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CVE-2025-21990— drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags

EPSS 0.05% · P15
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I. Basic Information for CVE-2025-21990

Vulnerability Information
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Vulnerability Title
drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags PRT BOs may not have any backing store, so bo->tbo.resource will be NULL. Check for that before dereferencing. (cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)
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，该漏洞源于未检查BO的backing store，可能导致空指针取消引用。
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 0cce5f285d9ae81c33993f3270fe77f5e74a69ab ~ 72235808eabea93055b459a63443bd9cd6b08aa4 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2025-21990

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III. Intelligence Information for CVE-2025-21990

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Same Patch Batch · Linux · 2025-04-02 · 8 CVEs total

CVE-2025-21994ksmbd: fix incorrect validation for num_aces field of smb_acl
CVE-2025-21993iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic()
CVE-2025-21992HID: ignore non-functional sensor in HP 5MP Camera
CVE-2025-21991x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes
CVE-2025-21989drm/amd/display: fix missing .is_two_pixels_per_container
CVE-2025-21988fs/netfs/read_collect: add to next->prev_donated
CVE-2025-21987drm/amdgpu: init return value in amdgpu_ttm_clear_buffer

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21990

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