CVE-2024-50146: net/mlx5e: Don't call cleanup on profile rollback failure

Published Nov 7, 2024
·
Updated

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

net/mlx5e: Don't call cleanup on profile rollback failure

When profile rollback fails in mlx5enetdevchangeprofile, the netdev profile var is left set to NULL. Avoid a crash when unloading the driver by not calling profile->cleanup in such a case.

This was encountered while testing, with the original trigger that the wq rescuer thread creation got interrupted (presumably due to Ctrl+C-ing modprobe), which gets converted to ENOMEM (-12) by mlx5eprivinit, the profile rollback also fails for the same reason (signal still active) so the profile is left as NULL, leading to a crash later in mlx5eremove.

[ 732.473932] mlx5core 0000:08:00.1: E-Switch: Unload vfs: mode(OFFLOADS), nvfs(2), necvfs(0), active vports(2) [ 734.525513] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR [ 734.557372] mlx5core 0000:08:00.1: mlx5enetdevinitprofile:6235:(pid 6086): mlx5eprivinit failed, err=-12 [ 734.559187] mlx5core 0000:08:00.1 eth3: mlx5enetdevchangeprofile: new profile init failed, -12 [ 734.560153] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR [ 734.589378] mlx5core 0000:08:00.1: mlx5enetdevinitprofile:6235:(pid 6086): mlx5eprivinit failed, err=-12 [ 734.591136] mlx5core 0000:08:00.1 eth3: mlx5enetdevchangeprofile: failed to rollback to orig profile, -12 [ 745.537492] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 745.538222] #PF: supervisor read access in kernel mode <snipped> [ 745.551290] Call Trace: [ 745.551590] <TASK> [ 745.551866] ? die+0x20/0x60 [ 745.552218] ? pagefaultoops+0x150/0x400 [ 745.555307] ? excpagefault+0x79/0x240 [ 745.555729] ? asmexcpagefault+0x22/0x30 [ 745.556166] ? mlx5eremove+0x6b/0xb0 [mlx5core] [ 745.556698] auxiliarybusremove+0x18/0x30 [ 745.557134] devicereleasedriverinternal+0x1df/0x240 [ 745.557654] busremovedevice+0xd7/0x140 [ 745.558075] devicedel+0x15b/0x3c0 [ 745.558456] mlx5rescandriverslocked.part.0+0xb1/0x2f0 [mlx5core] [ 745.559112] mlx5unregisterdevice+0x34/0x50 [mlx5core] [ 745.559686] mlx5uninitone+0x46/0xf0 [mlx5core] [ 745.560203] removeone+0x4e/0xd0 [mlx5core] [ 745.560694] pcideviceremove+0x39/0xa0 [ 745.561112] devicereleasedriverinternal+0x1df/0x240 [ 745.561631] driverdetach+0x47/0x90 [ 745.562022] busremovedriver+0x84/0x100 [ 745.562444] pciunregisterdriver+0x3b/0x90 [ 745.562890] mlx5cleanup+0xc/0x1b [mlx5core] [ 745.563415] x64sysdeletemodule+0x14d/0x2f0 [ 745.563886] ? kmemcachefree+0x1b0/0x460 [ 745.564313] ? lockdephardirqsonprepare+0xe2/0x190 [ 745.564825] dosyscall64+0x6d/0x140 [ 745.565223] entrySYSCALL64afterhwframe+0x4b/0x53 [ 745.565725] RIP: 0033:0x7f1579b1288b

Affected Software

164 affected componentsFixes available
Microsoft azl3 kernel 6.6.82.1-1
Patch available
Microsoft azl3 kernel 6.6.92.2-1
Patch available
Linux Linux kernel>=5.12<6.11.6
Linux Linux kernel=6.12-rc1
Linux Linux kernel=6.12-rc2
Linux Linux kernel=6.12-rc3
debian/linux<6.1.123-1
6.1.123-1
debian/linux<6.11.6-1
6.11.6-1
debian/linux<6.11.6-1
6.11.6-1
linux/kernel>=5.12.0<6.1.123
6.1.123
linux/kernel>=6.2.0<6.6.80
6.6.80
linux/kernel>=6.7.0<6.11.6
6.11.6
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.15-1
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.15*
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-azure-fde-5.15*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15*
ubuntu/linux-gcp-5.8*
ubuntu/linux-gke*
ubuntu/linux-gke-5.15*
ubuntu/linux-gkeop-5.15*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.15*
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm-5.15*
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15*
ubuntu/linux-lowlatency-hwe-5.15*
ubuntu/linux-nvidia-tegra-5.15*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15*
ubuntu/linux-riscv-5.8*
ubuntu/linux*
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws*
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1027.29~22.04.1
6.8.0-1027.29~22.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-6.8<6.8.0-1027.32~22.04.1
6.8.0-1027.32~22.04.1
ubuntu/linux-azure-fde*
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gcp-6.8<6.8.0-1028.30~22.04.1
6.8.0-1028.30~22.04.1
ubuntu/linux-gke*
ubuntu/linux-gkeop*
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-58.60~22.04.1
6.8.0-58.60~22.04.1
ubuntu/linux-ibm*
ubuntu/linux-ibm-6.8<6.8.0-1024.24~22.04.1
6.8.0-1024.24~22.04.1
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg*
ubuntu/linux-kvm*
ubuntu/linux-lowlatency*
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-lowlatency-hwe-6.8<6.8.0-58.60.1~22.04.1
6.8.0-58.60.1~22.04.1
ubuntu/linux-nvidia*
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-nvidia-6.8<6.8.0-1026.29~22.04.1
6.8.0-1026.29~22.04.1
ubuntu/linux-nvidia-tegra*
ubuntu/linux-nvidia-tegra-igx*
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle*
ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1024.25~22.04.1
6.8.0-1024.25~22.04.1
ubuntu/linux-raspi*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-58.60.1~22.04.1
6.8.0-58.60.1~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp*
ubuntu/linux-bluefield*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-realtime-6.8<6.8.1-1020.21~22.04.1
6.8.1-1020.21~22.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<6.8.0-58.60
6.8.0-58.60
ubuntu/linux-aws<6.8.0-1027.29
6.8.0-1027.29
ubuntu/linux-azure<6.8.0-1027.32
6.8.0-1027.32
ubuntu/linux-azure-6.11<6.11.0-1012.12~24.04.1
6.11.0-1012.12~24.04.1
ubuntu/linux-azure-nvidia<6.8.0-1014.15
6.8.0-1014.15
ubuntu/linux-gcp<6.8.0-1028.30
6.8.0-1028.30
ubuntu/linux-gcp-6.11<6.11.0-1011.11~24.04.1
6.11.0-1011.11~24.04.1
ubuntu/linux-gke<6.8.0-1023.27
6.8.0-1023.27
ubuntu/linux-gkeop<6.8.0-1010.12
6.8.0-1010.12
ubuntu/linux-ibm<6.8.0-1024.24
6.8.0-1024.24
ubuntu/linux-lowlatency<6.8.0-58.60.1
6.8.0-58.60.1
ubuntu/linux-nvidia<6.8.0-1026.29
6.8.0-1026.29
ubuntu/linux-nvidia-6.11<6.11.0-1007.7
6.11.0-1007.7
ubuntu/linux-nvidia-lowlatency<6.8.0-1026.29.1
6.8.0-1026.29.1
ubuntu/linux-nvidia-tegra<6.8.0-1008.8
6.8.0-1008.8
ubuntu/linux-oem-6.11<6.11.0-1015.15
6.11.0-1015.15
ubuntu/linux-oem-6.8<6.8.0-1026.26
6.8.0-1026.26
ubuntu/linux-oracle<6.8.0-1024.25
6.8.0-1024.25
ubuntu/linux-raspi<6.8.0-1028.32
6.8.0-1028.32
ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv<6.8.0-58.60.1
6.8.0-58.60.1
ubuntu/linux-xilinx<6.8.0-1017.18
6.8.0-1017.18
ubuntu/linux-raspi-realtime<6.8.0-2023.24
6.8.0-2023.24
ubuntu/linux-realtime<6.8.1-1020.21
6.8.1-1020.21
ubuntu/linux-fips<6.8.0-78.78+fips1
6.8.0-78.78+fips1
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.123-1
  2. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.11.6-1
  3. Upgrade

    Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1027.29~22.04.1
  4. Upgrade

    Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1027.32~22.04.1
  5. Upgrade

    Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1028.30~22.04.1
  6. Upgrade

    Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60~22.04.1
  7. Upgrade

    Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1024.24~22.04.1
  8. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60.1~22.04.1
  9. Upgrade

    Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1026.29~22.04.1
  10. Upgrade

    Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1024.25~22.04.1
  11. Upgrade

    Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60.1~22.04.1
  12. Upgrade

    Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.1-1020.21~22.04.1
  13. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60
  14. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 6.8.0-1027.29
  15. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 6.8.0-1027.32
  16. Upgrade

    Upgrade ubuntu/linux-azure-6.11 to a version that resolves this vulnerability.

    Fixed in 6.11.0-1012.12~24.04.1
  17. Upgrade

    Upgrade ubuntu/linux-azure-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1014.15
  18. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 6.8.0-1028.30
  19. Upgrade

    Upgrade ubuntu/linux-gcp-6.11 to a version that resolves this vulnerability.

    Fixed in 6.11.0-1011.11~24.04.1
  20. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 6.8.0-1023.27
  21. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 6.8.0-1010.12
  22. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 6.8.0-1024.24
  23. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60.1
  24. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1026.29
  25. Upgrade

    Upgrade ubuntu/linux-nvidia-6.11 to a version that resolves this vulnerability.

    Fixed in 6.11.0-1007.7
  26. Upgrade

    Upgrade ubuntu/linux-nvidia-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-1026.29.1
  27. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 6.8.0-1008.8
  28. Upgrade

    Upgrade ubuntu/linux-oem-6.11 to a version that resolves this vulnerability.

    Fixed in 6.11.0-1015.15
  29. Upgrade

    Upgrade ubuntu/linux-oem-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1026.26
  30. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 6.8.0-1024.25
  31. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 6.8.0-1028.32
  32. Upgrade

    Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.

    Fixed in 6.8.0-58.60.1
  33. Upgrade

    Upgrade ubuntu/linux-xilinx to a version that resolves this vulnerability.

    Fixed in 6.8.0-1017.18
  34. Upgrade

    Upgrade ubuntu/linux-raspi-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.0-2023.24
  35. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.1-1020.21
  36. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-78.78+fips1
  37. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.1.123
  38. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.6.80
  39. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.11.6
  40. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.15-1
  41. Compensating control

    When profile rollback fails in mlx5e_netdev_change_profile and the netdev profile variable is left NULL, avoid calling profile->cleanup during driver unloading.

Event History

Nov 7, 2024
CVE Published
via MITRE·09:31 AM
Data Sourced
via MITRE·09:31 AM
Description
Data Sourced
via OSV·09:31 AM
DescriptionAffected Software
Data Sourced
via NVD·10:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 4, 2025
Data Sourced
via Microsoft·03:15 AM
DescriptionSeverityWeaknessAffected Software
Nov 11, 2026
Data Sourced
via OSV·09:38 AM
Severity

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-50146?

The severity of CVE-2024-50146 is classified as moderate due to the potential for causing crashes when unloading the driver.

2

How do I fix CVE-2024-50146?

To mitigate CVE-2024-50146, upgrade the Linux kernel to version 6.12 or later.

3

Which versions of the Linux kernel are affected by CVE-2024-50146?

CVE-2024-50146 affects Linux kernel versions from 5.12 up to 6.11.6, as well as 6.12-rc1, 6.12-rc2, and 6.12-rc3.

4

What component of the Linux kernel is impacted by CVE-2024-50146?

CVE-2024-50146 impacts the mlx5e network driver component of the Linux kernel.

5

Is there any workaround for CVE-2024-50146?

Currently, the recommended action is to upgrade the kernel, as no specific workarounds are outlined for CVE-2024-50146.

Company

Resources

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