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

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Summary

CVECVE-2026-43056
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:52 UTC
Updated2026-05-07 19:02:46 UTC
DescriptionIn 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().

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000120000 probability, percentile 0.017370000 (date 2026-05-05)

Problem Types: CWE-416

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f d88541ffd56d62a61e77209080001eddd4d69815 git Not specified
CNA Linux Linux affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f 43f5b19fd190fea20d052bc84741b28031d5baa9 git Not specified
CNA Linux Linux affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f 5f4061f8225d18695e5afe9bbf1cb7bd673d7872 git Not specified
CNA Linux Linux affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f e5a75bf026c686b91a7dc6f9c5caf5016745d1fe git Not specified
CNA Linux Linux affected a69839d4327d053b18d8e1b0e7ddeee78db78f4f c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f git Not specified
CNA Linux Linux affected 6.2 Not specified
CNA Linux Linux unaffected 6.2 semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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