Bugzilla – Bug 1225582
VUL-0: CVE-2023-52859: kernel: perf: hisi: Fix use-after-free when register pmu fails
Last modified: 2024-06-04 06:09:27 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52859 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52859.mbox 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 https://www.cve.org/CVERecord?id=CVE-2023-52859 https://bugzilla.redhat.com/show_bug.cgi?id=2282745