{"id":"CVE-2026-43056","title":"net: mana: fix use-after-free in add_adev() error path","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: fix use-after-free in add_adev() error path\n\nIf auxiliary_device_add() fails, add_adev() jumps to add_fail and calls\nauxiliary_device_uninit(adev).\n\nThe auxi…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < d88541ffd56d62a61e77209080001eddd4d69815","Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < 43f5b19fd190fea20d052bc84741b28031d5baa9","Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < 5f4061f8225d18695e5afe9bbf1cb7bd673d7872","Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < e5a75bf026c686b91a7dc6f9c5caf5016745d1fe","Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f","Linux 6.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:14:07.416746Z"},"published":"2026-05-01","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:30.592Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43056","references":[{"url":"https://git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815"},{"url":"https://git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9"},{"url":"https://git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872"},{"url":"https://git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe"},{"url":"https://git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f"}],"tags":["cve.org"],"epss":0.0017,"epssPercentile":0.05948,"ingestedAt":"2026-10-16T17:24:46.679Z","slug":"CVE-2026-43056","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: fix use-after-free in add_adev() error path\n\nIf auxiliary_device_add() fails, add_adev() jumps to add_fail and calls\nauxiliary_device_uninit(adev).\n\nThe auxiliary device has its release callback set to adev_release(),\nwhich frees the containing struct mana_adev. Since adev is embedded in\nstruct mana_adev, the subsequent fall-through to init_fail and access\nto adev->id may result in a use-after-free.\n\nFix this by saving the allocated auxiliary device id in a local\nvariable before calling auxiliary_device_add(), and use that saved id\nin the cleanup path after auxiliary_device_uninit().\n\n## Affected\n\n- `Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < d88541ffd56d62a61e77209080001eddd4d69815`\n- `Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < 43f5b19fd190fea20d052bc84741b28031d5baa9`\n- `Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < 5f4061f8225d18695e5afe9bbf1cb7bd673d7872`\n- `Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < e5a75bf026c686b91a7dc6f9c5caf5016745d1fe`\n- `Linux >= a69839d4327d053b18d8e1b0e7ddeee78db78f4f < c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f`\n- `Linux 6.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}