GHSA-CHC4-V67R-8FWQ
Vulnerability from github – Published: 2026-09-17 18:31 – Updated: 2026-09-17 18:31In the Linux kernel, the following vulnerability has been resolved:
clk: visconti: Make sure clk_init_data is fully initialized
The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled.
visconti_clk_register_gate() fills in init.parent_data, and assumes that init.parent_names is NULL. However, the latter in uninitialized, and thus may cause a crash.
Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.
{
"affected": [],
"aliases": [
"CVE-2026-90122"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:04Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: visconti: Make sure clk_init_data is fully initialized\n\nThe clk_init_data structure contains several mutually-exclusive members\nfor different methods to specify the possible parents of a clock,\nprompting drivers to initialize only the members they need. However,\nnot initializing all members may cause subtle issues, which are only\nexposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is\nenabled.\n\nvisconti_clk_register_gate() fills in init.parent_data, and assumes that\ninit.parent_names is NULL. However, the latter in uninitialized, and\nthus may cause a crash.\n\nMake sure all members are fully initialized, to fix such bugs, and to\navoid future breakage when converting drivers to a different method for\nspecifying the parents.",
"id": "GHSA-chc4-v67r-8fwq",
"modified": "2026-09-17T18:31:51Z",
"published": "2026-09-17T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90122"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a"
}
],
"schema_version": "1.4.0",
"severity": []
}
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