Vulnerability identifier: #VU94972
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: 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 cxl_mem_probe() function in drivers/cxl/mem.c, within the cxl_pmem_region_alloc() function in drivers/cxl/core/region.c, within the match_nvdimm_bridge() and cxlmd_release_nvdimm() functions in drivers/cxl/core/pmem.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/1d064e4fbebcf5b18dc10c1f3973487eb163b600
http://git.kernel.org/stable/c/84ec985944ef34a34a1605b93ce401aa8737af96
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.