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CVE-2025-39681

In the Linux kernel, the following vulnerability has been resolved:

x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper

Since

  923f3a2b48bd ("x86/resctrl: Query LLC monitoring properties once during boot")

resctrl_cpu_detect() has been moved from common CPU initialization code to
the vendor-specific BSP init helper, while Hygon didn't put that call in their
code.

This triggers a division by zero fault during early booting stage on our
machines with X86_FEATURE_CQM* supported, where get_rdt_mon_resources() tries
to calculate mon_l3_config with uninitialized boot_cpu_data.x86_cache_occ_scale.

Add the missing resctrl_cpu_detect() in the Hygon BSP init helper.

  [ bp: Massage commit message. ]

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 62f12cde10118253348a7540e85606869bd69432
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < 873f32201df8876bdb2563e3187e79149427cab4
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < fb81222c1559f89bfe3aa1010f6d112531d55353
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < 7207923d8453ebfb35667c1736169f2dd796772e
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < a9e5924daa954c9f585c1ca00358afe71d6781c4
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < d23264c257a70dbe021b43b3bc2ee16134cd2c69
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
Version < d8df126349dad855cdfedd6bbf315bad2e901c2f
Version 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.8
Status affected
Version < 5.8
Version 0
Status unaffected
Version <= 5.10.*
Version 5.10.242
Status unaffected
Version <= 5.15.*
Version 5.15.190
Status unaffected
Version <= 6.1.*
Version 6.1.149
Status unaffected
Version <= 6.6.*
Version 6.6.103
Status unaffected
Version <= 6.12.*
Version 6.12.44
Status unaffected
Version <= 6.16.*
Version 6.16.4
Status unaffected
Version <= *
Version 6.17-rc3
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.092
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String