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CVE-2026-80911— ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked()

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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ASoC SOF sof-audio的sof_widget_setup_unlocked()错误路径处理不当，可能导致widget use_count被双重递减以及core_put被重复调用。

AI Predicted 4.6 Difficulty: Hard EPSS 0.16% · P5

Affected Version Matrix 13

VendorProduct Version RangeStatus
Linux Linux 3c124f09b7ff0434b076a8dec1ed446a6170b549< b270ed327380428581bbcbd85707f62e942428d7 affected
31ed8da1c8e5e504710bb36863700e3389f8fc81< c06995637f6a4667f2b540ac65315bfc8196a099 affected
31ed8da1c8e5e504710bb36863700e3389f8fc81< 8cba53b862e1437257ec206d303ff942684284f1 affected
31ed8da1c8e5e504710bb36863700e3389f8fc81< d48691e70d4a9434b71039d4ed12bb0df4601acf affected
31ed8da1c8e5e504710bb36863700e3389f8fc81< e780e4917d43683224812400fe3dc4816fceba75 affected
6.6.13< 6.6.153 affected
6.7 affected
< 6.7 unaffected
… +5 more rows
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I. Basic Information for CVE-2026-80911

Vulnerability Information
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Vulnerability Title
ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked() If either tplg_ops->dai_config or widget_kcontrol_setup fail during widget setup we would double decrement the use_count of the widget because the sof_widget_free_unlocked() would be called twice, similarly the core_put would be invoked twice as well. Since the use_count and core_put() is handled within the widget_free function we need to return without falling through the pipe_widget_free label. The fixes tag is picked to the last change around this part of the code which is adequately old enough for backporting purposes.
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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ASoC SOF sof-audio的sof_widget_setup_unlocked()错误路径处理不当，可能导致widget use_count被双重递减以及core_put被重复调用。
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 3c124f09b7ff0434b076a8dec1ed446a6170b549 ~ b270ed327380428581bbcbd85707f62e942428d7 -
Linux Linux 6.7 -

II. Public POCs for CVE-2026-80911

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III. Intelligence Information for CVE-2026-80911

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Patches & Fixes for CVE-2026-80911 (5)

Same Patch Batch · Linux · 2026-09-04 · 156 CVEs total

CVE-2026-80864 RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure
CVE-2026-80857 fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVE-2026-80858 fuse: publish io-uring queues with release semantics
CVE-2026-80859 fuse: fix missing barrier when checking io-uring readiness
CVE-2026-80860 fuse: fix race between interrupt and resend
CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible
CVE-2026-80862 nvme-tcp: fix usage of page_frag_cache
CVE-2026-80863 RDMA/rxe: Fix OOB in free_rd_atomic_resources()
CVE-2026-80869 ntfs: bound the attribute-list entry in ntfs_read_inode_mount()
CVE-2026-80873 KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
CVE-2026-80872 ALSA: hda/tas2781: Cancel async firmware request at unbind
CVE-2026-80871 crypto: xilinx-trng - Remove crypto_rng interface
CVE-2026-80870 drm/amdkfd: Validate CRIU-restored IDs before idr_alloc
CVE-2026-80867 alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
CVE-2026-80865 bpf: Add missing access_ok call to copy_user_syms
CVE-2026-80866 tipc: avoid busy looping in tipc_exit_net()
CVE-2026-80854 usb: gadget: f_tcm: keep port count until LUN teardown completes
CVE-2026-80868 ntfs3: Allocate iomap inline_data using alloc_page

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80911

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