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CVE-2025-40359— perf/x86/intel: Fix KASAN global-out-of-bounds warning

EPSS 0.03% · P9
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I. Basic Information for CVE-2025-40359

Vulnerability Information
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Vulnerability Title
perf/x86/intel: Fix KASAN global-out-of-bounds warning
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix KASAN global-out-of-bounds warning When running "perf mem record" command on CWF, the below KASAN global-out-of-bounds warning is seen. ================================================================== BUG: KASAN: global-out-of-bounds in cmt_latency_data+0x176/0x1b0 Read of size 4 at addr ffffffffb721d000 by task dtlb/9850 Call Trace: kasan_report+0xb8/0xf0 cmt_latency_data+0x176/0x1b0 setup_arch_pebs_sample_data+0xf49/0x2560 intel_pmu_drain_arch_pebs+0x577/0xb00 handle_pmi_common+0x6c4/0xc80 The issue is caused by below code in __grt_latency_data(). The code tries to access x86_hybrid_pmu structure which doesn't exist on non-hybrid platform like CWF. WARN_ON_ONCE(hybrid_pmu(event->pmu)->pmu_type == hybrid_big) So add is_hybrid() check before calling this WARN_ON_ONCE to fix the global-out-of-bounds access issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于perf/x86/intel中未正确处理混合PMU结构，可能导致全局越界访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 090262439f66df03d4e9d0e52e14104b729e2ef8 ~ 1b61a1da3d8105ea1be548c94c2856697eb7ffd1 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2025-40359

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III. Intelligence Information for CVE-2025-40359

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Same Patch Batch · Linux · 2025-12-16 · 157 CVEs total

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CVE-2025-68256staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68257comedi: check device's attached status in compat ioctls
CVE-2025-68258comedi: multiq3: sanitize config options in multiq3_attach()
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CVE-2025-68282usb: gadget: udc: fix use-after-free in usb_gadget_state_work
CVE-2025-68281ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list
CVE-2025-68266bfs: Reconstruct file type when loading from disk
CVE-2025-68262crypto: zstd - fix double-free in per-CPU stream cleanup
CVE-2025-68261ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock()
CVE-2025-68250hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68264ext4: refresh inline data size before write operations

Showing top 20 of 157 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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