| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-22080: fs/ntfs3: Prevent integer overflow in hdr_first_de() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| fs/ntfs3: Prevent integer overflow in hdr_first_de() |
| |
| The "de_off" and "used" variables come from the disk so they both need to |
| check. The problem is that on 32bit systems if they're both greater than |
| UINT_MAX - 16 then the check does work as intended because of an integer |
| overflow. |
| |
| The Linux kernel CVE team has assigned CVE-2025-22080 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit 60ce8dfde03558bfc290cd915c60fa243ba2ae84 and fixed in 6.6.87 with commit f6d44b1aa46d317e52c21fb9314cfb20dd69e7b0 |
| Issue introduced in 6.2 with commit 60ce8dfde03558bfc290cd915c60fa243ba2ae84 and fixed in 6.12.23 with commit 201a2bdda13b619c4927700ffe47d387a30ced50 |
| Issue introduced in 6.2 with commit 60ce8dfde03558bfc290cd915c60fa243ba2ae84 and fixed in 6.13.11 with commit 85615aa442830027923fc690390fa74d17b36ae1 |
| Issue introduced in 6.2 with commit 60ce8dfde03558bfc290cd915c60fa243ba2ae84 and fixed in 6.14.2 with commit b9982065b82b4177ba3a7a72ce18c84921f7494d |
| Issue introduced in 6.2 with commit 60ce8dfde03558bfc290cd915c60fa243ba2ae84 and fixed in 6.15 with commit 6bb81b94f7a9cba6bde9a905cef52a65317a8b04 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-22080 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| fs/ntfs3/ntfs.h |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/f6d44b1aa46d317e52c21fb9314cfb20dd69e7b0 |
| https://git.kernel.org/stable/c/201a2bdda13b619c4927700ffe47d387a30ced50 |
| https://git.kernel.org/stable/c/85615aa442830027923fc690390fa74d17b36ae1 |
| https://git.kernel.org/stable/c/b9982065b82b4177ba3a7a72ce18c84921f7494d |
| https://git.kernel.org/stable/c/6bb81b94f7a9cba6bde9a905cef52a65317a8b04 |
