Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 99031d4f63c785d2a985b6a4c64c4256f7117052; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 65357a81f64cb3fbe13b4b937586755e4b3a072f; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 78612f478f9fadcec4f9b3b089970da67ffb47e9; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 908c9243ba309997b73cbda3e4c563d0fb345ee9; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before fdf50c788e0991e42a187ff75479a0df7fb752f1; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.
No references supplied.