Description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-core: care NULL dirver name on snd_soc_lookup_component_nolocked()
soc-generic-dmaengine-pcm.c uses same dev for both CPU and Platform.
In such case, CPU component driver might not have driver->name, then
snd_soc_lookup_component_nolocked() will be NULL pointer access error.
Care NULL driver name.
Call trace:
strcmp from snd_soc_lookup_component_nolocked+0x64/0xa4
snd_soc_lookup_component_nolocked from snd_soc_unregister_component_by_driver+0x2c/0x44
snd_soc_unregister_component_by_driver from snd_dmaengine_pcm_unregister+0x28/0x64
snd_dmaengine_pcm_unregister from devres_release_all+0x98/0xfc
devres_release_all from device_unbind_cleanup+0xc/0x60
device_unbind_cleanup from really_probe+0x220/0x2c8
really_probe from __driver_probe_device+0x88/0x1a0
__driver_probe_device from driver_probe_device+0x30/0x110
driver_probe_device from __driver_attach+0x90/0x178
__driver_attach from bus_for_each_dev+0x7c/0xcc
bus_for_each_dev from bus_add_driver+0xcc/0x1ec
bus_add_driver from driver_register+0x80/0x11c
driver_register from do_one_initcall+0x58/0x23c
do_one_initcall from kernel_init_freeable+0x198/0x1f4
kernel_init_freeable from kernel_init+0x1c/0x12c
kernel_init from ret_from_fork+0x14/0x28
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.16 | 6.16.6 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.16.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | linux-azure-fde | No fix yet | — |
| Ubuntu 24.04 LTS | linux-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Advisories 1
- WID-SEC-2025-2170 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026