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CVE-2026-43276 is a use-after-free vulnerability in the Linux kernel MANA network driver’s service rescan PCI handling. During mana_serv_reset(), mana_gd_suspend() invokes mana_gd_cleanup(), which destroys gc->service_wq. If the subsequent mana_gd_resume() fails with -ETIMEDOUT or -EPROTO, execution proceeds through mana_serv_rescan() to PCI device removal. The mana_gd_remove() callback invokes mana_gd_cleanup() again, attempting to destroy the already-freed workqueue and causing a crash. The fix checks whether gc->service_wq is NULL before destruction and clears the pointer afterward.
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A Linux kernel net/mana vulnerability involving a double destroy_workqueue condition on the service rescan PCI path.
A Linux kernel vulnerability in the net: mana driver where cleanup on the service rescan PCI path could destroy an already freed workqueue, leading to a use-after-free/double-destroy condition and crash.
A Linux kernel vulnerability in the net/mana component involving a double destroy_workqueue condition on the service rescan PCI path.
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Cross-references every affected SKU, including bundled OEM variants.
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