cbcvebase.
CVE-2024-50146
published 2024-11-07

CVE-2024-50146: 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…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
14.0th percentile
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 mlx5e_netdev_change_profile, 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 mlx5e_priv_init, 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 _mlx5e_remove. [ 732.473932] mlx5_core 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] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12 [ 734.559187] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: new profile init failed, -12 [ 734.560153] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR [ 734.589378] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12 [ 734.591136] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: 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 [ 745.551290] Call Trace: [ 745.551590] [ 745.551866] ? __die+0x20/0x60 [ 745.552218] ? page_fault_oops+0x150/0x400 [ 745.555307] ? exc_page_fault+0x79/0x240 [ 745.555729] ? asm_exc_page_fault+0x22/0x30 [ 745.556166] ? mlx5e_remove+0x6b/0xb0 [mlx5_core] [ 745.556698] auxiliary_bus_remove+0x18/0x30 [ 745.557134] device_release_driver_internal+0x1df/0x240 [ 745.557654] bus_remove_device+0xd7/0x140 [ 745.558075] device_del+0x15b/0x3c0 [ 745.558456] mlx5_rescan_d

Affected

19 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux>= 3ef14e463f6ed0218710f56b97e1a7d0448784d2 < db84cb4c8c565e6d4de84b23c2818b63991adfdddb84cb4c8c565e6d4de84b23c2818b63991adfdd
linuxlinux>= 3ef14e463f6ed0218710f56b97e1a7d0448784d2 < d6fe973c8873c998734a050f366b28facc03d32ad6fe973c8873c998734a050f366b28facc03d32a
linuxlinux>= 3ef14e463f6ed0218710f56b97e1a7d0448784d2 < 3955b77494c3c7d14873b1db67e7e00c46a714db3955b77494c3c7d14873b1db67e7e00c46a714db
linuxlinux>= 3ef14e463f6ed0218710f56b97e1a7d0448784d2 < 4dbc1d1a9f39c3711ad2a40addca04d07d9ab5d04dbc1d1a9f39c3711ad2a40addca04d07d9ab5d0
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.12 < 6.11.66.11.6
msrcazl3_kernel_6.6.82.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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