CVE-2024-47696

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-10-21. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency

In the commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs"), the function flush_workqueue is invoked to flush the work queue iwcm_wq.

But at that time, the work queue iwcm_wq was created via the function alloc_ordered_workqueue without the flag WQ_MEM_RECLAIM.

Because the current process is trying to flush the whole iwcm_wq, if iwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current process is not reclaiming memory or running on a workqueue which doesn't have the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee leading to a deadlock.

The call trace is as below:

[ 125.350876][ T1430] Call Trace: [ 125.356281][ T1430] [ 125.361285][ T1430] ? __warn (kernel/panic.c:693) [ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239) [ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) [ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970) [ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151) [ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm [ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910) [ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) [ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm [ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma [ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma [ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231) [ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393) [ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 125.531837][ T1430] kthread (kernel/kthread.c:389) [ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147) [ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) [ 125.566487][ T1430] [ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---

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
1%
EPSS %ILE
51%
KEV
Not listed

Published

October 21, 2024

Last Modified

August 5, 2026

Advisory Details (9)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/86dfdd8288907f03c18b7fb462e0e232c4f98d89
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a09dc967b3c58899e259c0aea092f421d22a0b04
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8b7df76356d098f85f3bd2c7cf6fb43f531893d7
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a64f30db12bdc937c5108158d98c8eab1925c548
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/da0392698c62397c19deb1b9e9bdf2fbb5a9420e
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2efe8da2ddbf873385b4bc55366d09350b408df6
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/29b3bbd912b8db86df7a3c180b910ccb621f5635
generic

RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/da2708a19f45b4a7278adf523837c8db21d1e2b5

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-aws-lts-22.04 (5.15.0.1073.73) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.127.137~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1071.71) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.127.126) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1078.76) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1078.87~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1039.43) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-18.18) @ oracular2026-05-21ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.11.0-1005.5) @ oracular2026-05-21ubuntu
ubuntulinux-tools-gcp-lts-20.04 (5.4.0.1143.145) @ focal2026-05-21ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.208.204) @ focal2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1058 (5.4.0-1058.62) @ focal2026-05-21ubuntu
ubuntulinux-virtual (6.8.0-54.56) @ noble2026-05-21ubuntu
ubuntulinux-tools-gkeop-6.8 (6.8.0-1006.8) @ noble2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k (6.8.0-1022.25.2) @ noble2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (5.4.0.1138.147~18.04.1) @ bionic2026-05-21ubuntu
ubuntulinux-tools-ibm-lts-20.04 (5.4.0.1086.115) @ focal2026-05-21ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1020.21) @ noble2026-05-21ubuntu
ubuntulinux-tools-oem-24.04b (6.11.0-1015.15) @ noble2026-05-21ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1023.25) @ noble2026-05-21ubuntu
ubuntulinux-tools-raspi (6.8.0-1019.23) @ noble2026-05-21ubuntu
ubuntulinux-tools-kvm (5.4.0.1127.123) @ focal2026-05-21ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1025.30) @ noble2026-05-21ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1022.22) @ noble2026-05-21ubuntu
ubuntulinux-tools-oem-24.04a (6.8.0-1024.24) @ noble2026-05-21ubuntu
ubuntulinux-tools-fips (5.4.0.1116.113) @ focal2026-05-21ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1025.30~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-aws-edge (5.4.0.1142.152~18.04.1) @ bionic2026-05-21ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-57.59~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-iot (5.4.0.1048.46) @ focal2026-05-21ubuntu
linuxKernel @ 4.19.323—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.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 51× 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 140 total refreshes for this CVE.

  1. 2026-08-07 16:25 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
  3. 2026-08-05 19:16 UTCEPSS rescore
  4. 2026-08-05 11:58 UTCEG score recompute
  5. 2026-08-05 11:58 UTCVendor advisory
  6. 2026-08-05 11:58 UTCGHSA enrichment
  7. 2026-08-04 15:08 UTCEPSS rescore
  8. 2026-08-04 11:45 UTCEG score recompute
  9. 2026-08-04 11:45 UTCVendor advisory
  10. 2026-08-04 11:45 UTCGHSA enrichment
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  1. 2026-07-23 14:17 UTCEPSS rescore
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  24. 2026-07-11 01:41 UTCOSV refresh
  25. 2026-07-09 19:09 UTCEPSS rescore
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  48. 2026-06-22 08:32 UTCOSV refresh
  49. 2026-06-21 14:56 UTCEPSS rescore
  50. 2026-06-21 01:59 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2024-47696?
CVE-2024-47696 is a high vulnerability published on October 21, 2024. In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix WARNING:atkernel/workqueue.c:#checkflush_dependency In the commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs"), the function flush_workqueue is invoked to flush the work queue…
When was CVE-2024-47696 disclosed?
CVE-2024-47696 was first published in the National Vulnerability Database on October 21, 2024, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-47696 actively exploited?
CVE-2024-47696 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.3% of all scored CVEs.
What is the CVSS score of CVE-2024-47696?
CVE-2024-47696 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-47696?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-47696, 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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