CVE-2022-49796 is a null-pointer dereference vulnerability in the Linux kernel's tracing subsystem, specifically within the kprobe functionality. This flaw affects Linux kernel versions and can lead to a system crash (denial of service). The vulnerability arises when a kprobe event's associated resource is released, but a pointer to that resource is not properly nulled, leading to an attempt to access invalid memory. The vulnerability has a CVSS v3.1 score of 5.5 (MEDIUM), indicating a local attack vector with low attack complexity, requiring low privileges, and resulting in high impact to availability (system crash). There is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, which is typical for a large percentage of reported vulnerabilities.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.6, < 5.10.156CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.80CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 6.0.10CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | ||
6.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* |
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.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.