| 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-2022-48881: platform/x86/amd: Fix refcount leak in amd_pmc_probe |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| platform/x86/amd: Fix refcount leak in amd_pmc_probe |
| |
| pci_get_domain_bus_and_slot() takes reference, the caller should release |
| the reference by calling pci_dev_put() after use. Call pci_dev_put() in |
| the error path to fix this. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48881 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.18 with commit 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d and fixed in 6.1.7 with commit 3944162821295993ec89992dec98ab6be6306cc0 |
| Issue introduced in 5.18 with commit 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d and fixed in 6.2 with commit ccb32e2be14271a60e9ba89c6d5660cc9998773c |
| |
| 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-2022-48881 |
| 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/platform/x86/amd/pmc.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/3944162821295993ec89992dec98ab6be6306cc0 |
| https://git.kernel.org/stable/c/ccb32e2be14271a60e9ba89c6d5660cc9998773c |
