CVE-2023-53362 (GCVE-0-2023-53362)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-01-14 18:53
VLAI?
Title
bus: fsl-mc: don't assume child devices are all fsl-mc devices
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: don't assume child devices are all fsl-mc devices Changes in VFIO caused a pseudo-device to be created as child of fsl-mc devices causing a crash [1] when trying to bind a fsl-mc device to VFIO. Fix this by checking the device type when enumerating fsl-mc child devices. [1] Modules linked in: Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP CPU: 6 PID: 1289 Comm: sh Not tainted 6.2.0-rc5-00047-g7c46948a6e9c #2 Hardware name: NXP Layerscape LX2160ARDB (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mc_send_command+0x24/0x1f0 lr : dprc_get_obj_region+0xfc/0x1c0 sp : ffff80000a88b900 x29: ffff80000a88b900 x28: ffff48a9429e1400 x27: 00000000000002b2 x26: ffff48a9429e1718 x25: 0000000000000000 x24: 0000000000000000 x23: ffffd59331ba3918 x22: ffffd59331ba3000 x21: 0000000000000000 x20: ffff80000a88b9b8 x19: 0000000000000000 x18: 0000000000000001 x17: 7270642f636d2d6c x16: 73662e3030303030 x15: ffffffffffffffff x14: ffffd59330f1d668 x13: ffff48a8727dc389 x12: ffff48a8727dc386 x11: 0000000000000002 x10: 00008ceaf02f35d4 x9 : 0000000000000012 x8 : 0000000000000000 x7 : 0000000000000006 x6 : ffff80000a88bab0 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a88b9e8 x2 : ffff80000a88b9e8 x1 : 0000000000000000 x0 : ffff48a945142b80 Call trace: mc_send_command+0x24/0x1f0 dprc_get_obj_region+0xfc/0x1c0 fsl_mc_device_add+0x340/0x590 fsl_mc_obj_device_add+0xd0/0xf8 dprc_scan_objects+0x1c4/0x340 dprc_scan_container+0x38/0x60 vfio_fsl_mc_probe+0x9c/0xf8 fsl_mc_driver_probe+0x24/0x70 really_probe+0xbc/0x2a8 __driver_probe_device+0x78/0xe0 device_driver_attach+0x30/0x68 bind_store+0xa8/0x130 drv_attr_store+0x24/0x38 sysfs_kf_write+0x44/0x60 kernfs_fop_write_iter+0x128/0x1b8 vfs_write+0x334/0x448 ksys_write+0x68/0xf0 __arm64_sys_write+0x1c/0x28 invoke_syscall+0x44/0x108 el0_svc_common.constprop.1+0x94/0xf8 do_el0_svc+0x38/0xb0 el0_svc+0x20/0x50 el0t_64_sync_handler+0x98/0xc0 el0t_64_sync+0x174/0x178 Code: aa0103f4 a9025bf5 d5384100 b9400801 (79401260) ---[ end trace 0000000000000000 ]---
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3c28a76124b25882411f005924be73795b6ef078 , < 5bd9dc3e767edf582be483be8d6bbc7433bd4cf8 (git)
Affected: 3c28a76124b25882411f005924be73795b6ef078 , < 8bdd5c21ec02835bd445d022f4c23195aff407d2 (git)
Affected: 3c28a76124b25882411f005924be73795b6ef078 , < 303c9c63abb9390e906052863f82bb4e9824e5c0 (git)
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    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "adp": [
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        "metrics": [
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              "attackVector": "LOCAL",
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          "vendor": "Linux",
          "versions": [
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              "version": "6.1.39",
              "versionType": "semver"
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              "version": "6.4.4",
              "versionType": "semver"
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              "versionType": "original_commit_for_fix"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: fsl-mc: don\u0027t assume child devices are all fsl-mc devices\n\nChanges in VFIO caused a pseudo-device to be created as child of\nfsl-mc devices causing a crash [1] when trying to bind a fsl-mc\ndevice to VFIO. Fix this by checking the device type when enumerating\nfsl-mc child devices.\n\n[1]\nModules linked in:\nInternal error: Oops: 0000000096000004 [#1] PREEMPT SMP\nCPU: 6 PID: 1289 Comm: sh Not tainted 6.2.0-rc5-00047-g7c46948a6e9c #2\nHardware name: NXP Layerscape LX2160ARDB (DT)\npstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : mc_send_command+0x24/0x1f0\nlr : dprc_get_obj_region+0xfc/0x1c0\nsp : ffff80000a88b900\nx29: ffff80000a88b900 x28: ffff48a9429e1400 x27: 00000000000002b2\nx26: ffff48a9429e1718 x25: 0000000000000000 x24: 0000000000000000\nx23: ffffd59331ba3918 x22: ffffd59331ba3000 x21: 0000000000000000\nx20: ffff80000a88b9b8 x19: 0000000000000000 x18: 0000000000000001\nx17: 7270642f636d2d6c x16: 73662e3030303030 x15: ffffffffffffffff\nx14: ffffd59330f1d668 x13: ffff48a8727dc389 x12: ffff48a8727dc386\nx11: 0000000000000002 x10: 00008ceaf02f35d4 x9 : 0000000000000012\nx8 : 0000000000000000 x7 : 0000000000000006 x6 : ffff80000a88bab0\nx5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a88b9e8\nx2 : ffff80000a88b9e8 x1 : 0000000000000000 x0 : ffff48a945142b80\nCall trace:\n mc_send_command+0x24/0x1f0\n dprc_get_obj_region+0xfc/0x1c0\n fsl_mc_device_add+0x340/0x590\n fsl_mc_obj_device_add+0xd0/0xf8\n dprc_scan_objects+0x1c4/0x340\n dprc_scan_container+0x38/0x60\n vfio_fsl_mc_probe+0x9c/0xf8\n fsl_mc_driver_probe+0x24/0x70\n really_probe+0xbc/0x2a8\n __driver_probe_device+0x78/0xe0\n device_driver_attach+0x30/0x68\n bind_store+0xa8/0x130\n drv_attr_store+0x24/0x38\n sysfs_kf_write+0x44/0x60\n kernfs_fop_write_iter+0x128/0x1b8\n vfs_write+0x334/0x448\n ksys_write+0x68/0xf0\n __arm64_sys_write+0x1c/0x28\n invoke_syscall+0x44/0x108\n el0_svc_common.constprop.1+0x94/0xf8\n do_el0_svc+0x38/0xb0\n el0_svc+0x20/0x50\n el0t_64_sync_handler+0x98/0xc0\n el0t_64_sync+0x174/0x178\nCode: aa0103f4 a9025bf5 d5384100 b9400801 (79401260)\n---[ end trace 0000000000000000 ]---"
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    "vulnrichment": {
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Fix this by checking the device type when enumerating\\nfsl-mc child devices.\\n\\n[1]\\nModules linked in:\\nInternal error: Oops: 0000000096000004 [#1] PREEMPT SMP\\nCPU: 6 PID: 1289 Comm: sh Not tainted 6.2.0-rc5-00047-g7c46948a6e9c #2\\nHardware name: NXP Layerscape LX2160ARDB (DT)\\npstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\npc : mc_send_command+0x24/0x1f0\\nlr : dprc_get_obj_region+0xfc/0x1c0\\nsp : ffff80000a88b900\\nx29: ffff80000a88b900 x28: ffff48a9429e1400 x27: 00000000000002b2\\nx26: ffff48a9429e1718 x25: 0000000000000000 x24: 0000000000000000\\nx23: ffffd59331ba3918 x22: ffffd59331ba3000 x21: 0000000000000000\\nx20: ffff80000a88b9b8 x19: 0000000000000000 x18: 0000000000000001\\nx17: 7270642f636d2d6c x16: 73662e3030303030 x15: ffffffffffffffff\\nx14: ffffd59330f1d668 x13: ffff48a8727dc389 x12: ffff48a8727dc386\\nx11: 0000000000000002 x10: 00008ceaf02f35d4 x9 : 0000000000000012\\nx8 : 0000000000000000 x7 : 0000000000000006 x6 : ffff80000a88bab0\\nx5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a88b9e8\\nx2 : ffff80000a88b9e8 x1 : 0000000000000000 x0 : ffff48a945142b80\\nCall trace:\\n mc_send_command+0x24/0x1f0\\n dprc_get_obj_region+0xfc/0x1c0\\n fsl_mc_device_add+0x340/0x590\\n fsl_mc_obj_device_add+0xd0/0xf8\\n dprc_scan_objects+0x1c4/0x340\\n dprc_scan_container+0x38/0x60\\n vfio_fsl_mc_probe+0x9c/0xf8\\n fsl_mc_driver_probe+0x24/0x70\\n really_probe+0xbc/0x2a8\\n __driver_probe_device+0x78/0xe0\\n device_driver_attach+0x30/0x68\\n bind_store+0xa8/0x130\\n drv_attr_store+0x24/0x38\\n sysfs_kf_write+0x44/0x60\\n kernfs_fop_write_iter+0x128/0x1b8\\n vfs_write+0x334/0x448\\n ksys_write+0x68/0xf0\\n __arm64_sys_write+0x1c/0x28\\n invoke_syscall+0x44/0x108\\n el0_svc_common.constprop.1+0x94/0xf8\\n do_el0_svc+0x38/0xb0\\n el0_svc+0x20/0x50\\n el0t_64_sync_handler+0x98/0xc0\\n el0t_64_sync+0x174/0x178\\nCode: aa0103f4 a9025bf5 d5384100 b9400801 (79401260)\\n---[ end trace 0000000000000000 ]---\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/bus/fsl-mc/dprc-driver.c\"], \"versions\": [{\"version\": \"3c28a76124b25882411f005924be73795b6ef078\", \"lessThan\": \"5bd9dc3e767edf582be483be8d6bbc7433bd4cf8\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"3c28a76124b25882411f005924be73795b6ef078\", \"lessThan\": \"8bdd5c21ec02835bd445d022f4c23195aff407d2\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"3c28a76124b25882411f005924be73795b6ef078\", \"lessThan\": \"303c9c63abb9390e906052863f82bb4e9824e5c0\", \"status\": \"affected\", \"versionType\": \"git\"}]}, {\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"affected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/bus/fsl-mc/dprc-driver.c\"], \"versions\": [{\"version\": \"6.1\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"6.1\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.1.39\", \"lessThanOrEqual\": \"6.1.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.4.4\", \"lessThanOrEqual\": \"6.4.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.5\", \"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\": \"6.1\", \"versionEndExcluding\": \"6.1.39\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.1\", \"versionEndExcluding\": \"6.4.4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.1\", \"versionEndExcluding\": \"6.5\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5bd9dc3e767edf582be483be8d6bbc7433bd4cf8\"}, {\"url\": \"https://git.kernel.org/stable/c/8bdd5c21ec02835bd445d022f4c23195aff407d2\"}, {\"url\": \"https://git.kernel.org/stable/c/303c9c63abb9390e906052863f82bb4e9824e5c0\"}], \"title\": \"bus: fsl-mc: don\u0027t assume child devices are all fsl-mc devices\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53362\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:44:31.719491Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-01-14T18:44:25.985Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
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}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.