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In the Linux kernel, the following vulnerability has been resolved:
block: bio-integrity: Fix null-ptr-deref in bio_integrity_map_user()
pin_user_pages_fast() can partially succeed and return the number of pages that were actually pinned. However, the bio_integrity_map_user() does not handle this partial pinning. This leads to a general protection fault since bvec_from_pages() dereferences an unpinned page address, which is 0.
To fix this, add a check to verify that all requested memory is pinned. If partial pinning occurs, unpin the memory and return -EFAULT.
Kernel Oops:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 1061 Comm: nvme-passthroug Not tainted 7.0.0-11783-g90957f9314e8-dirty #16 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014 RIP: 0010:bio_integrity_map_user.cold+0x1b0/0x9d6
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftool6.18Upgrade kernel-livepatch-6.18.35-68.127Upgrade python3-perf6.18Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade perf6.18Upgrade perf6.18-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-develUpgrade kernel6.18-debuginfoUpgrade kernel6.18Upgrade kernel6.18-headersUpgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-toolsUpgrade kernel6.18-tools-develUpgrade microvm-kernel6.18Upgrade kernel6.18-modules-extra | Aug 10, 2026 | Jul 19, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 22, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-azure-fde-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-oracleUpgrade linux-image-nvidiaUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-aws-7.0Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-ibmUpgrade linux-image-gcp-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-gcp-64kUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-gcpUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-oracle-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-awsUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-azure-fdeUpgrade linux-image-azureUpgrade linux-image-aws-64kUpgrade linux-image-raspiUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-oracle-64k-7.0 | 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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