CVE-2022-49842 (GCVE-0-2022-49842)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: core: Fix use-after-free in snd_soc_exit() KASAN reports a use-after-free: BUG: KASAN: use-after-free in device_del+0xb5b/0xc60 Read of size 8 at addr ffff888008655050 by task rmmod/387 CPU: 2 PID: 387 Comm: rmmod Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl+0x79/0x9a print_report+0x17f/0x47b kasan_report+0xbb/0xf0 device_del+0xb5b/0xc60 platform_device_del.part.0+0x24/0x200 platform_device_unregister+0x2e/0x40 snd_soc_exit+0xa/0x22 [snd_soc_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd ... </TASK> It's bacause in snd_soc_init(), snd_soc_util_init() is possble to fail, but its ret is ignored, which makes soc_dummy_dev unregistered twice. snd_soc_init() snd_soc_util_init() platform_device_register_simple(soc_dummy_dev) platform_driver_register() # fail platform_device_unregister(soc_dummy_dev) platform_driver_register() # success ... snd_soc_exit() snd_soc_util_exit() # soc_dummy_dev will be unregistered for second time To fix it, handle error and stop snd_soc_init() when util_init() fail. Also clean debugfs when util_init() or driver_register() fail.
References
Impacted products
Vendor Product Version
Linux Linux Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
Version: fb257897bf20c5f0e1df584bb5b874e811651263
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: core: Fix use-after-free in snd_soc_exit()\n\nKASAN reports a use-after-free:\n\nBUG: KASAN: use-after-free in device_del+0xb5b/0xc60\nRead of size 8 at addr ffff888008655050 by task rmmod/387\nCPU: 2 PID: 387 Comm: rmmod\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl+0x79/0x9a\nprint_report+0x17f/0x47b\nkasan_report+0xbb/0xf0\ndevice_del+0xb5b/0xc60\nplatform_device_del.part.0+0x24/0x200\nplatform_device_unregister+0x2e/0x40\nsnd_soc_exit+0xa/0x22 [snd_soc_core]\n__do_sys_delete_module.constprop.0+0x34f/0x5b0\ndo_syscall_64+0x3a/0x90\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n...\n\u003c/TASK\u003e\n\nIt\u0027s bacause in snd_soc_init(), snd_soc_util_init() is possble to fail,\nbut its ret is ignored, which makes soc_dummy_dev unregistered twice.\n\nsnd_soc_init()\n    snd_soc_util_init()\n        platform_device_register_simple(soc_dummy_dev)\n        platform_driver_register() # fail\n    \tplatform_device_unregister(soc_dummy_dev)\n    platform_driver_register() # success\n...\nsnd_soc_exit()\n    snd_soc_util_exit()\n    # soc_dummy_dev will be unregistered for second time\n\nTo fix it, handle error and stop snd_soc_init() when util_init() fail.\nAlso clean debugfs when util_init() or driver_register() fail."
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        "dateUpdated": "2025-05-04T08:46:41.713Z",
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          "url": "https://git.kernel.org/stable/c/6ec27c53886c8963729885bcf2dd996eba2767a7"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49842",
    "datePublished": "2025-05-01T14:09:57.711Z",
    "dateReserved": "2025-05-01T14:05:17.229Z",
    "dateUpdated": "2025-05-04T08:46:41.713Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49842\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:07.703\",\"lastModified\":\"2025-05-07T13:32:46.270\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nASoC: core: Fix use-after-free in snd_soc_exit()\\n\\nKASAN reports a use-after-free:\\n\\nBUG: KASAN: use-after-free in device_del+0xb5b/0xc60\\nRead of size 8 at addr ffff888008655050 by task rmmod/387\\nCPU: 2 PID: 387 Comm: rmmod\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\\nCall Trace:\\n\u003cTASK\u003e\\ndump_stack_lvl+0x79/0x9a\\nprint_report+0x17f/0x47b\\nkasan_report+0xbb/0xf0\\ndevice_del+0xb5b/0xc60\\nplatform_device_del.part.0+0x24/0x200\\nplatform_device_unregister+0x2e/0x40\\nsnd_soc_exit+0xa/0x22 [snd_soc_core]\\n__do_sys_delete_module.constprop.0+0x34f/0x5b0\\ndo_syscall_64+0x3a/0x90\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n...\\n\u003c/TASK\u003e\\n\\nIt\u0027s bacause in snd_soc_init(), snd_soc_util_init() is possble to fail,\\nbut its ret is ignored, which makes soc_dummy_dev unregistered twice.\\n\\nsnd_soc_init()\\n    snd_soc_util_init()\\n        platform_device_register_simple(soc_dummy_dev)\\n        platform_driver_register() # fail\\n    \\tplatform_device_unregister(soc_dummy_dev)\\n    platform_driver_register() # success\\n...\\nsnd_soc_exit()\\n    snd_soc_util_exit()\\n    # soc_dummy_dev will be unregistered for second time\\n\\nTo fix it, handle error and stop snd_soc_init() when util_init() fail.\\nAlso clean debugfs when util_init() or driver_register() fail.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: n\u00facleo: Se corrige el use-after-free en snd_soc_exit() KASAN informa un use-after-free: ERROR: KASAN: use-after-free en device_del+0xb5b/0xc60 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888008655050 por la tarea rmmod/387 CPU: 2 PID: 387 Comm: rmmod Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996) Rastreo de llamadas:  dump_stack_lvl+0x79/0x9a print_report+0x17f/0x47b kasan_report+0xbb/0xf0 device_del+0xb5b/0xc60 platform_device_del.part.0+0x24/0x200 platform_device_unregister+0x2e/0x40 snd_soc_exit+0xa/0x22 [snd_soc_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd ...  It\u0027s bacause in snd_soc_init(), snd_soc_util_init() is possble to fail, but its ret is ignored, which makes soc_dummy_dev unregistered twice. snd_soc_init() snd_soc_util_init() platform_device_register_simple(soc_dummy_dev) platform_driver_register() # fail platform_device_unregister(soc_dummy_dev) platform_driver_register() # success ... snd_soc_exit() snd_soc_util_exit() # soc_dummy_dev will be unregistered for second time To fix it, handle error and stop snd_soc_init() when util_init() fail. Also clean debugfs when util_init() or driver_register() fail. \"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0\",\"versionEndExcluding\":\"4.9.334\",\"matchCriteriaId\":\"9B27565B-31CF-47D1-97C1-877DC4D928D8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.300\",\"matchCriteriaId\":\"424802D2-E9E7-48A9-AD6F-DF2227B3D83A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.267\",\"matchCriteriaId\":\"A5C69A12-68E2-400E-9A5A-375A673C8402\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.225\",\"matchCriteriaId\":\"94D21814-3051-4860-AB06-C7880A3D4933\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.156\",\"matchCriteriaId\":\"E2152F3D-E6D3-405D-B0BE-911B8B6E2EE6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.80\",\"matchCriteriaId\":\"51BBEF3B-79F5-4D4C-ADBA-F34DA0E2465C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.10\",\"matchCriteriaId\":\"64F9ADD1-3ADB-4D66-A00F-4A83010B05F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2ec3f558db343b045a7c7419cdbaec266b8ac1a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/34eee4189bcebbd5f6a2ff25ef0cb893ad33d51e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/41fad4f712e081acdfde8b59847f9f66eaf407a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6ec27c53886c8963729885bcf2dd996eba2767a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d21554ec7680e9585fb852d933203c3db60dad1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/90bbdf30a51e42378cb23a312005a022794b8e1e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a3365e62239dc064019a244bde5686ac18527c22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c5674bd073c0fd9f620ca550c5ff08d0d429bdd9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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