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CVE-2025-40191— drm/amdkfd: Fix kfd process ref leaking when userptr unmapping

EPSS 0.03% · P8
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I. Basic Information for CVE-2025-40191

Vulnerability Information
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Vulnerability Title
drm/amdkfd: Fix kfd process ref leaking when userptr unmapping
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd process ref leaking when userptr unmapping kfd_lookup_process_by_pid hold the kfd process reference to ensure it doesn't get destroyed while sending the segfault event to user space. Calling kfd_lookup_process_by_pid as function parameter leaks the kfd process refcount and miss the NULL pointer check if app process is already destroyed.
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kfd进程引用泄漏，可能导致进程管理错误。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 2d274bf7099bc5e95fabaa93f23d0eb2977187ad ~ 60f6112fc9b3ba0eae519f10702c0c13bab45742 -
LinuxLinux 6.16 -

II. Public POCs for CVE-2025-40191

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III. Intelligence Information for CVE-2025-40191

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

CVE-2025-40175idpf: cleanup remaining SKBs in PTP flows
CVE-2025-40170net: use dst_dev_rcu() in sk_setup_caps()
CVE-2025-40171nvmet-fc: move lsop put work to nvmet_fc_ls_req_op
CVE-2025-40167ext4: detect invalid INLINE_DATA + EXTENTS flag combination
CVE-2025-40164usbnet: Fix using smp_processor_id() in preemptible code warnings
CVE-2025-40162ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails
CVE-2025-40163sched/deadline: Stop dl_server before CPU goes offline
CVE-2025-40161mailbox: zynqmp-ipi: Fix SGI cleanup on unbind
CVE-2025-40166drm/xe/guc: Check GuC running state before deregistering exec queue
CVE-2025-40174x86/mm: Fix SMP ordering in switch_mm_irqs_off()
CVE-2025-40172accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages()
CVE-2025-40176tls: wait for pending async decryptions if tls_strp_msg_hold fails
CVE-2025-40173net/ip6_tunnel: Prevent perpetual tunnel growth
CVE-2025-40177accel/qaic: Fix bootlog initialization ordering
CVE-2025-40178pid: Add a judgment for ns null in pid_nr_ns
CVE-2025-40179ext4: verify orphan file size is not too big
CVE-2025-40180mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop
CVE-2025-40181x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP
CVE-2025-40183bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}
CVE-2025-40182crypto: skcipher - Fix reqsize handling

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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