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CVE-2026-53350— ASoC: wm_adsp: Fix NULL dereference when removing firmware controls

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.16版本存在安全漏洞，该漏洞源于ASoC wm_adsp子系统中删除固件控制时未检查priv指针为空，可能导致空指针取消引用。

AI Predicted 4.4 Difficulty: Easy EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 affected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 10def23b67b42679d5b1a356e1a6f3498bd188c3 affected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 2f1be283aa777d655525d000d16474b7e7d015ea affected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 12e579b889624ec54a201d98fdff975de556c731 affected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 affected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862< 7d3fb78b550301e43fdc60312aed733069694426 affected
5.16 affected
< 5.16 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-53350

Vulnerability Information
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Vulnerability Title
ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: wm_adsp: Fix NULL dereference when removing firmware controls In wm_adsp_control_remove() check that the priv pointer is not NULL before attempting to cleanup what it points to. When cs_dsp creates a control it calls wm_adsp_control_add_cb() so that wm_adsp can create its own private control data. There are two cases where private data is not created: 1. The control is a SYSTEM control, so an ALSA control is not created. 2. The codec driver has registered a control_add() callback that hides the control, so wm_adsp_control_add() is not called. When cs_dsp_remove destroys its control list it calls wm_adsp_control_remove() for each control. But wm_adsp_control_remove() was attempting to cleanup the private data pointed to by cs_ctl->priv without checking the pointer for NULL.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.16版本存在安全漏洞，该漏洞源于ASoC wm_adsp子系统中删除固件控制时未检查priv指针为空，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 ~ 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 -
Linux Linux 5.16 -

II. Public POCs for CVE-2026-53350

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III. Intelligence Information for CVE-2026-53350

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Patches & Fixes for CVE-2026-53350 (5)

Same Patch Batch · Linux · 2026-07-01 · 31 CVEs total

CVE-2026-53355 9.8 CRITICAL net: rds: clear i_sends on setup unwind
CVE-2026-53354 8.8 HIGH arm64: errata: Mitigate TLBI errata on various Arm CPUs
CVE-2026-53341 7.8 HIGH fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
CVE-2026-53356 7.8 HIGH drm/i915/gem: Fix phys BO pread/pwrite with offset
CVE-2026-53329 7.0 HIGH drm/amd/display: Use krealloc_array() in dal_vector_reserve()
CVE-2026-53343 ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow
CVE-2026-53326 debugobjects: Don't call fill_pool() in early boot hardirq context
CVE-2026-53328 sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()
CVE-2026-53353 hsr: Remove WARN_ONCE() in hsr_addr_is_self().
CVE-2026-53330 drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
CVE-2026-53352 signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
CVE-2026-53351 riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI
CVE-2026-53348 ASoC: SDCA: fix NULL pointer dereference in sdca_dev_unregister_functions
CVE-2026-53349 netfilter: nf_conntrack: destroy stale expectfn expectations on unregister
CVE-2026-53346 rust: arm64: set uwtable llvm module flag for CONFIG_UNWIND_TABLES
CVE-2026-53347 drm/virtio: Fix driver removal with disabled KMS
CVE-2026-53344 pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init
CVE-2026-53345 KVM: Don't WARN if memory is dirtied without a vCPU when the VM is dying
CVE-2026-53342 arm64: mm: call pagetable dtor when freeing hot-removed page tables
CVE-2026-53327 debugobjects: Do not fill_pool() if pi_blocked_on

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53350

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