In the Linux kernel, the following vulnerability has been resolved:
iomap: adjust read range correctly for non-block-aligned positions
iomap_adjust_read_range() assumes that the position and length passed in are block-aligned. This is not always the case however, as shown in the syzbot generated case for erofs. This causes too many bytes to be skipped for uptodate blocks, which results in returning the incorrect position and length to read in. If all the blocks are uptodate, this underflows length and returns a position beyond the folio.
Fix the calculation to also take into account the block offset when calculating how many bytes can be skipped for uptodate blocks.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftool6.12-debuginfoUpgrade kernel-livepatch-6.12.64-87.122Upgrade kernel6.12-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-headersUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade bpftool6.12Upgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpfUpgrade perf6.12-debuginfoUpgrade kernel6.12-toolsUpgrade python3-perf6.12-debuginfoUpgrade python3-perf6.12 | Feb 20, 2026 | Jan 13, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Feb 24, 2026 | Jan 13, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jan 13, 2026 |
| Ubuntu | — | Upgrade linux-image-generic-6.8Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-110-lowlatency-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.17.0-1020-oemUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1012-awsUpgrade linux-image-6.8.0-1049-oracleUpgrade linux-image-oem-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-nvidiaUpgrade linux-image-oem-24.04bUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-genericUpgrade linux-image-gkeUpgrade linux-image-ibm-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-oem-24.04dUpgrade linux-image-oem-22.04Upgrade linux-image-ibmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-raspi-6.17Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1054-azure-fipsUpgrade linux-image-6.17.0-22-generic-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1051-nvidia-64kUpgrade linux-image-aws-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-azure-fips-6.8Upgrade linux-image-virtualUpgrade linux-image-6.17.0-1011-oracleUpgrade linux-image-fips-6.8Upgrade linux-image-6.17.0-1012-gcp-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-gcp-6.8Upgrade linux-image-oracleUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1059-azureUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.8.0-1054-gcp-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-1049-oracle-64kUpgrade linux-image-6.8.0-1051-nvidiaUpgrade linux-image-6.8.0-110-genericUpgrade linux-image-6.8.0-1050-gkeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-fipsUpgrade linux-image-gcpUpgrade linux-image-ibm-classicUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1051-nvidia-lowlatencyUpgrade linux-image-6.8.0-1054-gcp-fipsUpgrade linux-image-6.17.0-1010-realtimeUpgrade linux-image-azure-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-azure-6.17Upgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1022-nvidia-tegraUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-xilinxUpgrade linux-image-6.17.0-1011-oracle-64kUpgrade linux-image-oracle-6.17Upgrade linux-image-6.8.0-1022-nvidia-tegra-rtUpgrade linux-image-6.8.0-1052-aws-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1052-aws-64kUpgrade linux-image-generic-64k-6.17Upgrade linux-image-nvidia-tegraUpgrade linux-image-awsUpgrade linux-image-oem-6.17Upgrade linux-image-oem-24.04cUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1050-gke-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-64kUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.8.1-1047-realtimeUpgrade linux-image-6.8.0-110-generic-64kUpgrade linux-image-6.17.0-1012-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oem-22.04dUpgrade linux-image-azureUpgrade linux-image-6.8.0-2042-raspi-realtimeUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-virtual-6.17Upgrade linux-image-realtime-6.8.1Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1054-azureUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-aws-6.17Upgrade linux-image-oracle-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-64k-6.17Upgrade linux-image-6.8.0-1037-gkeopUpgrade linux-image-6.17.0-22-genericUpgrade linux-image-oem-22.04cUpgrade linux-image-aws-fipsUpgrade linux-image-6.17.0-1013-azureUpgrade linux-image-6.17.0-1014-raspiUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.8.0-1051-ibmUpgrade linux-image-6.8.0-110-fipsUpgrade linux-image-6.8.0-1052-raspiUpgrade linux-image-raspi-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-generic-64kUpgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.17.0-1012-aws-64kUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1052-awsUpgrade linux-image-6.8.0-1051-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-realtime-6.17Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-kvmUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-110-lowlatencyUpgrade linux-image-raspiUpgrade linux-image-gcp-fipsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-6.17Upgrade linux-image-6.8.0-1054-gcp | Apr 17, 2026 | Jan 13, 2026 |
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