CVE-2025-40157
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller When loading the i10nm_edac driver on some Intel Granite Rapids servers, a call trace may appear as follows: UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16 shift exponent -66 is negative ... __ubsan_handle_shift_out_of_bounds+0x1e3/0x390 skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common] i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac] skx_register_mci+0x159/0x220 [skx_edac_common] i10nm_init+0xcb0/0x1ff0 [i10nm_edac] ... This occurs because some BIOS may disable a memory controller if there aren't any memory DIMMs populated on this memory controller. The DIMMMTR register of this disabled memory controller contains the invalid value ~0, resulting in the call trace above. Fix this call trace by skipping DIMM enumeration on a disabled memory controller.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-11-12 11:15:45.763000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-40157",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-11-12T11:15:45.763",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/i10nm: Skip DIMM enumeration on a disabled memory controller\n\nWhen loading the i10nm_edac driver on some Intel Granite Rapids servers,\na call trace may appear as follows:\n\n UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16\n shift exponent -66 is negative\n ...\n __ubsan_handle_shift_out_of_bounds+0x1e3/0x390\n skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common]\n i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac]\n skx_register_mci+0x159/0x220 [skx_edac_common]\n i10nm_init+0xcb0/0x1ff0 [i10nm_edac]\n ...\n\nThis occurs because some BIOS may disable a memory controller if there\naren't any memory DIMMs populated on this memory controller. The DIMMMTR\nregister of this disabled memory controller contains the invalid value\n~0, resulting in the call trace above.\n\nFix this call trace by skipping DIMM enumeration on a disabled memory\ncontroller."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nEDAC/i10nm: Omitir la enumeración de DIMM en un controlador de memoria deshabilitado\n\nAl cargar el controlador i10nm_edac en algunos servidores Intel Granite Rapids, puede aparecer una traza de llamadas de la siguiente manera:\n\n UBSAN: shift-out-of-bounds en drivers/edac/skx_common.c:453:16\n shift exponent -66 is negative\n ...\n __ubsan_handle_shift_out_of_bounds+0x1e3/0x390\n skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common]\n i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac]\n skx_register_mci+0x159/0x220 [skx_edac_common]\n i10nm_init+0xcb0/0x1ff0 [i10nm_edac]\n ...\n\nEsto ocurre porque algunas BIOS pueden deshabilitar un controlador de memoria si no hay ningún DIMM de memoria instalado en este controlador de memoria. El registro DIMMMTR de este controlador de memoria deshabilitado contiene el valor inválido ~0, lo que resulta en la traza de llamadas anterior.\n\nSolucione esta traza de llamadas omitiendo la enumeración de DIMM en un controlador de memoria deshabilitado."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/edac/i10nm_base.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "ba987eaaabf99b462cdfed86274e3455d5126349",
"lessThan": "8100b6c0f9089d5b156642b81270ce27fff17490",
"versionType": "git",
"status": "affected"
},
{
"version": "ba987eaaabf99b462cdfed86274e3455d5126349",
"lessThan": "1652f14cf3bef5a4baa232de954fc22bdcaa78fe",
"versionType": "git",
"status": "affected"
},
{
"version": "ba987eaaabf99b462cdfed86274e3455d5126349",
"lessThan": "c20da24272f1ac79e9f9083bba577d049cd02bbb",
"versionType": "git",
"status": "affected"
},
{
"version": "ba987eaaabf99b462cdfed86274e3455d5126349",
"lessThan": "2e6fe1bbefd9c059c3787d1c620fe67343a94dff",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/edac/i10nm_base.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.3",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.3",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.112",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.53",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.17.3",
"lessThanOrEqual": "6.17.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/1652f14cf3bef5a4baa232de954fc22bdcaa78fe",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2e6fe1bbefd9c059c3787d1c620fe67343a94dff",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8100b6c0f9089d5b156642b81270ce27fff17490",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c20da24272f1ac79e9f9083bba577d049cd02bbb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}