| 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-2023-52469: drivers/amd/pm: fix a use-after-free in kv_parse_power_table |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drivers/amd/pm: fix a use-after-free in kv_parse_power_table |
| |
| When ps allocated by kzalloc equals to NULL, kv_parse_power_table |
| frees adev->pm.dpm.ps that allocated before. However, after the control |
| flow goes through the following call chains: |
| |
| kv_parse_power_table |
| |-> kv_dpm_init |
| |-> kv_dpm_sw_init |
| |-> kv_dpm_fini |
| |
| The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its |
| first free in kv_parse_power_table and causes a use-after-free bug. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52469 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 4.19.306 with commit 8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 5.4.268 with commit 8b55b06e737feb2a645b0293ea27e38418876d63 |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 5.10.209 with commit 520e213a0b97b64735a13950e9371e0a5d7a5dc3 |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 5.15.148 with commit b6dcba02ee178282e0d28684d241e0b8462dea6a |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 6.1.75 with commit 35fa2394d26e919f63600ce631e6aefc95ec2706 |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 6.6.14 with commit 95084632a65d5c0d682a83b55935560bdcd2a1e3 |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 6.7.2 with commit 3426f059eacc33ecc676b0d66539297e1cfafd02 |
| Issue introduced in 4.2 with commit a2e73f56fa6282481927ec43aa9362c03c2e2104 and fixed in 6.8 with commit 28dd788382c43b330480f57cd34cde0840896743 |
| |
| 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-2023-52469 |
| 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/gpu/drm/amd/pm/legacy-dpm/kv_dpm.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/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e |
| https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63 |
| https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3 |
| https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6a |
| https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706 |
| https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3 |
| https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02 |
| https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743 |
