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Vulnerability · Published May 20, 2024 · Assigned by Linux

CVE-2024-35961net/mlx5: Register devlink first under devlink lock

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 86.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Register devlink first under devlink lock In case device is having a non fatal FW error during probe, the driver will report the error to user via devlink. This will trigger a WARN_ON, since mlx5 is calling devlink_register() last. In order to avoid the WARN_ON[1], change mlx5 to invoke devl_register() first under devlink lock. [1] WARNING: CPU: 5 PID: 227 at net/devlink/health.c:483 devlink_recover_notify.constprop.0+0xb8/0xc0 CPU: 5 PID: 227 Comm: kworker/u16:3 Not tainted 6.4.0-rc5_for_upstream_min_debug_2023_06_12_12_38 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Workqueue: mlx5_health0000:08:00.0 mlx5_fw_reporter_err_work [mlx5_core] RIP: 0010:devlink_recover_notify.constprop.0+0xb8/0xc0 Call Trace: <TASK> ? __warn+0x79/0x120 ? devlink_recover_notify.constprop.0+0xb8/0xc0 ? report_bug+0x17c/0x190 ? handle_bug+0x3c/0x60 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? devlink_recover_notify.constprop.0+0xb8/0xc0 devlink_health_report+0x4a/0x1c0 mlx5_fw_reporter_err_work+0xa4/0xd0 [mlx5_core] process_one_work+0x1bb/0x3c0 ? process_one_work+0x3c0/0x3c0 worker_thread+0x4d/0x3c0 ? process_one_work+0x3c0/0x3c0 kthread+0xc6/0xf0 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK>

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2024-35961
Debian:13linux6.8.9-1DEBIAN-CVE-2024-35961
Debian:14linux6.8.9-1DEBIAN-CVE-2024-35961
Ubuntu:24.04:LTSlinux6.8.0-38.38UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1011.12~22.04.1UBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8UBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1009.9~22.04.1UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8UBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1008.8~22.04.1UBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-35961
Ubuntu:24.04:LTSlinux-riscv6.8.0-38.38.1UBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-35961
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-35961

Affected products (as reported)

VendorProductVersions
Linux Linux cf530217408e3686f7002429769ede59dd931151 – before 8c91c60858473731bcdaf04fda99fcbcf84420d4cf530217408e3686f7002429769ede59dd931151 – before 967caa3d37c078e5b95a32094657e6a4cad145f0cf530217408e3686f7002429769ede59dd931151 – before c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8
Linux Linux 5.16

References