| 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-2023-52859: perf: hisi: Fix use-after-free when register pmu fails |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| perf: hisi: Fix use-after-free when register pmu fails |
| |
| When we fail to register the uncore pmu, the pmu context may not been |
| allocated. The error handing will call cpuhp_state_remove_instance() |
| to call uncore pmu offline callback, which migrate the pmu context. |
| Since that's liable to lead to some kind of use-after-free. |
| |
| Use cpuhp_state_remove_instance_nocalls() instead of |
| cpuhp_state_remove_instance() so that the notifiers don't execute after |
| the PMU device has been failed to register. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52859 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a and fixed in 5.15.139 with commit 0e1e88bba286621b886218363de07b319d6208b2 |
| Issue introduced in 5.13 with commit 3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a and fixed in 6.1.63 with commit b660420f449d094b1fabfa504889810b3a63cdd5 |
| Issue introduced in 5.13 with commit 3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a and fixed in 6.5.12 with commit 3405f364f82d4f5407a8b4c519dc15d24b847fda |
| Issue introduced in 5.13 with commit 3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a and fixed in 6.6.2 with commit 75bab28ffd05ec8879c197890b1bd1dfec8d3f63 |
| Issue introduced in 5.13 with commit 3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a and fixed in 6.7 with commit b805cafc604bfdb671fae7347a57f51154afa735 |
| |
| 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-2023-52859 |
| 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/perf/hisilicon/hisi_uncore_pa_pmu.c |
| drivers/perf/hisilicon/hisi_uncore_sllc_pmu.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/0e1e88bba286621b886218363de07b319d6208b2 |
| https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5 |
| https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda |
| https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63 |
| https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735 |
