CVE-2023-53366 is a NULL pointer dereference vulnerability in the Linux kernel's block subsystem, specifically affecting polled I/O operations. It occurs when two tasks share a poll queue, and one task completes I/O for another, leading to a NULL bio->bi_bdev pointer. This can cause a system crash. 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 availability impact (system crash) without affecting confidentiality or integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.15, < 6.1.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.2.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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.