#VU90597 NULL pointer dereference in Linux kernel - CVE-2024-26738
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90597
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-26738
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the init_phb_dynamic() and remove_phb_dynamic() functions in arch/powerpc/platforms/pseries/pci_dlpar.c, within the spapr_tce_iommu_probe_device(), ppc_iommu_register_device() and spapr_tce_setup_phb_iommus_initcall() functions in arch/powerpc/kernel/iommu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765
- https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25
- https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8