CVE-2022-4127 is a NULL pointer dereference vulnerability in the Linux kernel's io_files_update_with_index_alloc function. A local attacker can exploit this flaw to crash the system, leading to a denial of service. Rated Medium (CVSS 5.5), it requires local access and low privileges, with no user interaction needed. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* | ||
5.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | ||
5.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | ||
5.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* | ||
5.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2022-4127
Dec 13, 2022A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc. A local user could use this flaw to potentially crash the system causing a denial of service.
Nov 8, 2022kernel: io_uring: NULL pointer dereference in io_files_update_with_index_alloc
Jul 9, 2022