Vulnerability identifier: #VU101225
Vulnerability risk: Low
CVSSv4.0: 4.3 [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:
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 nilfs_grab_buffer() function in fs/nilfs2/page.c, within the nilfs_mdt_create_block() function in fs/nilfs2/mdt.c, within the nilfs_gccache_submit_read_data() function in fs/nilfs2/gcinode.c, within the nilfs_btnode_create_block() and nilfs_btnode_submit_block() functions in fs/nilfs2/btnode.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
https://git.kernel.org/stable/c/2026559a6c4ce34db117d2db8f710fe2a9420d5a
https://git.kernel.org/stable/c/86b19031dbc79abc378dfae357f6ea33ebeb0c95
https://git.kernel.org/stable/c/b0e4765740040c44039282057ecacd7435d1d2ba
https://git.kernel.org/stable/c/ffc440a76a0f476a7e6ea838ec0dc8e9979944d1
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.