CVE-2025-38056

{"id": "CVE-2025-38056", "cveTags": [], "metrics": {}, "published": "2025-06-18T10:15:38.340", "references": [{"url": "https://git.kernel.org/stable/c/2b49e68360eb6a1c03dc1642a51f7d9f6784c034", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7dd7f39fce0022b386ef1ea5ffef92ecc7dfc6af", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f9670b2e81e8a3cbf2e1e757190dd0b920a9d43f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: Intel: hda: Fix UAF when reloading module\n\nhda_generic_machine_select() appends -idisp to the tplg filename by\nallocating a new string with devm_kasprintf(), then stores the string\nright back into the global variable snd_soc_acpi_intel_hda_machines.\nWhen the module is unloaded, this memory is freed, resulting in a global\nvariable pointing to freed memory. Reloading the module then triggers\na use-after-free:\n\nBUG: KFENCE: use-after-free read in string+0x48/0xe0\n\nUse-after-free read at 0x00000000967e0109 (in kfence-#99):\n string+0x48/0xe0\n vsnprintf+0x329/0x6e0\n devm_kvasprintf+0x54/0xb0\n devm_kasprintf+0x58/0x80\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\n sof_probe_work+0x7f/0x600 [snd_sof]\n process_one_work+0x17b/0x330\n worker_thread+0x2ce/0x3f0\n kthread+0xcf/0x100\n ret_from_fork+0x31/0x50\n ret_from_fork_asm+0x1a/0x30\n\nkfence-#99: 0x00000000198a940f-0x00000000ace47d9d, size=64, cache=kmalloc-64\n\nallocated by task 333 on cpu 8 at 17.798069s (130.453553s ago):\n devm_kmalloc+0x52/0x120\n devm_kvasprintf+0x66/0xb0\n devm_kasprintf+0x58/0x80\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\n sof_probe_work+0x7f/0x600 [snd_sof]\n process_one_work+0x17b/0x330\n worker_thread+0x2ce/0x3f0\n kthread+0xcf/0x100\n ret_from_fork+0x31/0x50\n ret_from_fork_asm+0x1a/0x30\n\nfreed by task 1543 on cpu 4 at 141.586686s (6.665010s ago):\n release_nodes+0x43/0xb0\n devres_release_all+0x90/0xf0\n device_unbind_cleanup+0xe/0x70\n device_release_driver_internal+0x1c1/0x200\n driver_detach+0x48/0x90\n bus_remove_driver+0x6d/0xf0\n pci_unregister_driver+0x42/0xb0\n __do_sys_delete_module+0x1d1/0x310\n do_syscall_64+0x82/0x190\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix it by copying the match array with devm_kmemdup_array() before we\nmodify it."}], "lastModified": "2025-06-18T13:46:52.973", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}