firmware: arm_scmi: Free transport channel on IDR failure
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
- —
- 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: Free transport channel on IDR failure If transport channel setup succeeds but the following IDR insertion fails, the error path destroys the transport device and frees the channel info without invoking the transport cleanup callback. Call chan_free() before destroying the device so transport specific resources such as IRQs, mailbox channels and mapped shared memory are released consistently with the normal teardown path.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.157, 6.12.110, 6.18.52, 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
- 2026-10-02 Threatist record created from CVE-2026-93089
- 2026-10-03 Alias added: GHSA-x7f6-mwmw-m629
- 2026-10-06 Affected versions changed · Red Hat
- 2026-10-06 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-30 Fix available: Linux/Linux@10fae57504ee0ef791d145278b339184cd9db45f · CNA
- 2026-10-30 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/10fae57504ee0ef791d145278b339184cd9db45f
- https://git.kernel.org/stable/c/ae7980c9af698d0a7e6790d49249abc71f0fc304
- https://git.kernel.org/stable/c/de0a4c103740cf54cf77370d47e03c9aa51aa5ee
- https://git.kernel.org/stable/c/d7c60c0fe2bd452b56fe07947842d64da61b7290
- https://git.kernel.org/stable/c/fbaebd380caa4e1cec9306ca00231da6518a123f
- https://git.kernel.org/stable/c/d72e7e5f24687c0490aabf317653caffe0447aeb
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- 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
Sources
- CVE-2026-93089 · CVE Program
- CVE-2026-93089 · NVD
- FIRST EPSS
- GHSA-x7f6-mwmw-m629 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93089 · Red Hat security data · CC BY 4.0
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