Use-after-free in Linux kernel block

1) Use-after-free

EUVDB-ID: #VU102914

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-41149

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the blk_mq_alloc_disk_for_queue() and blk_mq_alloc_and_init_hctx() functions in block/blk-mq.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/85672ca9ceeaa1dcf2777a7048af5f4aee3fd02b
https://git.kernel.org/stable/c/b5792c162dcf6197bf3d2de2be6c8169435b73d0
https://git.kernel.org/stable/c/ee18012c80155f6809522804099621070c69ec72

Q & A

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.