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CVE-2026-98940— ASoC: qcom: lpass-cpu: use DAI table index for playback constraints

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.

在 Linux 内核中，以下漏洞已得到修复： ASoC: qcom: lpass-cpu：使用 DAI 表索引来配置播放约束 DAI ID 是硬件端口标识符，并不一定对应变体结构体 中对应条目的索引。 当以 模式配置 DAI 时，探测代码当前错误地使用 作为索引来访问 。对于 DAI ID 不连续（稀疏）的平台，这种做法是不正确的。例如，在 IPQ806x 平台上，MI2S DAI 的 ID 为 4，但它却是 DAI 驱动表中的唯一条目。若该 DAI 被配置为 QUAD01 模式且探测流程进入此分支，代码会通过 越

AI Predicted 7.8 Difficulty: Hard

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux c223f41c1a52bfe10f1d3311679b1d1f9813e500< 775df6a27e8433e2414124472938009b958f9a77 affected
c223f41c1a52bfe10f1d3311679b1d1f9813e500< 6833f1893ac2ec40016c348779af63debf3700d2 affected
c223f41c1a52bfe10f1d3311679b1d1f9813e500< 69d2b7a4c115181629eb14d800aecc3e7de3f7fb affected
c223f41c1a52bfe10f1d3311679b1d1f9813e500< f11336e6d3cd9e28e5cdf1cb8a6171e7c3eff4e4 affected
c223f41c1a52bfe10f1d3311679b1d1f9813e500< ca51771c8efde5df05476ac98dd1b2af4e2b149f affected
5.14 affected
< 5.14 unaffected
6.6.160≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-98940

Vulnerability Information
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Vulnerability Title
ASoC: qcom: lpass-cpu: use DAI table index for playback constraints
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: lpass-cpu: use DAI table index for playback constraints The DAI ID is a hardware port ID and is not necessarily the index of the corresponding entry in variant->dai_driver. When configuring a DAI with LPAIF_I2SCTL_MODE_QUAD01, the probe code currently uses dai_id to index variant->dai_driver. This is incorrect for platforms where DAI IDs are sparse. For example, the IPQ806x MI2S DAI has ID 4 while it is the only entry in the DAI driver table. If that DAI is configured for QUAD01 and probe reaches this branch, the code writes beyond that single entry via dai_driver[4] instead of updating the DAI being processed. Use the loop index i when updating the current DAI's playback channel constraints, while retaining dai_id for indexing the hardware-port specific playback SD-line mode array. This fixes the incorrect DAI table access for platforms where the DAI ID does not match its position in the driver table.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux c223f41c1a52bfe10f1d3311679b1d1f9813e500 ~ 775df6a27e8433e2414124472938009b958f9a77 -
Linux Linux 5.14 -

II. Public POCs for CVE-2026-98940

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III. Intelligence Information for CVE-2026-98940

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Patches & Fixes for CVE-2026-98940 (2)

Same Patch Batch · Linux · 2026-10-23 · 218 CVEs total

CVE-2026-98937 perf/core: Check kernel access when kernel callchains are requested
CVE-2026-98951 riscv: ptrace: Zero-initialize regset buffers before copyin
CVE-2026-98950 flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect()
CVE-2026-98949 drm/imagination: Fix reference and vm_bo handling in remap()
CVE-2026-98948 mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()
CVE-2026-98947 vsock: Fix memory leak in vmci_transport_recv_dgram_cb()
CVE-2026-98946 drm/vc4: Disable the V3D interrupt across runtime suspend
CVE-2026-98945 HID: steam: Rearrange teardown sequence
CVE-2026-98944 HID: steam: Refactor registration
CVE-2026-98943 HID: steam: Clean up locking
CVE-2026-98942 sched_ext: Build the cid tables privately and publish them with RCU
CVE-2026-98941 ext4: don't enable large folios on encrypted inodes
CVE-2026-98939 x86/mm: Drop unnecessary PMD page copy when freeing
CVE-2026-98938 rust: irq: pass RegistrationInner as cookie to request_irq
CVE-2026-98926 drm/amd/display: Remove sink usage from DPMS
CVE-2026-98929 macsec: initialize SecY before registering the netdevice
CVE-2026-98928 KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
CVE-2026-98927 KVM: arm64: nv: Fix life cycle of the nested_mmus array
CVE-2026-98930 KVM: s390: Fix IRQ injection with SIGP Stop and Store Status
CVE-2026-98925 bpf, sockmap: Fix self-redirect copied_seq double-counting

Showing top 20 of 218 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98940

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