CVE-2024-35961

2024-05-2010:15:11

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

mlx5 driver

devlink registration

vulnerability

fw error

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.6%

JSON

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 configurations

Vulners

Node

linuxlinux_kernelRange5.16–6.6.28

linuxlinux_kernelRange6.7.0–6.8.7

linuxlinux_kernelRange6.9.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/main.c",
      "drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c"
    ],
    "versions": [
      {
        "version": "cf530217408e",
        "lessThan": "8c91c6085847",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf530217408e",
        "lessThan": "967caa3d37c0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf530217408e",
        "lessThan": "c6e77aa9dd82",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/main.c",
      "drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.28",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.7",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]