CVE-2026-93283i3c: master: Fix device_register() error path
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix device_register() error path When device_register() fails in i3c_master_register_new_i3c_devs(), put_device() is called to drop the reference taken by device_register(). That drops the last reference, so the device's release callback i3c_device_release() runs and frees the i3c_device. Two problems follow from that: i3c_device_release() does WARN_ON(i3cdev->desc), so it warns because desc->dev->desc still points back at the descriptor. Clear it before calling put_device(). After put_device() frees the i3c_device, desc->dev is left pointing at freed memory, so clear desc->dev as well. That prevents, for example, i3c_master_unregister_i3c_devs() seeing desc->dev as non-NULL and dereferencing it.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 1832ed55df45f4145335ad992fb83813cdc58b5d builds before 5bf498623f8397d45f85f14cd631c5e5a565c2fb; from d48fe8d98171e0fffdeaa8b37ce0a6444bff819b before 20a2b6df91fd782ef2ff551febef594d0b46a9a7; from 174ae0a3b89e7804e4ea3d31bd83d6e43f39568c before a14dbdf471001dd0601b0c491184990c178a199c; from e49a51a96b531f1b4bcd8d358e645b6c74ef67e6 before d22ad96f1a0c89e0ba66a2facc7430f0923919e3; from cab63f64887616e3c4e31cfd8103320be6ebc8d3 before 7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0; from cab63f64887616e3c4e31cfd8103320be6ebc8d3 before 7ef12e1dd06e442eebf370f6e53c41bd056d0f22; from cab63f64887616e3c4e31cfd8103320be6ebc8d3 before 6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf; from cab63f64887616e3c4e31cfd8103320be6ebc8d3 before 74be657d98a8d684c0475f3cbd450ef2a30ffc73; and 8 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/5bf498623f8397d45f85f14cd631c5e5a565c2fb
- https://git.kernel.org/stable/c/20a2b6df91fd782ef2ff551febef594d0b46a9a7
- https://git.kernel.org/stable/c/a14dbdf471001dd0601b0c491184990c178a199c
- https://git.kernel.org/stable/c/d22ad96f1a0c89e0ba66a2facc7430f0923919e3
- https://git.kernel.org/stable/c/7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0
- https://git.kernel.org/stable/c/7ef12e1dd06e442eebf370f6e53c41bd056d0f22
- https://git.kernel.org/stable/c/6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf
- https://git.kernel.org/stable/c/74be657d98a8d684c0475f3cbd450ef2a30ffc73
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.