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CVE-2024-35247— fpga: region: add owner module and take its refcount

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 fpga:region 模块存在引用计数错误。

AI Predicted 7.8 Difficulty: Hard EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 0fa20cdfcc1f68847cdfc47824476301eedc8297< 26e6e25d742e29885cf44274fcf6b744366c4702 affected
0fa20cdfcc1f68847cdfc47824476301eedc8297< 9b4eee8572dcf82b2ed17d9a328c7fb87df2f0e8 affected
0fa20cdfcc1f68847cdfc47824476301eedc8297< 75a001914a8d2ccdcbe4b8cc7e94ac71d0e66093 affected
0fa20cdfcc1f68847cdfc47824476301eedc8297< 4d7d12b643c00e7eea51b49a60a2ead182633ec8 affected
0fa20cdfcc1f68847cdfc47824476301eedc8297< 2279c09c36165ccded4d506d11a7714e13b56019 affected
0fa20cdfcc1f68847cdfc47824476301eedc8297< b7c0e1ecee403a43abc89eb3e75672b01ff2ece9 affected
4.10 affected
< 4.10 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-35247

Vulnerability Information
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Vulnerability Title
fpga: region: add owner module and take its refcount
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fpga: region: add owner module and take its refcount The current implementation of the fpga region assumes that the low-level module registers a driver for the parent device and uses its owner pointer to take the module's refcount. This approach is problematic since it can lead to a null pointer dereference while attempting to get the region during programming if the parent device does not have a driver. To address this problem, add a module owner pointer to the fpga_region struct and use it to take the module's refcount. Modify the functions for registering a region to take an additional owner module parameter and rename them to avoid conflicts. Use the old function names for helper macros that automatically set the module that registers the region as the owner. This ensures compatibility with existing low-level control modules and reduces the chances of registering a region without setting the owner. Also, update the documentation to keep it consistent with the new interface for registering an fpga region.
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 fpga:region 模块存在引用计数错误。
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 0fa20cdfcc1f68847cdfc47824476301eedc8297 ~ 26e6e25d742e29885cf44274fcf6b744366c4702 -
Linux Linux 4.10 -

II. Public POCs for CVE-2024-35247

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III. Intelligence Information for CVE-2024-35247

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Other References for CVE-2024-35247 (6)

Same Patch Batch · Linux · 2024-06-24 · 14 CVEs total

CVE-2024-38384 7.8 HIGH blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
CVE-2024-38663 7.8 HIGH blk-cgroup: fix list corruption from resetting io stat
CVE-2024-39292 7.8 HIGH um: Add winch to winch_handlers before registering winch IRQ
CVE-2024-32936 7.8 HIGH media: ti: j721e-csi2rx: Fix races while restarting DMA
CVE-2024-34027 7.8 HIGH f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
CVE-2024-33847 7.1 HIGH f2fs: compress: don't allow unaligned truncation on released compress inode
CVE-2024-38664 drm: zynqmp_dpsub: Always register bridge
CVE-2024-38667 riscv: prevent pt_regs corruption for secondary idle threads
CVE-2024-39291 drm/amdgpu: Fix buffer size in gfx_v9_4_3_init_ cp_compute_microcode() and rlc_microcode()
CVE-2024-34030 PCI: of_property: Return error for int_map allocation failure
CVE-2024-36479 fpga: bridge: add owner module and take its refcount
CVE-2024-37021 fpga: manager: add owner module and take its refcount
CVE-2024-37026 drm/xe: Only use reserved BCS instances for usm migrate exec queue

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-35247

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