SB2026100797 - NULL pointer dereference in Linux kernel amd amdgpu driver
Published: October 7, 2026
Security Bulletin ID
SB2026100797
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-98270)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in nbio_v7_9_handle_ras_controller_intr_no_bifring() when handling an interrupt before the RAS context or PCIE_BIF RAS object is available. A local user can exploit an interrupt occurring during the initialization window to cause a denial of service.
The interrupt handler executes in hard-IRQ context.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/315c22712715491f0dfafdaf2c2b437540e68702
- https://git.kernel.org/stable/c/37583946d8751f8e285c467d770ac0b609b82a23
- https://git.kernel.org/stable/c/723d4dc628d764b19cf9efca14b82cca5ff020c9
- https://git.kernel.org/stable/c/b7c7f07a40037514f8e890aa00f8d7b196d680cf
- https://git.kernel.org/stable/c/fc5f845a291fc8175e6857cd6ad042818da192e8