Security readout for executives and security teams
Plain-English summary
A flaw in Linux's AMD display driver can access memory outside the intended array when no valid watermark sets exist. A local user with limited privileges may be able to disrupt the system or alter protected data. The supplied CVSS score is 7.1; no confidentiality impact is claimed.
Executive priority
Treat as a high-priority local privilege-boundary issue, especially on multi-user AMD graphics systems. It does not warrant internet-emergency handling based on the supplied evidence, but timely kernel patching is appropriate because integrity and availability impacts are rated high.
Technical view
The AMD DRM display code accessed reader_wm_sets[num_valid_sets - 1] without first ensuring num_valid_sets was positive, allowing a negative array index and overrun. The kernel fix adds the missing bounds check. The CVSS vector indicates local, low-complexity, low-privilege exploitation with high integrity and availability impact.
Likely exposure
Exposure is limited to Linux systems running affected kernel code in the AMD display stack. It is not described as remotely exploitable. The supplied version data is ambiguous, so determine exposure using distribution advisories and whether the AMD display driver is present and active.
Exploitation context
The source bundle does not establish active exploitation, and the CVE is not listed as KEV. It also provides no evidence of a public exploit. Successful exploitation requires local access with low privileges according to the supplied CVSS vector.
Researcher notes
Coverity identified an overrun caused by indexing with num_valid_sets minus one when the count could be zero. Multiple stable-kernel commits are referenced, likely reflecting branch-specific backports. Exact vulnerable ranges and practical exploitability are not fully established by the supplied material; validate against the relevant distribution's package advisory.
Mitigation direction
- Install the vendor-supported kernel update containing the relevant stable-branch fix.
- Reboot affected systems so the corrected kernel becomes active.
- Consult distribution guidance where the supplied affected-version data is ambiguous.
- Prioritize shared workstations or other systems where untrusted users have local access.
Validation and detection
- Inventory Linux systems using AMD graphics and the AMD display driver.
- Record each running kernel version, not only the installed package version.
- Compare versions against the applicable distribution advisory and stable-branch fix.
- After updating and rebooting, confirm the corrected kernel is running.
- Monitor affected systems for display-driver faults, crashes, or unexplained instability.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2024-46815 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H1.85.2LinuxVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/a72d4996409569027b4609414a14a87679b12267CVE reference, Linux
- https://git.kernel.org/stable/c/7c47dd2e92341f2989ab73dbed07f8894593ad7bCVE reference, Linux
- https://git.kernel.org/stable/c/c4a7f7c0062fe2c73f70bb7e335199e25bd71492CVE reference, Linux
- https://git.kernel.org/stable/c/b36e9b3104c4ba0f2f5dd083dcf6159cb316c996CVE reference, Linux
- https://git.kernel.org/stable/c/21f9cb44f8c60bf6c26487d428b1a09ad3e8aebfCVE reference, Linux
- https://git.kernel.org/stable/c/6a4a08e45e614cfa7a56498cdfaeb7fae2f07fa0CVE reference, Linux
- https://git.kernel.org/stable/c/b38a4815f79b87efb196cd5121579fc51e29a7fbCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.htmlCVE reference, CVE
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.