---
id: CVE-2026-53297
title: 'net: mana: Guard mana_remove against double invocation'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: mana: Guard mana_remove against double invocation

  If PM resume fails (e.g., mana_attach() returns an error), mana_probe()
  calls mana_remove(), which tears down th…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 <
    793bf1f4e469c51d0e39199823da5e1de85a2741
  - >-
    Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 <
    8ee85b75a72216c857c39457f6595709c4c9f856
  - >-
    Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 <
    a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6
  - >-
    Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 <
    bbe5c3c570645a4ceb120979d3ee203a1583d775
  - >-
    Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 <
    50271d7ec95144d26808025b508f463780517d3c
  - Linux 5.16
published: '2026-06-26'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T12:42:28.350Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-53297'
references:
  - url: 'https://git.kernel.org/stable/c/793bf1f4e469c51d0e39199823da5e1de85a2741'
  - url: 'https://git.kernel.org/stable/c/8ee85b75a72216c857c39457f6595709c4c9f856'
  - url: 'https://git.kernel.org/stable/c/a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6'
  - url: 'https://git.kernel.org/stable/c/bbe5c3c570645a4ceb120979d3ee203a1583d775'
  - url: 'https://git.kernel.org/stable/c/50271d7ec95144d26808025b508f463780517d3c'
tags:
  - cve.org
epss: 0.0016
epssPercentile: 0.04797
ingestedAt: '2026-10-21T12:48:53.617Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

net: mana: Guard mana_remove against double invocation

If PM resume fails (e.g., mana_attach() returns an error), mana_probe()
calls mana_remove(), which tears down the device and sets
gd->gdma_context = NULL and gd->driver_data = NULL.

However, a failed resume callback does not automatically unbind the
driver. When the device is eventually unbound, mana_remove() is invoked
a second time. Without a NULL check, it dereferences gc->dev with
gc == NULL, causing a kernel panic.

Add an early return if gdma_context or driver_data is NULL so the second
invocation is harmless. Move the dev = gc->dev assignment after the
guard so it cannot dereference NULL.

## Affected

- `Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 < 793bf1f4e469c51d0e39199823da5e1de85a2741`
- `Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 < 8ee85b75a72216c857c39457f6595709c4c9f856`
- `Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 < a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6`
- `Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 < bbe5c3c570645a4ceb120979d3ee203a1583d775`
- `Linux >= 635096a86edb067d55a1e04b4a918f5c6dac0c51 < 50271d7ec95144d26808025b508f463780517d3c`
- `Linux 5.16`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.