# CVE-2026-72194: linux: In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: add depth limit to indx_find_buffer to... CVE-2026-72194 is fixed in 56 products on 1 platform, first by DEBIAN-CVE-2026-72194, released August 15, 2026. It is not reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2026-72194 - Priority: Urgent - CVSS: 9.8 (critical) - EPSS: 0.0080 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Aug 15, 2026 ## Description In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow indx_find_buffer() recursively descends the B+ tree index with no depth limit. A crafted NTFS image with circular index node references causes unbounded recursion, overflowing the kernel stack and panicking the system. This is reachable by mounting a malicious NTFS filesystem (e.g. from a USB drive via desktop automount) and deleting a file whose index entry triggers the rebalancing fallback path in indx_delete_entry(). Add a depth parameter and bail out with -EINVAL when it reaches the fnd->nodes array bound, matching the constraint already enforced by fnd_push() in indx_find(). The related function indx_find() was previously patched for a similar infinite-loop issue (commit 1732053c8a6b), but indx_find_buffer() was missed. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | bpftool-debuginfo amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | bpftool6.12 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | bpftool6.18 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | bpftool6.18-debuginfo amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-debuginfo amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-devel amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-headers amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-livepatch-6.1.180-225.360 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-livepatch-6.12.100-125.179 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel-livepatch-6.18.41-94.142 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel-modules-extra amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-modules-extra-common amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-tools amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-tools-debuginfo amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel-tools-devel amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | kernel6.12 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-devel amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-headers amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-tools amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | kernel6.18 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-debuginfo amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-debuginfo-common-aarch64 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-debuginfo-common-x86_64 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-devel amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-headers amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-modules-extra amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-modules-extra-common amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-tools amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-tools-debuginfo amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | kernel6.18-tools-devel amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | linux Debian 12.15 (bookworm) | 6.1.180-1 | [DEBIAN-CVE-2026-72194](https://patchblox.com/security/data/fix/linux/debian-cve-2026-72194.md) | Aug 15, 2026 | | Linux | linux Debian 13.5 (trixie) | 6.12.100-1 | [DEBIAN-CVE-2026-72194](https://patchblox.com/security/data/fix/linux/debian-cve-2026-72194.md) | Aug 15, 2026 | | Linux | linux Debian 14 | 7.1.5-1 | [DEBIAN-CVE-2026-72194](https://patchblox.com/security/data/fix/linux/debian-cve-2026-72194.md) | Aug 15, 2026 | | Linux | microvm-kernel6.18 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | perf amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | perf-debuginfo amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | perf6.12 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | perf6.18 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | perf6.18-debuginfo amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | python3-perf amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | python3-perf-debuginfo amzn 2023 | 1:6.1.180-225.360.amzn2023 | [ALAS2023-2026-2058](https://patchblox.com/security/data/fix/linux/alas2023-2026-2058.md) | Aug 17, 2026 | | Linux | python3-perf6.12 amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.100-125.179.amzn2023 | [ALAS2023-2026-2057](https://patchblox.com/security/data/fix/linux/alas2023-2026-2057.md) | Aug 17, 2026 | | Linux | python3-perf6.18 amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | | Linux | python3-perf6.18-debuginfo amzn 2023 | 1:6.18.41-94.142.amzn2023 | [ALAS2023-2026-2071](https://patchblox.com/security/data/fix/linux/alas2023-2026-2071.md) | Aug 31, 2026 | --- Data as of 2026-11-08T19:12:23Z UTC. 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