CVE-2024-46786

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
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF

The fscache_cookie_lru_timer is initialized when the fscache module is inserted, but is not deleted when the fscache module is removed. If timer_reduce() is called before removing the fscache module, the fscache_cookie_lru_timer will be added to the timer list of the current cpu. Afterwards, a use-after-free will be triggered in the softIRQ after removing the fscache module, as follows:

================================================================== BUG: unable to handle page fault for address: fffffbfff803c9e9 PF: supervisor read access in kernel mode PF: error_code(0x0000) - not-present page PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067 PTE 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W 6.11.0-rc3 #855 Tainted: [W]=WARN RIP: 0010:__run_timer_base.part.0+0x254/0x8a0 Call Trace: tmigr_handle_remote_up+0x627/0x810 __walk_groups.isra.0+0x47/0x140 tmigr_handle_remote+0x1fa/0x2f0 handle_softirqs+0x180/0x590 irq_exit_rcu+0x84/0xb0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 default_idle_call+0x38/0x60 do_idle+0x2b5/0x300 cpu_startup_entry+0x54/0x60 start_secondary+0x20d/0x280 common_startup_64+0x13e/0x148 Modules linked in: [last unloaded: netfs] ==================================================================

Therefore delete fscache_cookie_lru_timer when removing the fscahe module.

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
13.1%
KEV
Not listed

Published

September 18, 2024

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Jul 14, 2026
No patch confirmed yet.
generic

SSA-019113

https://cert-portal.siemens.com/productcert/html/ssa-019113.html
generic

fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e0d724932ad12e3528f4ce97fc0f6078d0cce4bc
generic

fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c1fc36d5470335546c45799d94d7bb2cbc09e8b7
generic

fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72a6e22c604c95ddb3b10b5d3bb85b6ff4dbc34f
generic

fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0a11262549ac2ac6fb98c7cd40a67136817e5a52

Vendor Advisories for CVE-2024-46786(3)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-50.51~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k (6.8.0-1019.21.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gkeop-6.8 (6.8.0-1002.4) @ noble2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1017.18~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure (6.8.0-1020.23) @ noble2026-05-21ubuntu
redhatkernel-0:5.14.0-570.12.1.el9_62025-05-13redhat
linuxKernel @ 6.1.160—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

(5)

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 12× in last 7d / 46× 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 122 total refreshes for this CVE.

  1. 2026-07-23 14:17 UTCEPSS rescore
  2. 2026-07-23 02:41 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  18. 2026-07-14 13:19 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  19. 2026-07-14 12:40 UTCMITRE cvelistV5
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Frequently asked(5)

What is CVE-2024-46786?
CVE-2024-46786 is a high vulnerability published on September 18, 2024. In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscachecookielru_timer when fscache exits to avoid UAF The fscachecookielru_timer is initialized when the fscache module is inserted, but is not deleted when the fscache module is removed. If timer_reduce() is…
When was CVE-2024-46786 disclosed?
CVE-2024-46786 was first published in the National Vulnerability Database on September 18, 2024, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-46786 actively exploited?
CVE-2024-46786 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-46786?
CVE-2024-46786 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-46786?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-46786, 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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