CVE-2026-31587

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31587", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.120Z", "datePublished": "2026-04-24T14:42:15.625Z", "dateUpdated": "2026-08-05T12:23:38.154Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:23:38.154Z"}, "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": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable q6apm/ASoC teardown path is reachable from local kernel interfaces, including Qualcomm QRTR/QMI PDR notifications and local audio device activity, not from a network-facing protocol.\nAC:L - No attacker-uncontrolled race is required; once the affected Qualcomm AudioReach q6apm component is present, a local attacker can plausibly drive repeated ADSP/PDR down/up teardown events.\nPR:L - The practical attacker is an unprivileged local user with access to local QRTR/audio interfaces; the relevant path is not gated by a real init-namespace root-only capability check.\nUI:N - Exploitation does not require a victim user to open a file, mount anything, or perform an action after the attacker starts triggering the local teardown path.\nS:U - The bug corrupts kernel ASoC component/DAI state within the same kernel security authority; it is a standard local kernel memory-corruption issue rather than a cross-scope VM or IOMMU boundary escape.\nC:H - The flaw is a slab use-after-free of topology-created snd_soc_dai objects during component unregister, and kernel UAF memory corruption can be leveraged for high-impact information disclosure.\nI:H - The unregister path walks and deletes list nodes from freed DAI objects, giving a plausible kernel heap corruption primitive rather than a pure NULL dereference.\nA:H - The reported KASAN trace shows a slab-use-after-free during q6apm device removal, and the affected path can crash/oops the kernel during ADSP/PDR teardown."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/soc/qcom/qdsp6/q6apm.c"], "versions": [{"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "110769a9aa51135ac7ce479a47dfb41924f37664", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "887632163b546a8944b46ef465f1d74e838b727a", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "b7412ed789ffb1e59c8d6f5ab6a6a718963c85e2", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "30383b7780ffa140bc124de5b66cae7c84133dbb", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "f7b790531cdad3b2075ab937aa06d7b802403be4", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "a561a55b79a9c55f0443377f2d4dcf6149d057af", "status": "affected", "versionType": "git"}, {"version": "5477518b8a0e8a45239646acd80c9bafc4401522", "lessThan": "6ec1235fc941dac6c011b30ee01d9220ff87e0cd", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/soc/qcom/qdsp6/q6apm.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.136", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.83", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.24", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.1", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.6.136"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.12.83"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.18.24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.19.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "7.0.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/110769a9aa51135ac7ce479a47dfb41924f37664"}, {"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"}}}}

{}

{"affected": [{"affectedData": [{"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": "110769a9aa51135ac7ce479a47dfb41924f37664", "status": "affected", "version": "5477518b8a0e8a45239646acd80c9bafc4401522", "versionType": "git"}, {"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": "6.1.*", "status": "unaffected", "version": "6.1.175", "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", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8489BED4-A890-4712-813B-8F62B04F503D", "versionEndExcluding": "6.6.136", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F0AE5B5-23AC-4DCC-B37A-51CA1DAE7BA8", "versionEndExcluding": "6.12.83", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8126B8B8-6D0B-4443-86C1-672AEE893555", "versionEndExcluding": "6.18.24", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D6A8A074-BBF4-4803-ABED-519A839435BB", "versionEndExcluding": "6.19.14", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9B5888AB-7403-4335-89E4-21CC0B48366A", "versionEndExcluding": "7.0.1", "versionStartIncluding": "7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nASoC: qcom: q6apm: mover el registro de componentes a la versi\u00f3n no gestionada\n\nEl componente q6apm registra dais din\u00e1micamente desde la topolog\u00eda ASoC, los cuales se asignan utilizando las APIs de la versi\u00f3n gestionada por el dispositivo. La asignaci\u00f3n tanto del componente como de los dais din\u00e1micos utilizando la versi\u00f3n gestionada podr\u00eda llevar a un orden de liberaci\u00f3n incorrecto; el dai ser\u00e1 liberado mientras el componente a\u00fan mantiene referencias a \u00e9l.\n\nSolucione este problema moviendo el componente a la versi\u00f3n no gestionada para que los punteros dai solo se liberen despu\u00e9s de que el componente sea eliminado.\n\n==================================================================\nERROR: KASAN: uso despu\u00e9s de liberaci\u00f3n de slab en snd_soc_del_component_unlocked+0x3d4/0x400 [snd_soc_core]\nLectura de tama\u00f1o 8 en la direcci\u00f3n ffff00084493a6e8 por la tarea kworker/u48:0/3426\nContaminado: [W]=ADVERTENCIA\nNombre del hardware: LENOVO 21N2ZC5PUS/21N2ZC5PUS, BIOS N42ET57W (1.31 ) 08/08/2024\nCola de trabajo: pdr_notifier_wq pdr_notifier_work [pdr_interface]\nTraza de llamada:\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\nAsignado por la tarea 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/0x 1eb8 [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+0xad0/0x 2370 [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\nLiberado por la tarea 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"}], "id": "CVE-2026-31587", "lastModified": "2026-11-11T23:10:00.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-04-24T15:16:33.597", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/110769a9aa51135ac7ce479a47dfb41924f37664"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/30383b7780ffa140bc124de5b66cae7c84133dbb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6ec1235fc941dac6c011b30ee01d9220ff87e0cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/887632163b546a8944b46ef465f1d74e838b727a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a561a55b79a9c55f0443377f2d4dcf6149d057af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b7412ed789ffb1e59c8d6f5ab6a6a718963c85e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f7b790531cdad3b2075ab937aa06d7b802403be4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ASoC: qcom: q6apm: move component registration to unmanaged version", "id": "2461505", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461505"}, "csaw": false, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel, specifically within the ASoC (ALSA System on Chip) qcom q6apm component. This vulnerability arises from incorrect memory management during the dynamic registration of digital audio interface (DAI) components. When both the component and its associated DAIs are allocated using device-managed application programming interfaces (APIs), an incorrect freeing order can occur, leading to a use-after-free condition. This can result in system instability or a denial of service."], "name": "CVE-2026-31587", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31587\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31587\nhttps://lore.kernel.org/linux-cve-announce/2026042413-CVE-2026-31587-5afb@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,887632163b546a8944b46ef465f1d74e838b727a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,b7412ed789ffb1e59c8d6f5ab6a6a718963c85e2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,30383b7780ffa140bc124de5b66cae7c84133dbb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,f7b790531cdad3b2075ab937aa06d7b802403be4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,a561a55b79a9c55f0443377f2d4dcf6149d057af)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5477518b8a0e8a45239646acd80c9bafc4401522,6ec1235fc941dac6c011b30ee01d9220ff87e0cd)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.136,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.83,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.24,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.14,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.1,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "analysis": {"en": {"generated_at": "2026-04-29T01:41:30.106237+00:00", "value": {"mitigation_remediation": ["Update the Linux kernel to a version in which the q6apm component has been modified to use unmanaged registration, preventing the faulty free ordering.", "If a kernel update is not immediately available, avoid unloading or reloading the q6apm driver and block any userspace processes that trigger dynamic interface removal.", "Restrict kernel module loading to signed modules or disable loading of unsigned modules to prevent malicious modules from interacting with the q6apm driver."], "summary": {"action": "Patch", "impact": "Use\u2011After\u2011Free in ASoC q6apm component"}, "threat_synthesis": {"affected_systems": "Every Linux kernel that ships the ASoC qcom q6apm driver is potentially vulnerable, regardless of distribution. No specific kernel patch level is listed, but all builds that include the vulnerable component and its dynamic registration code are impacted until the fix that moves the component to unmanaged allocation is applied.", "description_and_impact": "The flaw is a use\u2011after\u2011free that occurs when the ASoC qcom q6apm component registers its dynamic DAIs via managed APIs during driver initialization. Because both the component and its dynamic interfaces are allocated with the device-managed API, the kernel frees the DAIs before the component releases its references. The result is a memory corruption that can trigger a kernel panic or allow an attacker to execute arbitrary code if they can crash the kernel or manipulate freed memory. The KASAN trace attached to the advisory confirms the problematic free order and potential kernel crash.", "risk_and_exploitability": "The CVSS score of 7.8 indicates high severity. The EPSS score is reported as less than 1\u202f%, suggesting that while exploitation is possible, it is considered low\u2011probability under current data. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is local: an attacker would need the ability to unload or reload the driver, or to load a malicious kernel module that interacts with q6apm, in order to trigger the problematic free order. If successfully exploited, the defective free order could lead to denial of service or, if the attacker can influence corrupted data structures, privilege escalation."}}}}, "created": "2026-04-27T19:00:15.679041+00:00", "updated": "2026-04-29T01:45:26.030340+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}