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CVE-2026-23039— drm/gud: fix NULL fb and crtc dereferences on USB disconnect

EPSS 0.01% · P2
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I. Basic Information for CVE-2026-23039

Vulnerability Information
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Vulnerability Title
drm/gud: fix NULL fb and crtc dereferences on USB disconnect
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix NULL fb and crtc dereferences on USB disconnect On disconnect drm_atomic_helper_disable_all() is called which sets both the fb and crtc for a plane to NULL before invoking a commit. This causes a kernel oops on every display disconnect. Add guards for those dereferences.
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USB断开连接时未对空指针进行防护，可能导致内核崩溃。
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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 73cfd166e045769a1b42d36897accaa6e06b8102 ~ a255ec07f91d4c73a361a28b7a3d82f5710245f1 -
LinuxLinux 6.18 -

II. Public POCs for CVE-2026-23039

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III. Intelligence Information for CVE-2026-23039

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Same Patch Batch · Linux · 2026-01-31 · 37 CVEs total

CVE-2026-23018btrfs: release path before initializing extent tree in btrfs_read_locked_inode()
CVE-2025-71186dmaengine: stm32: dmamux: fix device leak on route allocation
CVE-2025-71185dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation
CVE-2026-23024idpf: fix memory leak of flow steer list on rmmod
CVE-2026-23023idpf: fix memory leak in idpf_vport_rel()
CVE-2026-23022idpf: fix memory leak in idpf_vc_core_deinit()
CVE-2026-23021net: usb: pegasus: fix memory leak in update_eth_regs_async()
CVE-2026-23020net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
CVE-2026-23019net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
CVE-2025-71187dmaengine: sh: rz-dmac: fix device leak on probe failure
CVE-2026-23017idpf: fix error handling in the init_task on load
CVE-2026-23016inet: frags: drop fraglist conntrack references
CVE-2026-23015gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths
CVE-2025-71184btrfs: fix NULL dereference on root when tracing inode eviction
CVE-2025-71183btrfs: always detect conflicting inodes when logging inode refs
CVE-2025-71182can: j1939: make j1939_session_activate() fail if device is no longer registered
CVE-2025-71181rust_binder: remove spin_lock() in rust_shrink_free_page()
CVE-2025-71180counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
CVE-2026-23029LoongArch: KVM: Fix kvm_device leak in kvm_eiointc_destroy()
CVE-2026-23037can: etas_es58x: allow partial RX URB allocation to succeed

Showing top 20 of 37 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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