Security readout for executives and security teams
Plain-English summary
A flaw in the Linux DaVinci MMC driver can let an oversized transfer exceed an internal scatter-gather buffer limit, causing a kernel panic. A successful trigger can crash the system. The supplied CVSS rating is 7.8 (high) and assumes local access with low privileges, so exposed systems deserve prompt review.
Executive priority
Prioritize remediation for operationally important devices that use this MMC driver, especially where untrusted or lightly trusted users have local access. Treat it as a high-severity availability risk, while recognizing that the supplied evidence does not confirm exploitation or demonstrate data theft.
Technical view
The davinci_mmc transmit path failed to constrain the requested byte count to sg_miter length. When the transfer exceeded that length, the kernel could panic. The referenced Linux stable changes cap transmitted bytes at sgm->length. The supplied affected-version data mentions Linux 6.9, 6.9.10, and 6.10, but its range encoding is ambiguous.
Likely exposure
Exposure is most likely on systems running an affected Linux kernel where the DaVinci MMC driver is present and used. The CVSS vector indicates a local, low-privileged attack path without user interaction. The bundle does not establish exposure on systems lacking this driver or relevant hardware.
Exploitation context
The supplied bundle marks this CVE as absent from KEV and provides no evidence of active exploitation or a public exploit. The documented outcome is a kernel panic from an oversized transfer. Although the CVSS vector assigns high confidentiality, integrity, and availability impacts, the narrative evidence only explains the crash mechanism.
Researcher notes
The core defect is a missing bounds check between requested transmit size and sg_miter length. The stated correction limits transmitted bytes to sgm->length. Researchers should review downstream backports and driver reachability without assuming all Linux installations are affected. Evidence supplied here does not explain how confidentiality or integrity impacts would occur.
Mitigation direction
- Install a vendor-supported kernel containing the referenced stable fix or an equivalent backport.
- Check distribution or device-vendor guidance for exact package versions because the supplied version range is ambiguous.
- Prioritize systems that actively use the DaVinci MMC driver or related hardware.
- Restrict unnecessary local access until affected systems are updated.
Validation and detection
- Inventory kernel versions on systems using DaVinci MMC hardware or the davinci_mmc driver.
- Confirm whether vendor kernel packages include either referenced stable correction or an equivalent backport.
- Recheck affected systems after updating and record the installed kernel package version.
- Use vendor advisories to resolve applicability where custom or downstream kernels differ from upstream releases.
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-2024-41026 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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/c561c4ecce712f94b442db5960e281f13b28df2eCVE reference, Linux
- https://git.kernel.org/stable/c/16198eef11c1929374381d7f6271b4bf6aa44615CVE reference, Linux
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.