ghsa-8qg6-39mw-22hg
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
clk: imx95-blk-ctl: Fix synchronous abort
When enabling runtime PM for clock suppliers that also belong to a power domain, the following crash is thrown: error: synchronous external abort: 0000000096000010 [#1] PREEMPT SMP Workqueue: events_unbound deferred_probe_work_func pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : clk_mux_get_parent+0x60/0x90 lr : clk_core_reparent_orphans_nolock+0x58/0xd8 Call trace: clk_mux_get_parent+0x60/0x90 clk_core_reparent_orphans_nolock+0x58/0xd8 of_clk_add_hw_provider.part.0+0x90/0x100 of_clk_add_hw_provider+0x1c/0x38 imx95_bc_probe+0x2e0/0x3f0 platform_probe+0x70/0xd8
Enabling runtime PM without explicitly resuming the device caused the power domain cut off after clk_register() is called. As a result, a crash happens when the clock hardware provider is added and attempts to access the BLK_CTL register.
Fix this by using devm_pm_runtime_enable() instead of pm_runtime_enable() and getting rid of the pm_runtime_disable() in the cleanup path.
{
"affected": [],
"aliases": [
"CVE-2025-38631"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-22T16:15:36Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: imx95-blk-ctl: Fix synchronous abort\n\nWhen enabling runtime PM for clock suppliers that also belong to a power\ndomain, the following crash is thrown:\nerror: synchronous external abort: 0000000096000010 [#1] PREEMPT SMP\nWorkqueue: events_unbound deferred_probe_work_func\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : clk_mux_get_parent+0x60/0x90\nlr : clk_core_reparent_orphans_nolock+0x58/0xd8\n Call trace:\n clk_mux_get_parent+0x60/0x90\n clk_core_reparent_orphans_nolock+0x58/0xd8\n of_clk_add_hw_provider.part.0+0x90/0x100\n of_clk_add_hw_provider+0x1c/0x38\n imx95_bc_probe+0x2e0/0x3f0\n platform_probe+0x70/0xd8\n\nEnabling runtime PM without explicitly resuming the device caused\nthe power domain cut off after clk_register() is called. As a result,\na crash happens when the clock hardware provider is added and attempts\nto access the BLK_CTL register.\n\nFix this by using devm_pm_runtime_enable() instead of pm_runtime_enable()\nand getting rid of the pm_runtime_disable() in the cleanup path.",
"id": "GHSA-8qg6-39mw-22hg",
"modified": "2025-08-22T18:31:22Z",
"published": "2025-08-22T18:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38631"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/533dc3cb375cabd8a2beba293d63ef2acd3d0005"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9f0ee0baf25b46bb82655c687718ebb0ae1def7b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b08217a257215ed9130fce93d35feba66b49bf0a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c1dead8bb303f86905ea6a09e5acda931165453b"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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