CVE-2026-31587 (GCVE-0-2026-31587)
Vulnerability from cvelistv5
Published
2026-04-24 14:42
Modified
2026-04-27 14:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ASoC: qcom: q6apm: move component registration to unmanaged version
q6apm component registers dais dynamically from ASoC toplology, which
are allocated using device managed version apis. Allocating both
component and dynamic dais using managed version could lead to incorrect
free ordering, dai will be freed while component still holding references
to it.
Fix this issue by moving component to unmanged version so
that the dai pointers are only freeded after the component is removed.
==================================================================
BUG: KASAN: slab-use-after-free in snd_soc_del_component_unlocked+0x3d4/0x400 [snd_soc_core]
Read of size 8 at addr ffff00084493a6e8 by task kworker/u48:0/3426
Tainted: [W]=WARN
Hardware name: LENOVO 21N2ZC5PUS/21N2ZC5PUS, BIOS N42ET57W (1.31 ) 08/08/2024
Workqueue: pdr_notifier_wq pdr_notifier_work [pdr_interface]
Call trace:
show_stack+0x28/0x7c (C)
dump_stack_lvl+0x60/0x80
print_report+0x160/0x4b4
kasan_report+0xac/0xfc
__asan_report_load8_noabort+0x20/0x34
snd_soc_del_component_unlocked+0x3d4/0x400 [snd_soc_core]
snd_soc_unregister_component_by_driver+0x50/0x88 [snd_soc_core]
devm_component_release+0x30/0x5c [snd_soc_core]
devres_release_all+0x13c/0x210
device_unbind_cleanup+0x20/0x190
device_release_driver_internal+0x350/0x468
device_release_driver+0x18/0x30
bus_remove_device+0x1a0/0x35c
device_del+0x314/0x7f0
device_unregister+0x20/0xbc
apr_remove_device+0x5c/0x7c [apr]
device_for_each_child+0xd8/0x160
apr_pd_status+0x7c/0xa8 [apr]
pdr_notifier_work+0x114/0x240 [pdr_interface]
process_one_work+0x500/0xb70
worker_thread+0x630/0xfb0
kthread+0x370/0x6c0
ret_from_fork+0x10/0x20
Allocated by task 77:
kasan_save_stack+0x40/0x68
kasan_save_track+0x20/0x40
kasan_save_alloc_info+0x44/0x58
__kasan_kmalloc+0xbc/0xdc
__kmalloc_node_track_caller_noprof+0x1f4/0x620
devm_kmalloc+0x7c/0x1c8
snd_soc_register_dai+0x50/0x4f0 [snd_soc_core]
soc_tplg_pcm_elems_load+0x55c/0x1eb8 [snd_soc_core]
snd_soc_tplg_component_load+0x4f8/0xb60 [snd_soc_core]
audioreach_tplg_init+0x124/0x1fc [snd_q6apm]
q6apm_audio_probe+0x10/0x1c [snd_q6apm]
snd_soc_component_probe+0x5c/0x118 [snd_soc_core]
soc_probe_component+0x44c/0xaf0 [snd_soc_core]
snd_soc_bind_card+0xad0/0x2370 [snd_soc_core]
snd_soc_register_card+0x3b0/0x4c0 [snd_soc_core]
devm_snd_soc_register_card+0x50/0xc8 [snd_soc_core]
x1e80100_platform_probe+0x208/0x368 [snd_soc_x1e80100]
platform_probe+0xc0/0x188
really_probe+0x188/0x804
__driver_probe_device+0x158/0x358
driver_probe_device+0x60/0x190
__device_attach_driver+0x16c/0x2a8
bus_for_each_drv+0x100/0x194
__device_attach+0x174/0x380
device_initial_probe+0x14/0x20
bus_probe_device+0x124/0x154
deferred_probe_work_func+0x140/0x220
process_one_work+0x500/0xb70
worker_thread+0x630/0xfb0
kthread+0x370/0x6c0
ret_from_fork+0x10/0x20
Freed by task 3426:
kasan_save_stack+0x40/0x68
kasan_save_track+0x20/0x40
__kasan_save_free_info+0x4c/0x80
__kasan_slab_free+0x78/0xa0
kfree+0x100/0x4a4
devres_release_all+0x144/0x210
device_unbind_cleanup+0x20/0x190
device_release_driver_internal+0x350/0x468
device_release_driver+0x18/0x30
bus_remove_device+0x1a0/0x35c
device_del+0x314/0x7f0
device_unregister+0x20/0xbc
apr_remove_device+0x5c/0x7c [apr]
device_for_each_child+0xd8/0x160
apr_pd_status+0x7c/0xa8 [apr]
pdr_notifier_work+0x114/0x240 [pdr_interface]
process_one_work+0x500/0xb70
worker_thread+0x630/0xfb0
kthread+0x370/0x6c0
ret_from_fork+0x10/0x20
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5477518b8a0e8a45239646acd80c9bafc4401522 Version: 5477518b8a0e8a45239646acd80c9bafc4401522 Version: 5477518b8a0e8a45239646acd80c9bafc4401522 Version: 5477518b8a0e8a45239646acd80c9bafc4401522 Version: 5477518b8a0e8a45239646acd80c9bafc4401522 Version: 5477518b8a0e8a45239646acd80c9bafc4401522 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/soc/qcom/qdsp6/q6apm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "887632163b546a8944b46ef465f1d74e838b727a",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
},
{
"lessThan": "b7412ed789ffb1e59c8d6f5ab6a6a718963c85e2",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
},
{
"lessThan": "30383b7780ffa140bc124de5b66cae7c84133dbb",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
},
{
"lessThan": "f7b790531cdad3b2075ab937aa06d7b802403be4",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
},
{
"lessThan": "a561a55b79a9c55f0443377f2d4dcf6149d057af",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
},
{
"lessThan": "6ec1235fc941dac6c011b30ee01d9220ff87e0cd",
"status": "affected",
"version": "5477518b8a0e8a45239646acd80c9bafc4401522",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"sound/soc/qcom/qdsp6/q6apm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"lessThan": "5.16",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.136",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.83",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.24",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.14",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.136",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.83",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.24",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19.14",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0.1",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1-rc1",
"versionStartIncluding": "5.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: qcom: q6apm: move component registration to unmanaged version\n\nq6apm component registers dais dynamically from ASoC toplology, which\nare allocated using device managed version apis. Allocating both\ncomponent and dynamic dais using managed version could lead to incorrect\nfree ordering, dai will be freed while component still holding references\nto it.\n\nFix this issue by moving component to unmanged version so\nthat the dai pointers are only freeded after the component is removed.\n\n==================================================================\nBUG: KASAN: slab-use-after-free in snd_soc_del_component_unlocked+0x3d4/0x400 [snd_soc_core]\nRead of size 8 at addr ffff00084493a6e8 by task kworker/u48:0/3426\nTainted: [W]=WARN\nHardware name: LENOVO 21N2ZC5PUS/21N2ZC5PUS, BIOS N42ET57W (1.31 ) 08/08/2024\nWorkqueue: pdr_notifier_wq pdr_notifier_work [pdr_interface]\nCall trace:\n show_stack+0x28/0x7c (C)\n dump_stack_lvl+0x60/0x80\n print_report+0x160/0x4b4\n kasan_report+0xac/0xfc\n __asan_report_load8_noabort+0x20/0x34\n snd_soc_del_component_unlocked+0x3d4/0x400 [snd_soc_core]\n snd_soc_unregister_component_by_driver+0x50/0x88 [snd_soc_core]\n devm_component_release+0x30/0x5c [snd_soc_core]\n devres_release_all+0x13c/0x210\n device_unbind_cleanup+0x20/0x190\n device_release_driver_internal+0x350/0x468\n device_release_driver+0x18/0x30\n bus_remove_device+0x1a0/0x35c\n device_del+0x314/0x7f0\n device_unregister+0x20/0xbc\n apr_remove_device+0x5c/0x7c [apr]\n device_for_each_child+0xd8/0x160\n apr_pd_status+0x7c/0xa8 [apr]\n pdr_notifier_work+0x114/0x240 [pdr_interface]\n process_one_work+0x500/0xb70\n worker_thread+0x630/0xfb0\n kthread+0x370/0x6c0\n ret_from_fork+0x10/0x20\n\nAllocated by task 77:\n kasan_save_stack+0x40/0x68\n kasan_save_track+0x20/0x40\n kasan_save_alloc_info+0x44/0x58\n __kasan_kmalloc+0xbc/0xdc\n __kmalloc_node_track_caller_noprof+0x1f4/0x620\n devm_kmalloc+0x7c/0x1c8\n snd_soc_register_dai+0x50/0x4f0 [snd_soc_core]\n soc_tplg_pcm_elems_load+0x55c/0x1eb8 [snd_soc_core]\n snd_soc_tplg_component_load+0x4f8/0xb60 [snd_soc_core]\n audioreach_tplg_init+0x124/0x1fc [snd_q6apm]\n q6apm_audio_probe+0x10/0x1c [snd_q6apm]\n snd_soc_component_probe+0x5c/0x118 [snd_soc_core]\n soc_probe_component+0x44c/0xaf0 [snd_soc_core]\n snd_soc_bind_card+0xad0/0x2370 [snd_soc_core]\n snd_soc_register_card+0x3b0/0x4c0 [snd_soc_core]\n devm_snd_soc_register_card+0x50/0xc8 [snd_soc_core]\n x1e80100_platform_probe+0x208/0x368 [snd_soc_x1e80100]\n platform_probe+0xc0/0x188\n really_probe+0x188/0x804\n __driver_probe_device+0x158/0x358\n driver_probe_device+0x60/0x190\n __device_attach_driver+0x16c/0x2a8\n bus_for_each_drv+0x100/0x194\n __device_attach+0x174/0x380\n device_initial_probe+0x14/0x20\n bus_probe_device+0x124/0x154\n deferred_probe_work_func+0x140/0x220\n process_one_work+0x500/0xb70\n worker_thread+0x630/0xfb0\n kthread+0x370/0x6c0\n ret_from_fork+0x10/0x20\n\nFreed by task 3426:\n kasan_save_stack+0x40/0x68\n kasan_save_track+0x20/0x40\n __kasan_save_free_info+0x4c/0x80\n __kasan_slab_free+0x78/0xa0\n kfree+0x100/0x4a4\n devres_release_all+0x144/0x210\n device_unbind_cleanup+0x20/0x190\n device_release_driver_internal+0x350/0x468\n device_release_driver+0x18/0x30\n bus_remove_device+0x1a0/0x35c\n device_del+0x314/0x7f0\n device_unregister+0x20/0xbc\n apr_remove_device+0x5c/0x7c [apr]\n device_for_each_child+0xd8/0x160\n apr_pd_status+0x7c/0xa8 [apr]\n pdr_notifier_work+0x114/0x240 [pdr_interface]\n process_one_work+0x500/0xb70\n worker_thread+0x630/0xfb0\n kthread+0x370/0x6c0\n ret_from_fork+0x10/0x20"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T14:04:12.452Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/887632163b546a8944b46ef465f1d74e838b727a"
},
{
"url": "https://git.kernel.org/stable/c/b7412ed789ffb1e59c8d6f5ab6a6a718963c85e2"
},
{
"url": "https://git.kernel.org/stable/c/30383b7780ffa140bc124de5b66cae7c84133dbb"
},
{
"url": "https://git.kernel.org/stable/c/f7b790531cdad3b2075ab937aa06d7b802403be4"
},
{
"url": "https://git.kernel.org/stable/c/a561a55b79a9c55f0443377f2d4dcf6149d057af"
},
{
"url": "https://git.kernel.org/stable/c/6ec1235fc941dac6c011b30ee01d9220ff87e0cd"
}
],
"title": "ASoC: qcom: q6apm: move component registration to unmanaged version",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-31587",
"datePublished": "2026-04-24T14:42:15.625Z",
"dateReserved": "2026-03-09T15:48:24.120Z",
"dateUpdated": "2026-04-27T14:04:12.452Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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