| From bippy-7c5fe7eed585 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-21937: Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() |
| |
| Add check for the return value of mgmt_alloc_skb() in |
| mgmt_remote_name() to prevent null pointer dereference. |
| |
| The Linux kernel CVE team has assigned CVE-2025-21937 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.18 with commit ba17bb62ce415950753c19d16bb43b2bd3701158 and fixed in 6.1.131 with commit 37785a01040cb5d11ed0ddbcbf78491fcd073161 |
| Issue introduced in 5.18 with commit ba17bb62ce415950753c19d16bb43b2bd3701158 and fixed in 6.6.83 with commit c5845c73cbacf5704169283ef29ca02031a36564 |
| Issue introduced in 5.18 with commit ba17bb62ce415950753c19d16bb43b2bd3701158 and fixed in 6.12.19 with commit 88310caff68ae69d0574859f7926a59c1da2d60b |
| Issue introduced in 5.18 with commit ba17bb62ce415950753c19d16bb43b2bd3701158 and fixed in 6.13.7 with commit 69fb168b88e4d62cb31cdd725b67ccc5216cfcaf |
| Issue introduced in 5.18 with commit ba17bb62ce415950753c19d16bb43b2bd3701158 and fixed in 6.14 with commit f2176a07e7b19f73e05c805cf3d130a2999154cb |
| Issue introduced in 5.17.2 with commit 0f526a6d3e9347d94c2c0b5292a3cb3b25115019 |
| |
| 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-2025-21937 |
| 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: |
| net/bluetooth/mgmt.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/37785a01040cb5d11ed0ddbcbf78491fcd073161 |
| https://git.kernel.org/stable/c/c5845c73cbacf5704169283ef29ca02031a36564 |
| https://git.kernel.org/stable/c/88310caff68ae69d0574859f7926a59c1da2d60b |
| https://git.kernel.org/stable/c/69fb168b88e4d62cb31cdd725b67ccc5216cfcaf |
| https://git.kernel.org/stable/c/f2176a07e7b19f73e05c805cf3d130a2999154cb |
