Linux Kernel virtio virtio_gpu_user_framebuffer_create null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00-

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel. This impacts the function virtio_gpu_user_framebuffer_create of the component virtio. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2026-98404. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is the function virtio_gpu_user_framebuffer_create of the component virtio. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create() Smatch complains that returning a NULL here will lead to a NULL pointer dereference in drm_mode_addfb2(). Return an error pointer instead.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-98404 since 09/25/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/14/2026).

Applying the patch 975f3cf302bb7d7336df4c630a7c07e12780ad10/07de0b31dd64094cd7d25729beaf2ecae74daa72/5eda6cda0031ba17559d56882353be39e568ec09/3fe8a33715265ecb24ca0bcd0a575c926da4277c/974845d2535a250b180e62f9ed50284f312c01a3/45dc2788a5b0e1e2824d1f98af521bd3acc340d7/f1050a7d365283678b253828739d3866ae546a72/94579f24e2b526a04eb41050af0ba018c6f528e7 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 975f3cf302bb7d7336df4c630a7c07e12780ad10/07de0b31dd64094cd7d25729beaf2ecae74daa72/5eda6cda0031ba17559d56882353be39e568ec09/3fe8a33715265ecb24ca0bcd0a575c926da4277c/974845d2535a250b180e62f9ed50284f312c01a3/45dc2788a5b0e1e2824d1f98af521bd3acc340d7/f1050a7d365283678b253828739d3866ae546a72/94579f24e2b526a04eb41050af0ba018c6f528e7

Timelineinfo

09/25/2026 CVE reserved
10/14/2026 +19 days Advisory disclosed
10/14/2026 +0 days VulDB entry created
10/14/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-98404 (🔒)
GCVE (CVE): GCVE-0-2026-98404
GCVE (VulDB): GCVE-100-419857

Entryinfo

Created: 10/14/2026 16:01
Changes: 10/14/2026 16:01 (57)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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