CVE-2026-53297 net: mana: Guard mana_remove against double invocation

What is CVE-2026-53297?

CVE-2026-53297 is a medium-severity vulnerability in Linux kernel, published on 26 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-476

Which versions are affected by CVE-2026-53297?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-53297?

Apply the vendor's patch.

Is CVE-2026-53297 being exploited?

There is no known exploitation of CVE-2026-53297 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-91331, BELL-CVE-2026-53297, DEBIAN-CVE-2026-53297, GHSA-43rv-4q7x-r3cg, ROOT-OS-DEBIAN-12-CVE-2026-53297, ROOT-OS-DEBIAN-13-CVE-2026-53297 and 2 more.