CVE-2022-48759

{"id": "CVE-2022-48759", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2024-06-20T12:15:14.023", "references": [{"url": "https://git.kernel.org/stable/c/1dbb206730f3e5ce90014ad569ddf8167ec4124a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/70cb4295ec806b663665e1d2ed15caab6159880e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/74d85e9fbc7022a4011102c7474a9c7aeb704a35", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/85aba11a8ea92a8eef2de95ebbe063086fd62d9c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1dbb206730f3e5ce90014ad569ddf8167ec4124a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/70cb4295ec806b663665e1d2ed15caab6159880e", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/74d85e9fbc7022a4011102c7474a9c7aeb704a35", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/85aba11a8ea92a8eef2de95ebbe063086fd62d9c", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev\n\nstruct rpmsg_ctrldev contains a struct cdev. The current code frees\nthe rpmsg_ctrldev struct in rpmsg_ctrldev_release_device(), but the\ncdev is a managed object, therefore its release is not predictable\nand the rpmsg_ctrldev could be freed before the cdev is entirely\nreleased, as in the backtrace below.\n\n[ 93.625603] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x7c\n[ 93.636115] WARNING: CPU: 0 PID: 12 at lib/debugobjects.c:488 debug_print_object+0x13c/0x1b0\n[ 93.644799] Modules linked in: veth xt_cgroup xt_MASQUERADE rfcomm algif_hash algif_skcipher af_alg uinput ip6table_nat fuse uvcvideo videobuf2_vmalloc venus_enc venus_dec videobuf2_dma_contig hci_uart btandroid btqca snd_soc_rt5682_i2c bluetooth qcom_spmi_temp_alarm snd_soc_rt5682v\n[ 93.715175] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.4.163-lockdep #26\n[ 93.723855] Hardware name: Google Lazor (rev3 - 8) with LTE (DT)\n[ 93.730055] Workqueue: events kobject_delayed_cleanup\n[ 93.735271] pstate: 60c00009 (nZCv daif +PAN +UAO)\n[ 93.740216] pc : debug_print_object+0x13c/0x1b0\n[ 93.744890] lr : debug_print_object+0x13c/0x1b0\n[ 93.749555] sp : ffffffacf5bc7940\n[ 93.752978] x29: ffffffacf5bc7940 x28: dfffffd000000000\n[ 93.758448] x27: ffffffacdb11a800 x26: dfffffd000000000\n[ 93.763916] x25: ffffffd0734f856c x24: dfffffd000000000\n[ 93.769389] x23: 0000000000000000 x22: ffffffd0733c35b0\n[ 93.774860] x21: ffffffd0751994a0 x20: ffffffd075ec27c0\n[ 93.780338] x19: ffffffd075199100 x18: 00000000000276e0\n[ 93.785814] x17: 0000000000000000 x16: dfffffd000000000\n[ 93.791291] x15: ffffffffffffffff x14: 6e6968207473696c\n[ 93.796768] x13: 0000000000000000 x12: ffffffd075e2b000\n[ 93.802244] x11: 0000000000000001 x10: 0000000000000000\n[ 93.807723] x9 : d13400dff1921900 x8 : d13400dff1921900\n[ 93.813200] x7 : 0000000000000000 x6 : 0000000000000000\n[ 93.818676] x5 : 0000000000000080 x4 : 0000000000000000\n[ 93.824152] x3 : ffffffd0732a0fa4 x2 : 0000000000000001\n[ 93.829628] x1 : ffffffacf5bc7580 x0 : 0000000000000061\n[ 93.835104] Call trace:\n[ 93.837644] debug_print_object+0x13c/0x1b0\n[ 93.841963] __debug_check_no_obj_freed+0x25c/0x3c0\n[ 93.846987] debug_check_no_obj_freed+0x18/0x20\n[ 93.851669] slab_free_freelist_hook+0xbc/0x1e4\n[ 93.856346] kfree+0xfc/0x2f4\n[ 93.859416] rpmsg_ctrldev_release_device+0x78/0xb8\n[ 93.864445] device_release+0x84/0x168\n[ 93.868310] kobject_cleanup+0x12c/0x298\n[ 93.872356] kobject_delayed_cleanup+0x10/0x18\n[ 93.876948] process_one_work+0x578/0x92c\n[ 93.881086] worker_thread+0x804/0xcf8\n[ 93.884963] kthread+0x2a8/0x314\n[ 93.888303] ret_from_fork+0x10/0x18\n\nThe cdev_device_add/del() API was created to address this issue (see\ncommit '233ed09d7fda (\"chardev: add helper function to register char\ndevs with a struct device\")'), use it instead of cdev add/del()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rpmsg: char: corrige la ejecuci\u00f3n entre el lanzamiento de rpmsg_ctrldev y cdev struct rpmsg_ctrldev contiene una estructura cdev. El c\u00f3digo actual libera la estructura rpmsg_ctrldev en rpmsg_ctrldev_release_device(), pero el cdev es un objeto administrado, por lo tanto su liberaci\u00f3n no es predecible y rpmsg_ctrldev podr\u00eda liberarse antes de que el cdev se libere por completo, como se muestra en el seguimiento a continuaci\u00f3n. [ 93.625603] ODEBUG: tipo de objeto activo libre (estado activo 0): timer_list sugerencia: retardado_work_timer_fn+0x0/0x7c [ 93.636115] ADVERTENCIA: CPU: 0 PID: 12 en lib/debugobjects.c:488 debug_print_object+0x13c/0x1b0 [ 93.644799 ] M\u00f3dulos vinculados en: veth xt_cgroup xt_MASQUERADE rfcomm algif_hash algif_skcipher af_alg uinput ip6table_nat fuse uvcvideo videobuf2_vmalloc venus_enc venus_dec videobuf2_dma_contig hci_uart btandroid btqca snd_soc_rt5682_i2c bluetooth qcom_spmi_temp_al arm snd_soc_rt5682v [93.715175] CPU: 0 PID: 12 Comm: kworker/0:1 Contaminado: GB 5.4.163-lockdep #26 [93.723855] Nombre del hardware: Google Lazor (rev3 - 8) con LTE (DT) [93.730055] Cola de trabajo: eventos kobject_delayed_cleanup [93.735271] pstate: 60c00009 (nZCv daif +PAN +UAO) [93.740216] pc: debug_print_object+0x 13c/ 0x1b0 [93.744890] lr: debug_print_object+0x13c/0x1b0 [93.749555] sp: ffffffacf5bc7940 [93.752978] x29: ffffffacf5bc7940 x28: dfffffd000000000 [93.758448] 27: fffffacdb11a800 x26: dfffffd000000000 [ 93.763916] x25: ffffffd0734f856c x24: dfffffd000000000 [ 93.769389] x23: 0000000000000000 x22: ffffffd0733c35b0 [ 93.774860] x21: ffffffd0751994a0 x20: ffffffd075ec27c0 [ 93.780338] x19: ffffffd075199100 x18: 00000000000276e0 [ 93.78 5814] x17: 0000000000000000 x16: dfffffd000000000 [ 93.791291] x15: ffffffffffffffff x14: 6e6968207473696c [ 93.796768] x13: 00000000000000000 x 12: ffffffd075e2b000 [ 93.802244 ] x11: 0000000000000001 x10: 0000000000000000 [ 93.807723] x9 : d13400dff1921900 x8 : d13400dff1921900 [ 93.813200] x7 : 000000000000000 0 x6: 0000000000000000 [93.818676] x5: 0000000000000080 x4: 0000000000000000 [93.824152] x3: ffffffd0732a0fa4 x2: 0000000000000001 [9 3.829628] x1 : ffffffacf5bc7580 x0 : 0000000000000061 [93.835104] Rastreo de llamadas: [93.837644] debug_print_object+0x13c/0x1b0 [93.841963] __debug_check_no_obj_freed+0x25c/0x3c0 [93.846987] _freed+0x18/0x20 [ 93.851669] slab_free_freelist_hook+0xbc/0x1e4 [ 93.856346] kfree+0xfc/0x2f4 [ 93.859416 ] rpmsg_ctrldev_release_device+0x78/0xb8 [ 93.864445] device_release+0x84/0x168 [ 93.868310] kobject_cleanup+0x12c/0x298 [ 93.872356] kobject_delayed_cleanup+0x10/0x18 [ 93.87694 8] proceso_one_work+0x578/0x92c [ 93.881086] hilo_trabajador+0x804/0xcf8 [ 93.884963] kthread +0x2a8/0x314 [ 93.888303] ret_from_fork+0x10/0x18 La API cdev_device_add/del() se cre\u00f3 para solucionar este problema (consulte el commit '233ed09d7fda (\"chardev: agregar funci\u00f3n auxiliar para registrar desarrolladores de caracteres con un dispositivo de estructura\")'), \u00daselo en lugar de cdev add/del()."}], "lastModified": "2025-09-17T17:18:53.057", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E303FBB2-9F13-4FBE-874A-B48C6A56A829", "versionEndExcluding": "4.14.265", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "87288F16-8DE4-4680-95D9-8601B47620D7", "versionEndExcluding": "4.19.228", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "581D4C61-D3FC-4DB2-85E3-EE596EEBA89E", "versionEndExcluding": "5.4.176", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "27A6621A-A196-4220-957F-334B9124E477", "versionEndExcluding": "5.10.96", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D", "versionEndExcluding": "5.15.19", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D", "versionEndExcluding": "5.16.5", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}