Is CVE-2024-56718 in the CISA KEV catalog?

No. CVE-2024-56718 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-56718?

CVE-2024-56718 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2024-56718?

CVE-2024-56718 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56718?

Upgrade linux on debian 12 to 6.1.123-1 or later. Fixes are available for 112 affected products.

CVE & CISA-KEV Catalog

CVE-2024-56718

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: protect link down work from execute after lgr freed link down work may be scheduled before lgr freed but execute after lgr freed, which may result in crash. So it is need to hold a reference before shedule link down work, and put the reference after work executed or canceled. The relevant crash call stack as follows: list_del corruption. prev->next should be ffffb638c9c0fe20, but was 0000000000000000 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:51! invalid opcode: 0000 [#1] SMP NOPTI CPU: 6 PID: 978112 Comm: kworker/6:119 Kdump: loaded Tainted: G #1 Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 2221b89 04/01/2014 Workqueue: events smc_link_down_work [smc] RIP: 0010:__list_del_entry_valid.cold+0x31/0x47 RSP: 0018:ffffb638c9c0fdd8 EFLAGS: 00010086 RAX: 0000000000000054 RBX: ffff942fb75e5128 RCX: 0000000000000000 RDX: ffff943520930aa0 RSI: ffff94352091fc80 RDI: ffff94352091fc80 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb638c9c0fc38 R10: ffffb638c9c0fc30 R11: ffffffffa015eb28 R12: 0000000000000002 R13: ffffb638c9c0fe20 R14: 0000000000000001 R15: ffff942f9cd051c0 FS: 0000000000000000(0000) GS:ffff943520900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4f25214000 CR3: 000000025fbae004 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: rwsem_down_write_slowpath+0x17e/0x470 smc_link_down_work+0x3c/0x60 [smc] process_one_work+0x1ac/0x350 worker_thread+0x49/0x2f0 ? rescuer_thread+0x360/0x360 kthread+0x118/0x140 ? __kthread_bind_mask+0x60/0x60 ret_from_fork+0x1f/0x30

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.123-1CVE-2024-56718

Fixed in:6.12.8-1CVE-2024-56718

linuxUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-awsUbuntu

Fixed in:6.8.0-1029.31USN-7513-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1029.31~22.04.1USN-7513-1

linux-azureUbuntu

Fixed in:6.8.0-1029.34USN-7513-3

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1029.34~22.04.1USN-7513-3

linux-azure-nvidiaUbuntu

Fixed in:6.8.0-1016.17USN-7522-1

linux-gcpUbuntu

Fixed in:6.8.0-1030.32USN-7515-2

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7515-2

linux-gkeUbuntu

Fixed in:6.8.0-1025.29USN-7515-1

linux-gkeopUbuntu

Fixed in:6.8.0-1012.14USN-7515-2

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-ibmUbuntu

Fixed in:6.8.0-1026.26USN-7513-1

linux-image-6.11.0-1011-lowlatencyUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1011-lowlatency-64kUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1017-oemUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-6.11.0-21-genericUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-6.11.0-21-generic-64kUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-6.8.0-1012-gkeopUbuntu

Fixed in:6.8.0-1012.14USN-7515-2

linux-image-6.8.0-1016-azure-nvidiaUbuntu

Fixed in:6.8.0-1016.17USN-7522-1

linux-image-6.8.0-1025-gkeUbuntu

Fixed in:6.8.0-1025.29USN-7515-1

linux-image-6.8.0-1026-ibmUbuntu

Fixed in:6.8.0-1026.26USN-7513-1

linux-image-6.8.0-1026-oracleUbuntu

Fixed in:6.8.0-1026.27~22.04.1USN-7513-5

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-6.8.0-1026-oracle-64kUbuntu

Fixed in:6.8.0-1026.27~22.04.1USN-7513-5

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-6.8.0-1028-nvidiaUbuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

Fixed in:6.8.0-1028.31USN-7514-1

linux-image-6.8.0-1028-nvidia-64kUbuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

Fixed in:6.8.0-1028.31USN-7514-1

linux-image-6.8.0-1028-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1028.31.1USN-7514-1

linux-image-6.8.0-1028-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1028.31.1USN-7514-1

linux-image-6.8.0-1028-oemUbuntu

Fixed in:6.8.0-1028.28USN-7513-3

linux-image-6.8.0-1028-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-image-6.8.0-1029-awsUbuntu

Fixed in:6.8.0-1029.31~22.04.1USN-7513-1

Fixed in:6.8.0-1029.31USN-7513-1

linux-image-6.8.0-1029-azureUbuntu

Fixed in:6.8.0-1029.34~22.04.1USN-7513-3

Fixed in:6.8.0-1029.34USN-7513-3

linux-image-6.8.0-1029-azure-fdeUbuntu

Fixed in:6.8.0-1029.34~22.04.1USN-7513-3

Fixed in:6.8.0-1029.34USN-7513-3

linux-image-6.8.0-1030-gcpUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7515-2

Fixed in:6.8.0-1030.32USN-7515-2

linux-image-6.8.0-1030-gcp-64kUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7515-2

Fixed in:6.8.0-1030.32USN-7515-2

linux-image-6.8.0-2023-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-image-6.8.0-60-genericUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

Fixed in:6.8.0-60.63USN-7513-1

linux-image-6.8.0-60-generic-64kUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

Fixed in:6.8.0-60.63USN-7513-1

linux-image-6.8.0-60-lowlatencyUbuntu

Fixed in:6.8.0-60.63.1~22.04.1USN-7513-1

Fixed in:6.8.0-60.63.1USN-7513-1

linux-image-6.8.0-60-lowlatency-64kUbuntu

Fixed in:6.8.0-60.63.1~22.04.1USN-7513-1

Fixed in:6.8.0-60.63.1USN-7513-1

linux-image-6.8.1-1022-realtimeUbuntu

Fixed in:6.8.1-1022.23USN-7513-2

linux-image-awsUbuntu

Fixed in:6.8.0-1029.31~22.04.1USN-7513-1

Fixed in:6.8.0-1029.31USN-7513-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1029.31USN-7513-1

linux-image-azureUbuntu

Fixed in:6.8.0-1029.34~22.04.1USN-7513-3

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1029.34~22.04.1USN-7513-3

linux-image-azure-fde-lts-24.04Ubuntu

Fixed in:6.8.0-1029.34USN-7513-3

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1029.34USN-7513-3

linux-image-azure-nvidiaUbuntu

Fixed in:6.8.0-1016.17USN-7522-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7515-2

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7515-2

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1030.32USN-7515-2

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1030.32USN-7515-2

linux-image-genericUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1025.29USN-7515-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1012.14USN-7515-2

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1012.14USN-7515-2

linux-image-ibmUbuntu

Fixed in:6.8.0-1026.26USN-7513-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1026.26USN-7513-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1026.26USN-7513-1

linux-image-kvmUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-60.63.1USN-7513-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-60.63.1USN-7513-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-60.63.1~22.04.1USN-7513-1

linux-image-lowlatency-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-60.63.1~22.04.1USN-7513-1

linux-image-lowlatency-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1028.31USN-7514-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1028.31USN-7514-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1028.31.1USN-7514-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1028.31.1USN-7514-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-oem-24.04Ubuntu

Fixed in:6.8.0-1028.28USN-7513-3

linux-image-oem-24.04aUbuntu

Fixed in:6.8.0-1028.28USN-7513-3

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1026.27~22.04.1USN-7513-5

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1026.27~22.04.1USN-7513-5

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1026.27USN-7513-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-image-realtimeUbuntu

Fixed in:6.8.1-1022.23USN-7513-2

linux-image-virtualUbuntu

Fixed in:6.8.0-60.63USN-7513-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-60.63~22.04.1USN-7513-4

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-60.63.1USN-7513-1

linux-lowlatency-hwe-6.11Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-60.63.1~22.04.1USN-7513-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1028.31USN-7514-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1028.31~22.04.1USN-7514-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1028.31.1USN-7514-1

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1028.28USN-7513-3

linux-oracleUbuntu

Fixed in:6.8.0-1026.27USN-7513-1

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1026.27~22.04.1USN-7513-5

linux-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-realtimeUbuntu

Fixed in:6.8.1-1022.23USN-7513-2

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Patch4

Other references1

lists.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.