CVE-2026-53297
N/A
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 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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 635096a86edb067d55a1e04b4a918f5c6dac0c51 < a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6 | affected |
| Linux | Linux | 635096a86edb067d55a1e04b4a918f5c6dac0c51 < bbe5c3c570645a4ceb120979d3ee203a1583d775 | affected |
| Linux | Linux | 635096a86edb067d55a1e04b4a918f5c6dac0c51 < 50271d7ec95144d26808025b508f463780517d3c | affected |
| Linux | Linux | 5.16 | affected |
| Linux | Linux | 0 < 5.16 | unaffected |
| Linux | Linux | 6.18.33 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.10 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6
- https://git.kernel.org/stable/c/bbe5c3c570645a4ceb120979d3ee203a1583d775
- https://git.kernel.org/stable/c/50271d7ec95144d26808025b508f463780517d3c
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