2026-82191Published 2026-09-17T16:11:01.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 6.6.90 <6.7; patch: 0; 6.1.138 <6.2; 969d8beaa2e374387bf9aa5602ef84fc50bb48d8; 91ff1e9652fb9beb0174267d6bb38243dff211bb; 5.15.182 <5.16; 2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3; 6.14.6 <6.15; 6.15; 9ca67840c0ddf3f39407339624cef824a4f27599 <6abe8fe36b29ff51d1a42c2f338972883f4751a5; 9ca67840c0ddf3f39407339624cef824a4f27599 <c59b3393df1348a12308aaabd5fbc58ed6b21cf5; patch: 7.3-rc1; 6.12.28 <6.13; patch: 7.2.6; ff4273d47da81b95ed9396110bcbd1b7b7470fe8; 8a8a3547d5c4960da053df49c75bf623827a25da

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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