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CVE-2024-50141— ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context

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，该漏洞源于于ACPI PRM处理程序在寻找EFI_MEMORY_RUNTIME块时，错误地找到了EFI_CONVENTIONAL_MEMORY类型的块。

CVSS 7.8 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux cefc7ca46235f01d5233e3abd4b79452af01d9e9< 8df52929530839e878e6912e33348b54101e3250 affected
cefc7ca46235f01d5233e3abd4b79452af01d9e9< 8ce081ad842510f0e70fa6065a401660eac876d4 affected
cefc7ca46235f01d5233e3abd4b79452af01d9e9< 795b080d9aa127215a5baf088a22fa09341a0126 affected
cefc7ca46235f01d5233e3abd4b79452af01d9e9< 20e9fafb8bb6f545667d7916b0e81e68c0748810 affected
cefc7ca46235f01d5233e3abd4b79452af01d9e9< 088984c8d54c0053fc4ae606981291d741c5924b affected
5.14 affected
< 5.14 unaffected
5.15.171≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-50141

Vulnerability Information
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Vulnerability Title
ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context PRMT needs to find the correct type of block to translate the PA-VA mapping for EFI runtime services. The issue arises because the PRMT is finding a block of type EFI_CONVENTIONAL_MEMORY, which is not appropriate for runtime services as described in Section 2.2.2 (Runtime Services) of the UEFI Specification [1]. Since the PRM handler is a type of runtime service, this causes an exception when the PRM handler is called. [Firmware Bug]: Unable to handle paging request in EFI runtime service WARNING: CPU: 22 PID: 4330 at drivers/firmware/efi/runtime-wrappers.c:341 __efi_queue_work+0x11c/0x170 Call trace: Let PRMT find a block with EFI_MEMORY_RUNTIME for PRM handler and PRM context. If no suitable block is found, a warning message will be printed, but the procedure continues to manage the next PRM handler. However, if the PRM handler is actually called without proper allocation, it would result in a failure during error handling. By using the correct memory types for runtime services, ensure that the PRM handler and the context are properly mapped in the virtual address space during runtime, preventing the paging request error. The issue is really that only memory that has been remapped for runtime by the firmware can be used by the PRM handler, and so the region needs to have the EFI_MEMORY_RUNTIME attribute. [ rjw: Subject and changelog edits ]
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于于ACPI PRM处理程序在寻找EFI_MEMORY_RUNTIME块时，错误地找到了EFI_CONVENTIONAL_MEMORY类型的块。
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 cefc7ca46235f01d5233e3abd4b79452af01d9e9 ~ 8df52929530839e878e6912e33348b54101e3250 -
Linux Linux 5.14 -

II. Public POCs for CVE-2024-50141

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III. Intelligence Information for CVE-2024-50141

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Patches & Fixes for CVE-2024-50141 (4)

Same Patch Batch · Linux · 2024-11-07 · 34 CVEs total

CVE-2024-50162 9.8 CRITICAL bpf: devmap: provide rxq after redirect
CVE-2024-50154 9.8 CRITICAL tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().
CVE-2024-50152 9.8 CRITICAL smb: client: fix possible double free in smb2_set_ea()
CVE-2024-50139 7.9 HIGH KVM: arm64: Fix shift-out-of-bounds bug
CVE-2024-50151 7.8 HIGH smb: client: fix OOBs when building SMB2_IOCTL request
CVE-2024-50161 7.8 HIGH bpf: Check the remaining info_cnt before repeating btf fields
CVE-2024-50158 7.8 HIGH RDMA/bnxt_re: Fix out of bound check
CVE-2024-50164 7.8 HIGH bpf: Fix overloading of MEM_UNINIT's meaning
CVE-2024-50165 7.8 HIGH bpf: Preserve param->string when parsing mount options
CVE-2024-50150 7.8 HIGH usb: typec: altmode should keep reference to parent
CVE-2024-50149 7.8 HIGH drm/xe: Don't free job in TDR
CVE-2024-50143 7.8 HIGH udf: fix uninit-value use in udf_get_fileshortad
CVE-2024-50145 7.5 HIGH octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()
CVE-2024-50170 7.5 HIGH net: bcmasp: fix potential memory leak in bcmasp_xmit()
CVE-2024-50159 7.0 HIGH firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()
CVE-2024-50156 drm/msm: Avoid NULL dereference in msm_disp_state_print_regs()
CVE-2024-50167 be2net: fix potential memory leak in be_xmit()
CVE-2024-50166 fsl/fman: Fix refcount handling of fman-related devices
CVE-2024-50168 net/sun3_82586: fix potential memory leak in sun3_82586_send_packet()
CVE-2024-50169 vsock: Update rx_bytes on read_skb()

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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