| From bippy-5f407fcff5a0 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-2023-52652: NTB: fix possible name leak in ntb_register_device() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NTB: fix possible name leak in ntb_register_device() |
| |
| If device_register() fails in ntb_register_device(), the device name |
| allocated by dev_set_name() should be freed. As per the comment in |
| device_register(), callers should use put_device() to give up the |
| reference in the error path. So fix this by calling put_device() in the |
| error path so that the name can be freed in kobject_cleanup(). |
| |
| As a result of this, put_device() in the error path of |
| ntb_register_device() is removed and the actual error is returned. |
| |
| [mani: reworded commit message] |
| |
| The Linux kernel CVE team has assigned CVE-2023-52652 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 5.15.153 with commit a62b9f3d7bbfac874cc0c638bc1776dcf1f8ec06 |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 6.1.83 with commit 6632a54ac8057cc0b0d789c6f73883e871bcd25c |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 6.6.23 with commit a039690d323221eb5865f1f31db3ec264e7a14b6 |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 6.7.11 with commit e8025439ef8e16029dc313d78a351ef192469b7b |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 6.8.2 with commit 913421f9f7fd8324dcc41753d0f28b52e177ef04 |
| Issue introduced in 4.2 with commit a1bd3baeb2f18b2b3d0f98ce5fdaa725149b950b and fixed in 6.9 with commit aebfdfe39b9327a3077d0df8db3beb3160c9bdd0 |
| |
| 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-2023-52652 |
| 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/ntb/core.c |
| drivers/pci/endpoint/functions/pci-epf-vntb.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/a62b9f3d7bbfac874cc0c638bc1776dcf1f8ec06 |
| https://git.kernel.org/stable/c/6632a54ac8057cc0b0d789c6f73883e871bcd25c |
| https://git.kernel.org/stable/c/a039690d323221eb5865f1f31db3ec264e7a14b6 |
| https://git.kernel.org/stable/c/e8025439ef8e16029dc313d78a351ef192469b7b |
| https://git.kernel.org/stable/c/913421f9f7fd8324dcc41753d0f28b52e177ef04 |
| https://git.kernel.org/stable/c/aebfdfe39b9327a3077d0df8db3beb3160c9bdd0 |
