{"id":"CVE-2026-93283","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix device_register() error path\n\nWhen device_register() fails in i3c_master_register_new_i3c_devs(),\nput_device() is called to drop the reference taken by…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix device_register() error path\n\nWhen device_register() fails in i3c_master_register_new_i3c_devs(),\nput_device() is called to drop the reference taken by…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1832ed55df45f4145335ad992fb83813cdc58b5d < 5bf498623f8397d45f85f14cd631c5e5a565c2fb","Linux >= d48fe8d98171e0fffdeaa8b37ce0a6444bff819b < 20a2b6df91fd782ef2ff551febef594d0b46a9a7","Linux >= 174ae0a3b89e7804e4ea3d31bd83d6e43f39568c < a14dbdf471001dd0601b0c491184990c178a199c","Linux >= e49a51a96b531f1b4bcd8d358e645b6c74ef67e6 < d22ad96f1a0c89e0ba66a2facc7430f0923919e3","Linux >= cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0","Linux >= cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 7ef12e1dd06e442eebf370f6e53c41bd056d0f22","Linux >= cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf","Linux >= cab63f64887616e3c4e31cfd8103320be6ebc8d3 < 74be657d98a8d684c0475f3cbd450ef2a30ffc73","Linux 204beeb509d37669de34560e83bb8abffe7ee63a","Linux b24cf43d9babf1265a2bb0ae8d198267cef43b83","Linux >= 5.10.201 < 5.10.270","Linux >= 5.15.139 < 5.15.221","Linux >= 6.1.63 < 6.1.188","Linux >= 6.6.2 < 6.6.157","Linux >= 5.4.261 < 5.5","Linux >= 6.5.12 < 6.6","Linux 6.7"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T16:17:25.690","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93283","references":[{"url":"https://git.kernel.org/stable/c/20a2b6df91fd782ef2ff551febef594d0b46a9a7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5bf498623f8397d45f85f14cd631c5e5a565c2fb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/74be657d98a8d684c0475f3cbd450ef2a30ffc73","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7ef12e1dd06e442eebf370f6e53c41bd056d0f22","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a14dbdf471001dd0601b0c491184990c178a199c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d22ad96f1a0c89e0ba66a2facc7430f0923919e3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T16:47:15.843Z","slug":"CVE-2026-93283","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix device_register() error path\n\nWhen device_register() fails in i3c_master_register_new_i3c_devs(),\nput_device() is called to drop the reference taken by\ndevice_register().  That drops the last reference, so the device's\nrelease callback i3c_device_release() runs and frees the i3c_device.\n\nTwo problems follow from that:\n\ni3c_device_release() does WARN_ON(i3cdev->desc), so it warns because\ndesc->dev->desc still points back at the descriptor.  Clear it before\ncalling put_device().\n\nAfter put_device() frees the i3c_device, desc->dev is left pointing at\nfreed memory, so clear desc->dev as well.  That prevents, for example,\ni3c_master_unregister_i3c_devs() seeing desc->dev as non-NULL and\ndereferencing it.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}