CVE-2024-50288

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: vivid: fix buffer overwrite when using > 32 buffers

The maximum number of buffers that can be requested was increased to 64 for the video capture queue. But video capture used a must_blank array that was still sized for 32 (VIDEO_MAX_FRAME). This caused an out-of-bounds write when using buffer indices >= 32.

Create a new define MAX_VID_CAP_BUFFERS that is used to access the must_blank array and set max_num_buffers for the video capture queue.

This solves a crash reported by:

https://bugzilla.kernel.org/show_bug.cgi?id=219258

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcea70ed416b428f8214be196d62cc7ffaa11f1b8 < e6bacd8f2178b22859fe6d9f755f19dfcd9d3862affected
LinuxLinuxcea70ed416b428f8214be196d62cc7ffaa11f1b8 < 96d8569563916fe2f8fe17317e20e43f54f9ba4baffected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux6.11.8 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References