In the Linux kernel, the following vulnerability has been resolved:
uio: uio_pci_generic_sva: fix double free of devm_kzalloc() memory
uio_pci_sva allocates struct uio_pci_sva_dev with devm_kzalloc() in probe(), but then calls kfree(udev) both on the probe() error path (label out_free) and again in remove().
Because devm_kzalloc() allocations are devres-managed and are freed automatically when the device is detached (including after a failing probe() and during driver unbind), the explicit kfree() can lead to a double free.
If probe() fails after devm_kzalloc(), the error path frees udev and devres cleanup will free it again when the core unwinds the partially bound device. On normal driver removal, remove() frees udev and devres will free it again when the device is detached.
This issue was identified by a static analysis tool I developed and confirmed by manual review. Fix by removing the manual kfree() calls and dropping the now-unused label.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-gcp-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-awsUpgrade linux-image-azureUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-raspiUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidiaUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-azure-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-ibmUpgrade linux-image-gcp-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-oracle-7.0Upgrade linux-image-gcpUpgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-ibm-7.0 | Jul 21, 2026 | Jul 20, 2026 |
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