| 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-2025-37817: mcb: fix a double free bug in chameleon_parse_gdd() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mcb: fix a double free bug in chameleon_parse_gdd() |
| |
| In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' |
| would be released in mcb_device_register() via put_device(). |
| Thus, goto 'err' label and free 'mdev' again causes a double free. |
| Just return if mcb_device_register() fails. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37817 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 5.4.293 with commit d70184958b0ea8c0fd52e2b456654b503e769fc8 |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 5.10.237 with commit 4ffe8c9fb561e4427dd1a3056cd5b3685b74f78d |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 5.15.181 with commit 59f993cd36b6e28a394ba3d977e8ffe5c9884e3b |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 6.1.136 with commit c5b8a549ef1fcc6066b037a3962c79d60465ba0b |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 6.6.89 with commit 96838eb1836fd372e42be5db84f0b333b65146a6 |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 6.12.26 with commit df1a5d5c6134224f9298e5189230f9d29ae50cac |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 6.14.5 with commit bcc7d58ee5173e34306026bd01e1fbf75e169d37 |
| Issue introduced in 3.15 with commit 3764e82e5150d87b205c10cd78a9c9ab86fbfa51 and fixed in 6.15 with commit 7c7f1bfdb2249f854a736d9b79778c7e5a29a150 |
| |
| 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-2025-37817 |
| 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: |
| drivers/mcb/mcb-parse.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/d70184958b0ea8c0fd52e2b456654b503e769fc8 |
| https://git.kernel.org/stable/c/4ffe8c9fb561e4427dd1a3056cd5b3685b74f78d |
| https://git.kernel.org/stable/c/59f993cd36b6e28a394ba3d977e8ffe5c9884e3b |
| https://git.kernel.org/stable/c/c5b8a549ef1fcc6066b037a3962c79d60465ba0b |
| https://git.kernel.org/stable/c/96838eb1836fd372e42be5db84f0b333b65146a6 |
| https://git.kernel.org/stable/c/df1a5d5c6134224f9298e5189230f9d29ae50cac |
| https://git.kernel.org/stable/c/bcc7d58ee5173e34306026bd01e1fbf75e169d37 |
| https://git.kernel.org/stable/c/7c7f1bfdb2249f854a736d9b79778c7e5a29a150 |
