GHSA-GJW5-XF6C-MCGQ
Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32In the Linux kernel, the following vulnerability has been resolved:
iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs
__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the cmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a latched error across a kexec fires the IRQ as soon as it is requested, and tegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array.
Request the IRQ only after cmdqv->vintfs is allocated and zeroed, so that a latched interrupt firing early runs the ISR against a valid array of NULL slots that it safely skips.
{
"affected": [],
"aliases": [
"CVE-2026-90428"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:47Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don\u0027t run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv-\u003evintfs array and set cmdqv-\u003enum_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv-\u003evintfs array.\n\nRequest the IRQ only after cmdqv-\u003evintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips.",
"id": "GHSA-gjw5-xf6c-mcgq",
"modified": "2026-09-17T18:32:05Z",
"published": "2026-09-17T18:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90428"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f627118b668659c6b195ac48beedb1bf8f53368"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b1605a56745f22670205f6561df5771bbbb62a99"
}
],
"schema_version": "1.4.0",
"severity": []
}
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