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Message-ID: <2024052117-CVE-2023-52859-ad0e@gregkh> Date: Tue, 21 May 2024 17:32:35 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.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 3bf30882c3c7 and fixed in 5.15.139 with commit 0e1e88bba286 Issue introduced in 5.13 with commit 3bf30882c3c7 and fixed in 6.1.63 with commit b660420f449d Issue introduced in 5.13 with commit 3bf30882c3c7 and fixed in 6.5.12 with commit 3405f364f82d Issue introduced in 5.13 with commit 3bf30882c3c7 and fixed in 6.6.2 with commit 75bab28ffd05 Issue introduced in 5.13 with commit 3bf30882c3c7 and fixed in 6.7 with commit b805cafc604b 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
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