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CVE-2025-40157— EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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i10nm_edac驱动未跳过禁用内存控制器的DIMM枚举，可能导致越界访问。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux ba987eaaabf99b462cdfed86274e3455d5126349< 8100b6c0f9089d5b156642b81270ce27fff17490 affected
ba987eaaabf99b462cdfed86274e3455d5126349< 1652f14cf3bef5a4baa232de954fc22bdcaa78fe affected
ba987eaaabf99b462cdfed86274e3455d5126349< c20da24272f1ac79e9f9083bba577d049cd02bbb affected
ba987eaaabf99b462cdfed86274e3455d5126349< 2e6fe1bbefd9c059c3787d1c620fe67343a94dff affected
6.3 affected
< 6.3 unaffected
6.6.112≤ 6.6.* unaffected
6.12.53≤ 6.12.* unaffected
… +2 more rows
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I. Basic Information for CVE-2025-40157

Vulnerability Information
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Vulnerability Title
EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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i10nm_edac驱动未跳过禁用内存控制器的DIMM枚举，可能导致越界访问。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux ba987eaaabf99b462cdfed86274e3455d5126349 ~ 8100b6c0f9089d5b156642b81270ce27fff17490 -
Linux Linux 6.3 -

II. Public POCs for CVE-2025-40157

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III. Intelligence Information for CVE-2025-40157

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Same Patch Batch · Linux · 2025-11-12 · 96 CVEs total

CVE-2025-40176 9.8 CRITICAL tls: wait for pending async decryptions if tls_strp_msg_hold fails
CVE-2025-40140 8.8 HIGH net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast
CVE-2025-40168 8.1 HIGH smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().
CVE-2025-40158 8.1 HIGH ipv6: use RCU in ip6_output()
CVE-2025-40186 8.1 HIGH tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request().
CVE-2025-40135 8.1 HIGH ipv6: use RCU in ip6_xmit()
CVE-2025-40133 8.1 HIGH mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
CVE-2025-40204 8.1 HIGH sctp: Fix MAC comparison to be constant-time
CVE-2025-40141 8.0 HIGH Bluetooth: ISO: Fix possible UAF on iso_conn_free
CVE-2025-40172 7.8 HIGH accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages()
CVE-2025-40174 7.8 HIGH x86/mm: Fix SMP ordering in switch_mm_irqs_off()
CVE-2025-40167 7.8 HIGH ext4: detect invalid INLINE_DATA + EXTENTS flag combination
CVE-2025-40173 7.8 HIGH net/ip6_tunnel: Prevent perpetual tunnel growth
CVE-2025-40159 7.8 HIGH xsk: Harden userspace-supplied xdp_desc validation
CVE-2025-40182 7.8 HIGH crypto: skcipher - Fix reqsize handling
CVE-2025-40151 7.8 HIGH LoongArch: BPF: No support of struct argument in trampoline programs
CVE-2025-40206 7.8 HIGH netfilter: nft_objref: validate objref and objrefmap expressions
CVE-2025-40118 7.8 HIGH scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod
CVE-2025-40190 7.8 HIGH ext4: guard against EA inode refcount underflow in xattr update
CVE-2025-40166 7.8 HIGH drm/xe/guc: Check GuC running state before deregistering exec queue

Showing top 20 of 96 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40157

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