ghsa-7xqf-4p6f-w78m
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process
When tearing down a 'hisi_hns3' PMU, we mistakenly run the CPU hotplug callbacks after the device has been unregistered, leading to fireworks when we try to execute empty function callbacks within the driver:
| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 | CPU: 0 PID: 15 Comm: cpuhp/0 Tainted: G W O 5.12.0-rc4+ #1 | Hardware name: , BIOS KpxxxFPGA 1P B600 V143 04/22/2021 | pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--) | pc : perf_pmu_migrate_context+0x98/0x38c | lr : perf_pmu_migrate_context+0x94/0x38c | | Call trace: | perf_pmu_migrate_context+0x98/0x38c | hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu]
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 unregistered.
[will: Rewrote commit message]
{
"affected": [],
"aliases": [
"CVE-2023-52860"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:23Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process\n\nWhen tearing down a \u0027hisi_hns3\u0027 PMU, we mistakenly run the CPU hotplug\ncallbacks after the device has been unregistered, leading to fireworks\nwhen we try to execute empty function callbacks within the driver:\n\n | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n | CPU: 0 PID: 15 Comm: cpuhp/0 Tainted: G W O 5.12.0-rc4+ #1\n | Hardware name: , BIOS KpxxxFPGA 1P B600 V143 04/22/2021\n | pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--)\n | pc : perf_pmu_migrate_context+0x98/0x38c\n | lr : perf_pmu_migrate_context+0x94/0x38c\n |\n | Call trace:\n | perf_pmu_migrate_context+0x98/0x38c\n | hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu]\n\nUse cpuhp_state_remove_instance_nocalls() instead of\ncpuhp_state_remove_instance() so that the notifiers don\u0027t execute after\nthe PMU device has been unregistered.\n\n[will: Rewrote commit message]",
"id": "GHSA-7xqf-4p6f-w78m",
"modified": "2024-05-21T18:31:22Z",
"published": "2024-05-21T18:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52860"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3f5827371763f2d9c70719c270055a81d030f3d0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4589403a343bb0c72a6faf5898386ff964d4e01a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/50b560783f7f71790bcf70e9e9855155fb0af8c1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d04ff5437a45f275db5530efb49b68d0ec851f6f"
}
],
"schema_version": "1.4.0",
"severity": []
}