Security readout for executives and security teams
Plain-English summary
Affected Linux systems using the MANA network driver can crash while receiving a packet slightly larger than expected. This creates a remotely reachable denial-of-service risk, disrupting workloads or hosts. The available evidence indicates an availability impact, not data theft or modification.
Executive priority
Treat as high priority for network-reachable workloads using MANA because successful triggering can crash the kernel and interrupt service without authentication. Patch promptly through supported kernel channels. Systems not using MANA are not shown as exposed by the supplied evidence.
Technical view
MANA aligned the receive buffer DMA size to 64 bytes, allowing a packet slightly larger than MTU+14 to reach skb_put and trigger skb_over_panic in mana_poll. The kernel then raises a BUG. The fix removes this alignment so the NIC marks oversized receives as CQE_RX_TRUNCATED and drops them.
Likely exposure
Exposure requires an affected Linux kernel and use of the MANA receive driver. Network-reachable systems processing untrusted traffic are the primary concern. The bundle identifies affected upstream versions, but does not provide complete distribution package mappings or configuration-specific exposure details.
Exploitation context
CVSS 3.1 rates this 7.5: network-accessible, low complexity, unauthenticated, and requiring no user interaction, with availability impact only. The bundle reports KEV as false and provides no cited evidence of active exploitation or a public exploit.
Researcher notes
The described fault is an receive-buffer sizing mismatch rather than a confidentiality or integrity issue. The supplied trace places the panic in skb_put through mana_poll. Exact vulnerable and fixed distribution builds require vendor mapping; the listed version data alone should not be treated as a complete package matrix.
Mitigation direction
- Apply a vendor-supported kernel update incorporating the relevant cited stable fix.
- Check Linux distributor guidance for the exact fixed package or backport applicable to each system.
- Prioritize network-reachable hosts that actively use the MANA driver.
Validation and detection
- Inventory running kernel versions and identify systems using the MANA network driver.
- Confirm the installed kernel contains a cited fix or documented distributor backport.
- Review kernel logs for skb_over_panic, kernel BUG, and mana_poll indicators.
- After updating, verify the remediated kernel is running following any required restart.
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
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CVE-2024-35901 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6LinuxVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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/ca58927b00385005f488b6a9905ced7a4f719aadCVE reference, Linux
- https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932bCVE reference, Linux
- https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246CVE 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.