CVE-2025-23147 (GCVE-0-2025-23147)

Vulnerability from cvelistv5 – Published: 2025-05-01 12:55 – Updated: 2026-11-05 20:41
VLAI
Title
i3c: Add NULL pointer check in i3c_master_queue_ibi()
Summary
In the Linux kernel, the following vulnerability has been resolved: i3c: Add NULL pointer check in i3c_master_queue_ibi() The I3C master driver may receive an IBI from a target device that has not been probed yet. In such cases, the master calls `i3c_master_queue_ibi()` to queue an IBI work task, leading to "Unable to handle kernel read from unreadable memory" and resulting in a kernel panic. Typical IBI handling flow: 1. The I3C master scans target devices and probes their respective drivers. 2. The target device driver calls `i3c_device_request_ibi()` to enable IBI and assigns `dev->ibi = ibi`. 3. The I3C master receives an IBI from the target device and calls `i3c_master_queue_ibi()` to queue the target device driver’s IBI handler task. However, since target device events are asynchronous to the I3C probe sequence, step 3 may occur before step 2, causing `dev->ibi` to be `NULL`, leading to a kernel panic. Add a NULL pointer check in `i3c_master_queue_ibi()` to prevent accessing an uninitialized `dev->ibi`, ensuring stability.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 20:39 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 1b54faa5f47fa7c642179744aeff03f0810dc62e (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 09359e7c8751961937cb5fc50220969b0a4e1058 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 3ba402610843d7d15c7f3966a461deeeaff7fba4 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < d83b0c03ef8fbea2f03029a1cc1f5041f0e1d47f (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 6871a676aa534e8f218279672e0445c725f81026 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < e6bba328578feb58c614c11868c259b40484c5fa (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < fe4a4fc179b7898055555a11685915473588392e (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < ff9d61db59bb27d16d3f872bff2620d50856b80c (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < bd496a44f041da9ef3afe14d1d6193d460424e91 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.293 , ≤ 5.4.* (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.24 , ≤ 6.12.* (semver)
Unaffected: 6.13.12 , ≤ 6.13.* (semver)
Unaffected: 6.14.3 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: Add NULL pointer check in i3c_master_queue_ibi()\n\nThe I3C master driver may receive an IBI from a target device that has not\nbeen probed yet. In such cases, the master calls `i3c_master_queue_ibi()`\nto queue an IBI work task, leading to \"Unable to handle kernel read from\nunreadable memory\" and resulting in a kernel panic.\n\nTypical IBI handling flow:\n1. The I3C master scans target devices and probes their respective drivers.\n2. The target device driver calls `i3c_device_request_ibi()` to enable IBI\n   and assigns `dev-\u003eibi = ibi`.\n3. The I3C master receives an IBI from the target device and calls\n   `i3c_master_queue_ibi()` to queue the target device driver\u2019s IBI\n   handler task.\n\nHowever, since target device events are asynchronous to the I3C probe\nsequence, step 3 may occur before step 2, causing `dev-\u003eibi` to be `NULL`,\nleading to a kernel panic.\n\nAdd a NULL pointer check in `i3c_master_queue_ibi()` to prevent accessing\nan uninitialized `dev-\u003eibi`, ensuring stability."
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}



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