| 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-2025-37740: jfs: add sanity check for agwidth in dbMount |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| jfs: add sanity check for agwidth in dbMount |
| |
| The width in dmapctl of the AG is zero, it trigger a divide error when |
| calculating the control page level in dbAllocAG. |
| |
| To avoid this issue, add a check for agwidth in dbAllocAG. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37740 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.4.293 with commit a065cec230aa807c18828a3eee82f1c8592c2adf |
| Fixed in 5.10.237 with commit 722e72f7f9c69fcb3ab7988c2471feff7a4c8de1 |
| Fixed in 5.15.181 with commit a741f29ac8b6374c9904be8b7ac7cdfcd7e7e4fa |
| Fixed in 6.1.135 with commit a260bf14cd347878f01f70739ba829442a474a16 |
| Fixed in 6.6.88 with commit cc0bc4cb62ce5fa0c383e3bf0765d01f46bd49ac |
| Fixed in 6.12.24 with commit ccd97c8a4f90810f228ee40d1055148fa146dd57 |
| Fixed in 6.13.12 with commit c8c96a9e7660e5e5eea445978fe8f2e432d91c1f |
| Fixed in 6.14.3 with commit e3f85edb03183fb06539e5b50dd2c4bb42b869f0 |
| Fixed in 6.15 with commit ddf2846f22e8575d6b4b6a66f2100f168b8cd73d |
| |
| 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-2025-37740 |
| 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/jfs/jfs_dmap.c |
| |
| |
| 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/a065cec230aa807c18828a3eee82f1c8592c2adf |
| https://git.kernel.org/stable/c/722e72f7f9c69fcb3ab7988c2471feff7a4c8de1 |
| https://git.kernel.org/stable/c/a741f29ac8b6374c9904be8b7ac7cdfcd7e7e4fa |
| https://git.kernel.org/stable/c/a260bf14cd347878f01f70739ba829442a474a16 |
| https://git.kernel.org/stable/c/cc0bc4cb62ce5fa0c383e3bf0765d01f46bd49ac |
| https://git.kernel.org/stable/c/ccd97c8a4f90810f228ee40d1055148fa146dd57 |
| https://git.kernel.org/stable/c/c8c96a9e7660e5e5eea445978fe8f2e432d91c1f |
| https://git.kernel.org/stable/c/e3f85edb03183fb06539e5b50dd2c4bb42b869f0 |
| https://git.kernel.org/stable/c/ddf2846f22e8575d6b4b6a66f2100f168b8cd73d |
