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CVE-2026-43056

net: mana: fix use-after-free in add_adev() error path PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev). The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free. Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a69839d4327d053b18d8e1b0e7ddeee78db78f4f before d88541ffd56d62a61e77209080001eddd4d69815; affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f before 43f5b19fd190fea20d052bc84741b28031d5baa9; affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f before 5f4061f8225d18695e5afe9bbf1cb7bd673d7872; affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f before e5a75bf026c686b91a7dc6f9c5caf5016745d1fe; affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f before c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f
Linux / Linuxaffected 6.2; unaffected 0 before 6.2; unaffected 6.6.134 through 6.6.*; unaffected 6.12.81 through 6.12.*; unaffected 6.18.22 through 6.18.*; unaffected 6.19.12 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.