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In the Linux kernel, the following vulnerability has been resolved:
net: ena: PHC: Check return code before setting timestamp output
ena_phc_gettimex64() is setting the output parameter regardless of whether ena_com_phc_get_timestamp() succeeded or failed.
When ena_com_phc_get_timestamp() returns an error, the timestamp parameter may contain uninitialized stack memory (e.g., when PHC is disabled or in blocked state) or invalid hardware values. Passing these to userspace via the PTP ioctl is both a security issue (information leak) and a correctness bug.
Fix by checking the return code after releasing the lock and only setting the output timestamp on success.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Aug 10, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-azure-fdeUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-azureUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-aws-64kUpgrade linux-image-oracle-64kUpgrade linux-image-gcp-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-raspiUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-gcpUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-azure-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-awsUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-oracle-7.0Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-oracleUpgrade linux-image-nvidiaUpgrade linux-image-ibmUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-aws-64k-7.0 | Jul 21, 2026 | Jul 20, 2026 |
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