cve-2022-48759
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2024-11-04 12:15
Severity ?
Summary
rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1dbb206730f3e5ce90014ad569ddf8167ec4124a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/70cb4295ec806b663665e1d2ed15caab6159880e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74d85e9fbc7022a4011102c7474a9c7aeb704a35
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/85aba11a8ea92a8eef2de95ebbe063086fd62d9c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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                "id": "CVE-2022-48759",
                "options": [
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                    "Automatable": "no"
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-20T15:44:05.243673Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:25:00.922Z",
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/rpmsg/rpmsg_char.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "product": "Linux",
          "programFiles": [
            "drivers/rpmsg/rpmsg_char.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "4.11"
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            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "4.14.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.228",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
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      "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 \u0027233ed09d7fda (\"chardev: add helper function to register char\ndevs with a struct device\")\u0027), use it instead of cdev add/del()."
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b"
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        {
          "url": "https://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a"
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      "title": "rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48759",
    "datePublished": "2024-06-20T11:13:37.872Z",
    "dateReserved": "2024-06-20T11:09:39.059Z",
    "dateUpdated": "2024-11-04T12:15:56.610Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48759\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-20T12:15:14.023\",\"lastModified\":\"2024-06-20T12:43:25.663\",\"vulnStatus\":\"Awaiting Analysis\",\"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 \u0027233ed09d7fda (\\\"chardev: add helper function to register char\\ndevs with a struct device\\\")\u0027), use it instead of cdev add/del().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1dbb206730f3e5ce90014ad569ddf8167ec4124a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/70cb4295ec806b663665e1d2ed15caab6159880e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/74d85e9fbc7022a4011102c7474a9c7aeb704a35\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/85aba11a8ea92a8eef2de95ebbe063086fd62d9c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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