In the Linux kernel, the following vulnerability has been resolved:
drm/xe/reg_sr: Remove register pool
That pool implementation doesn't really work: if the krealloc happens to move the memory and return another address, the entries in the xarray become invalid, leading to use-after-free later:
BUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe] Read of size 4 at addr ffff8881244b2590 by task modprobe/2753
Allocated by task 2753: kasan_save_stack+0x39/0x70 kasan_save_track+0x14/0x40 kasan_save_alloc_info+0x37/0x60 __kasan_kmalloc+0xc3/0xd0 __kmalloc_node_track_caller_noprof+0x200/0x6d0 krealloc_noprof+0x229/0x380
Simplify the code to fix the bug. A better pooling strategy may be added back later if needed.
(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)
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 27, 2026 | Jul 27, 2026 |
| Ubuntu | — | Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1016-azure-nvidiaUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracleUpgrade linux-image-6.11.0-1012-azure-fdeUpgrade linux-image-6.8.0-1028-nvidiaUpgrade linux-image-6.8.0-1029-azureUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-6.8.0-1028-oemUpgrade linux-image-gkeopUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-oem-24.04bUpgrade linux-image-genericUpgrade linux-image-6.8.0-1026-oracleUpgrade linux-image-6.8.0-1028-nvidia-64kUpgrade linux-image-6.11.0-1011-lowlatency-64kUpgrade linux-image-6.11.0-1011-awsUpgrade linux-image-6.8.0-1026-ibmUpgrade linux-image-6.11.0-1012-azureUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1025-gkeUpgrade linux-image-azure-nvidiaUpgrade linux-image-6.11.0-21-genericUpgrade linux-image-6.11.0-1013-oracleUpgrade linux-image-generic-lpaeUpgrade linux-image-nvidiaUpgrade linux-image-gcpUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-oem-22.04aUpgrade linux-image-6.11.0-1007-realtimeUpgrade linux-image-6.8.0-60-genericUpgrade linux-image-ibmUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.11.0-1017-oemUpgrade linux-image-ibm-classicUpgrade linux-image-generic-64kUpgrade linux-image-virtualUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-1029-awsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1030-gcpUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-6.11.0-1013-oracle-64kUpgrade linux-image-6.8.0-1012-gkeopUpgrade linux-image-6.8.0-60-lowlatency-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1029-azure-fdeUpgrade linux-image-azureUpgrade linux-image-gkeUpgrade linux-image-raspiUpgrade linux-image-6.8.0-60-generic-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.11.0-1011-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-22.04cUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1026-oracle-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.11.0-1011-gcp-64kUpgrade linux-image-6.11.0-1010-raspiUpgrade linux-image-6.11.0-21-generic-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-kvmUpgrade linux-image-awsUpgrade linux-image-6.8.0-1028-nvidia-lowlatencyUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oem-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-60-lowlatencyUpgrade linux-image-6.8.0-1030-gcp-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1028-nvidia-lowlatency-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.11.0-1011-gcpUpgrade linux-image-6.8.1-1022-realtimeUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-hwe-24.04 | Mar 28, 2025 | Dec 27, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub