CVE-2024-46738

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-09-18. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

VMCI: Fix use-after-free when removing resource in vmci_resource_remove()

When removing a resource from vmci_resource_table in vmci_resource_remove(), the search is performed using the resource handle by comparing context and resource fields.

It is possible though to create two resources with different types but same handle (same context and resource fields).

When trying to remove one of the resources, vmci_resource_remove() may not remove the intended one, but the object will still be freed as in the case of the datagram type in vmci_datagram_destroy_handle(). vmci_resource_table will still hold a pointer to this freed resource leading to a use-after-free vulnerability.

BUG: KASAN: use-after-free in vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline] BUG: KASAN: use-after-free in vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147 Read of size 4 at addr ffff88801c16d800 by task syz-executor197/1592 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x82/0xa9 lib/dump_stack.c:106 print_address_description.constprop.0+0x21/0x366 mm/kasan/report.c:239 __kasan_report.cold+0x7f/0x132 mm/kasan/report.c:425 kasan_report+0x38/0x51 mm/kasan/report.c:442 vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline] vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147 vmci_qp_broker_detach+0x89a/0x11b9 drivers/misc/vmw_vmci/vmci_queue_pair.c:2182 ctx_free_ctx+0x473/0xbe1 drivers/misc/vmw_vmci/vmci_context.c:444 kref_put include/linux/kref.h:65 [inline] vmci_ctx_put drivers/misc/vmw_vmci/vmci_context.c:497 [inline] vmci_ctx_destroy+0x170/0x1d6 drivers/misc/vmw_vmci/vmci_context.c:195 vmci_host_close+0x125/0x1ac drivers/misc/vmw_vmci/vmci_host.c:143 __fput+0x261/0xa34 fs/file_table.c:282 task_work_run+0xf0/0x194 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x184/0x189 kernel/entry/common.c:187 exit_to_user_mode_prepare+0x11b/0x123 kernel/entry/common.c:220 __syscall_exit_to_user_mode_work kernel/entry/common.c:302 [inline] syscall_exit_to_user_mode+0x18/0x42 kernel/entry/common.c:313 do_syscall_64+0x41/0x85 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x6e/0x0

This change ensures the type is also checked when removing the resource from vmci_resource_table in vmci_resource_remove().

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

September 18, 2024

Last Modified

November 3, 2025

References (10)

Vendor Advisories for CVE-2024-46738(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-bluefield (5.4.0.1094.90) @ focal2026-05-23ubuntu
ubuntulinux-tools-oracle-edge (5.4.0.1134.143~18.04.1) @ bionic2026-05-23ubuntu
ubuntulinux-tools-azure-edge (5.4.0.1140.147~18.04.1) @ bionic2026-05-23ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.200.196) @ focal2026-05-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1038.42) @ jammy2026-05-23ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.231.243~16.04.1) @ xenial2026-05-23ubuntu
ubuntulinux-tools-oracle (4.15.0.1137.148~16.04.1) @ xenial2026-05-23ubuntu
ubuntulinux-tools-iot (5.4.0.1044.42) @ focal2026-05-23ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1119.149) @ focal2026-05-23ubuntu
ubuntulinux-tools-azure (4.15.0.1183.198~14.04.1) @ trusty2026-05-23ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1075.73) @ jammy2026-05-23ubuntu
ubuntulinux-tools-aws-lts-22.04 (5.15.0.1072.72) @ jammy2026-05-23ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1067.67) @ jammy2026-05-23ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.261.295~14.04.1) @ trusty2026-05-23ubuntu
ubuntulinux-virtual-hwe-24.04 (6.8.0-50.51) @ noble2026-05-23ubuntu
ubuntulinux-tools-gkeop-6.8 (6.8.0-1002.4) @ noble2026-05-23ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1078.87~20.04.1) @ focal2026-05-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k (6.8.0-1019.21.1) @ noble2026-05-23ubuntu
ubuntulinux-tools-azure (6.8.0-1020.23) @ noble2026-05-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-50.51~22.04.1) @ jammy2026-05-23ubuntu
linuxKernel @ 4.19.322—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(20)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2024-46738?
CVE-2024-46738 is a high vulnerability published on September 18, 2024. In the Linux kernel, the following vulnerability has been resolved: VMCI: Fix use-after-free when removing resource in vmciresourceremove() When removing a resource from vmciresourcetable in vmciresourceremove(), the search is performed using the resource handle by comparing context and resource…
When was CVE-2024-46738 disclosed?
CVE-2024-46738 was first published in the National Vulnerability Database on September 18, 2024, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-46738 actively exploited?
CVE-2024-46738 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.2% of all scored CVEs.
What is the CVSS score of CVE-2024-46738?
CVE-2024-46738 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-46738?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-46738, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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