CVE-2026-93283
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1832ed55df45f4145335ad992fb83813cdc58b5d < 5bf498623f8397d45f85f14cd631c5e5a565c2fb | affected |
| Linux | Linux | d48fe8d98171e0fffdeaa8b37ce0a6444bff819b < 20a2b6df91fd782ef2ff551febef594d0b46a9a7 | affected |
| Linux | Linux | 174ae0a3b89e7804e4ea3d31bd83d6e43f39568c < a14dbdf471001dd0601b0c491184990c178a199c | affected |
| Linux | Linux | e49a51a96b531f1b4bcd8d358e645b6c74ef67e6 < d22ad96f1a0c89e0ba66a2facc7430f0923919e3 | affected |
| Linux | Linux | cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0 | affected |
| Linux | Linux | cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 7ef12e1dd06e442eebf370f6e53c41bd056d0f22 | affected |
| Linux | Linux | cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf | affected |
| Linux | Linux | cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 74be657d98a8d684c0475f3cbd450ef2a30ffc73 | affected |
| Linux | Linux | 204beeb509d37669de34560e83bb8abffe7ee63a | affected |
| Linux | Linux | b24cf43d9babf1265a2bb0ae8d198267cef43b83 | affected |
| Linux | Linux | 5.10.201 < 5.10.270 | affected |
| Linux | Linux | 5.15.139 < 5.15.221 | affected |
| Linux | Linux | 6.1.63 < 6.1.188 | affected |
| Linux | Linux | 6.6.2 < 6.6.157 | affected |
| Linux | Linux | 5.4.261 < 5.5 | affected |
| Linux | Linux | 6.5.12 < 6.6 | affected |
| Linux | Linux | 6.7 | affected |
| Linux | Linux | 0 < 6.7 | unaffected |
| Linux | Linux | 5.10.270 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.221 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
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
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.