In the Linux kernel, the following vulnerability has been resolved:
accel/qaic: Add overflow check to remap_pfn_range during mmap
The call to remap_pfn_range in qaic_gem_object_mmap is susceptible to (re)mapping beyond the VMA if the BO is too large. This can cause use after free issues when munmap() unmaps only the VMA region and not the additional mappings. To prevent this, check the remaining size of the VMA before remapping and truncate the remapped length if sg->length is too large.
[jhugo: fix braces from checkpatch --strict]
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-oracle-7.0Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-azureUpgrade linux-image-ibmUpgrade linux-image-azure-fdeUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-raspiUpgrade linux-image-aws-7.0Upgrade linux-image-awsUpgrade linux-image-azure-fde-7.0Upgrade linux-image-raspi-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-aws-64kUpgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-oracleUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1008-oracle | Jul 21, 2026 | Jul 20, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 3, 2026 | Jul 19, 2026 |
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