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CVE Record

CVE-2024-35890: gro: fix ownership transfer

In the Linux kernel, the following vulnerability has been resolved: gro: fix ownership transfer If packets are GROed with fraglist they might be segmented later on and continue their journey in the stack. In skb_segment_list those skbs can be reused as-is. This is an issue as their destructor was removed in skb_gro_receive_list but not the reference to their socket, and then they can't be orphaned. Fix this by also removing the reference to the socket. For example this could be observed, kernel BUG at include/linux/skbuff.h:3131! (skb_orphan) RIP: 0010:ip6_rcv_core+0x11bc/0x19a0 Call Trace: ipv6_list_rcv+0x250/0x3f0 __netif_receive_skb_list_core+0x49d/0x8f0 netif_receive_skb_list_internal+0x634/0xd40 napi_complete_done+0x1d2/0x7d0 gro_cell_poll+0x118/0x1f0 A similar construction is found in skb_gro_receive, apply the same change there.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux kernel networking flaw can mishandle socket ownership when GRO fraglist packets are later segmented. The supplied record reports a possible kernel BUG and rates potential confidentiality, integrity, and availability impact as high. Exploitation requires local access with low privileges according to the CVSS vector; no active exploitation evidence is provided.

Executive priority

Treat this as a high-priority kernel maintenance issue, especially on shared Linux hosts or systems running untrusted workloads. Schedule vendor-approved updates promptly, but avoid declaring an emergency based solely on the score: the supplied evidence indicates local access is required and does not establish active exploitation.

Technical view

The GRO receive paths remove an skb destructor without also clearing its socket reference. Reused skbs therefore cannot be orphaned during later segmentation, potentially triggering a kernel BUG in skb_orphan. The upstream resolution removes the socket reference in both skb_gro_receive_list and the similar skb_gro_receive path.

Likely exposure

Exposure applies to Linux systems running affected kernel builds where GRO fraglist packet processing is reachable. The bundle lists affected 5.15, 5.15.154, 6.1.85, 6.6.26, 6.8.5, and 6.9 entries, but its version structure is ambiguous. Confirm status against the distribution or appliance vendor's exact build.

Exploitation context

The CVSS vector describes a local, low-complexity attack requiring low privileges and no user interaction, with high potential impact. The bundle marks this CVE as absent from KEV and provides no evidence of exploitation in the wild, public exploit availability, or reliable privilege escalation.

Researcher notes

The observable failure is a kernel BUG associated with stale skb socket ownership after GRO fraglist segmentation. The record supplies multiple stable-tree fixes but no CWE, exploit analysis, or demonstrated attack outcome. Package backports may make upstream version comparisons unreliable; validate using vendor build metadata and commit inclusion.

Mitigation direction

  • Upgrade to a vendor-supported kernel release containing the GRO ownership-transfer fix.
  • Check distribution or appliance advisories for the fixed package corresponding to the deployed kernel.
  • Prioritize multi-user systems where untrusted users or workloads have local access.
  • Use vendor-recommended mitigations if an immediate kernel update is unavailable.

Validation and detection

  • Record each system's exact kernel and vendor package version.
  • Confirm the vendor package changelog references CVE-2024-35890 or a listed stable fix commit.
  • Verify the updated kernel is running after installation and reboot.
  • Review kernel logs for matching skb_orphan BUG traces, while recognizing absence does not prove safety.
Prepared
Confidence
medium
Sources
8

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2024-35890 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
2ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-35890Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux5e10da5385d20c4bae587bc2921e5fdd9655d5fc, 5e10da5385d20c4bae587bc2921e5fdd9655d5fc, 5e10da5385d20c4bae587bc2921e5fdd9655d5fc, 5e10da5385d20c4bae587bc2921e5fdd9655d5fc, 5e10da5385d20c4bae587bc2921e5fdd9655d5fcunaffected
LinuxLinux5.15, 0, 5.15.154, 6.1.85, 6.6.26, 6.8.5, 6.9affected
Weakness

CWE details

No CWE listed

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