ghsa-q88h-gvfq-84pc
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
iommu/mediatek: Remove clk_disable in mtk_iommu_remove
After the commit b34ea31fe013 ("iommu/mediatek: Always enable the clk on resume"), the iommu clock is controlled by the runtime callback. thus remove the clk control in the mtk_iommu_remove.
Otherwise, it will warning like:
echo 14018000.iommu > /sys/bus/platform/drivers/mtk-iommu/unbind
[ 51.413044] ------------[ cut here ]------------ [ 51.413648] vpp0_smi_iommu already disabled [ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/ drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8 [ 51.417174] Hardware name: MT8195V/C(ENG) (DT) [ 51.418635] pc : clk_core_disable+0xb0/0xb8 [ 51.419177] lr : clk_core_disable+0xb0/0xb8 ... [ 51.429375] Call trace: [ 51.429694] clk_core_disable+0xb0/0xb8 [ 51.430193] clk_core_disable_lock+0x24/0x40 [ 51.430745] clk_disable+0x20/0x30 [ 51.431189] mtk_iommu_remove+0x58/0x118 [ 51.431705] platform_remove+0x28/0x60 [ 51.432197] device_release_driver_internal+0x110/0x1f0 [ 51.432873] device_driver_detach+0x18/0x28 [ 51.433418] unbind_store+0xd4/0x108 [ 51.433886] drv_attr_store+0x24/0x38 [ 51.434363] sysfs_kf_write+0x40/0x58 [ 51.434843] kernfs_fop_write_iter+0x164/0x1e0
{
"affected": [],
"aliases": [
"CVE-2022-49427"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:19Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Remove clk_disable in mtk_iommu_remove\n\nAfter the commit b34ea31fe013 (\"iommu/mediatek: Always enable the clk on\nresume\"), the iommu clock is controlled by the runtime callback.\nthus remove the clk control in the mtk_iommu_remove.\n\nOtherwise, it will warning like:\n\necho 14018000.iommu \u003e /sys/bus/platform/drivers/mtk-iommu/unbind\n\n[ 51.413044] ------------[ cut here ]------------\n[ 51.413648] vpp0_smi_iommu already disabled\n[ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/\n drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8\n[ 51.417174] Hardware name: MT8195V/C(ENG) (DT)\n[ 51.418635] pc : clk_core_disable+0xb0/0xb8\n[ 51.419177] lr : clk_core_disable+0xb0/0xb8\n...\n[ 51.429375] Call trace:\n[ 51.429694] clk_core_disable+0xb0/0xb8\n[ 51.430193] clk_core_disable_lock+0x24/0x40\n[ 51.430745] clk_disable+0x20/0x30\n[ 51.431189] mtk_iommu_remove+0x58/0x118\n[ 51.431705] platform_remove+0x28/0x60\n[ 51.432197] device_release_driver_internal+0x110/0x1f0\n[ 51.432873] device_driver_detach+0x18/0x28\n[ 51.433418] unbind_store+0xd4/0x108\n[ 51.433886] drv_attr_store+0x24/0x38\n[ 51.434363] sysfs_kf_write+0x40/0x58\n[ 51.434843] kernfs_fop_write_iter+0x164/0x1e0",
"id": "GHSA-q88h-gvfq-84pc",
"modified": "2025-10-22T18:30:30Z",
"published": "2025-10-22T18:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49427"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/053465ab20dcd324a43a1811ee98e5721e6a3e65"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6eaa046c696c83542c56765cdde564d9818ff1fb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/98df772bdd1c4ce717a26289efea15cbbe4b64ed"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9b3bd97acb4f8954b8a43a5d63ed9050d463b4e1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
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