cbcvebase.
CVE-2022-49518
published 2025-02-26

CVE-2022-49518: In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-topology: Correct get_control_data for non bytes payload It is possible to…

PriorityP429high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.24%
15.8th percentile
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-topology: Correct get_control_data for non bytes payload It is possible to craft a topology where sof_get_control_data() would do out of bounds access because it expects that it is only called when the payload is bytes type. Confusingly it also handles other types of controls, but the payload parsing implementation is only valid for bytes. Fix the code to count the non bytes controls and instead of storing a pointer to sof_abi_hdr in sof_widget_data (which is only valid for bytes), store the pointer to the data itself and add a new member to save the size of the data. In case of non bytes controls we store the pointer to the chanv itself, which is just an array of values at the end. In case of bytes control, drop the wrong cdata->data (wdata[i].pdata) check against NULL since it is incorrect and invalid in this context. The data is pointing to the end of cdata struct, so it should never be null.

Affected

8 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.5-1 (bookworm)linux 5.18.5-1 (bookworm)
linuxlinux
linuxlinux>= 7006d20e5e9d25c079a82e2bc0ea7e292fdea6e6 < 896b03bb7c7010042786cfae2115083d4c241dd3896b03bb7c7010042786cfae2115083d4c241dd3
linuxlinux>= 7006d20e5e9d25c079a82e2bc0ea7e292fdea6e6 < a962890a5a3cce903ff7c7a19fadee63ed9efdc7a962890a5a3cce903ff7c7a19fadee63ed9efdc7
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 5.18 < 5.18.35.18.3

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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