CVE-2026-72194fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 99031d4f63c785d2a985b6a4c64c4256f7117052; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 65357a81f64cb3fbe13b4b937586755e4b3a072f; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 78612f478f9fadcec4f9b3b089970da67ffb47e9; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 908c9243ba309997b73cbda3e4c563d0fb345ee9; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before fdf50c788e0991e42a187ff75479a0df7fb752f1; 82cae269cfa953032fbb8980a7d554d60fb00b17 builds before 1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd | CNA record |
References
- https://git.kernel.org/stable/c/99031d4f63c785d2a985b6a4c64c4256f7117052
- https://git.kernel.org/stable/c/65357a81f64cb3fbe13b4b937586755e4b3a072f
- https://git.kernel.org/stable/c/96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34
- https://git.kernel.org/stable/c/78612f478f9fadcec4f9b3b089970da67ffb47e9
- https://git.kernel.org/stable/c/908c9243ba309997b73cbda3e4c563d0fb345ee9
- https://git.kernel.org/stable/c/fdf50c788e0991e42a187ff75479a0df7fb752f1
- https://git.kernel.org/stable/c/1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.