CVE-2026-53297
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk2th percentile — higher than 2% of all known CVEs
Summary
In the Linux kernel, the MANA network driver is vulnerable to a double invocation of mana_remove(). If PM resume fails, mana_probe() calls mana_remove(), which nullifies context pointers. On subsequent driver unbind, a second mana_remove() call dereferences a NULL pointer, causing a kernel panic.
Risk Assessment
The risk is a kernel panic on systems using the MANA network driver when a resume from sleep fails. This can cause system crashes and potential data loss.
Recommendation
Immediately update the Linux kernel to a version containing the fix (commit adding an early return when gdma_context or driver_data is NULL). Monitor security advisories from your Linux distribution.
Original NVD description (English source)
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.