CVE-2026-93200

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93200", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.092Z", "datePublished": "2026-09-17T16:12:21.751Z", "dateUpdated": "2026-10-30T12:36:22.707Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:36:22.707Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix use-after-free of master->this\n\nsysfs attribute callbacks for the master controller device dereference\nmaster->this. However, master->this is freed in\ni3c_master_detach_free_devs() before the master device itself is\nreleased.\n\nAs a result, sysfs accesses can dereference a freed master->this\npointer, leading to a use-after-free.\n\nKeep master->this alive until i3c_masterdev_release(), which is called\nafter the master device and its sysfs state are being torn down. Do not\nfree master->this as part of the normal device detach path.\n\nOn the error path in i3c_master_set_info(), reset master->this and\nbus.cur_master to NULL before freeing the allocated device."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/i3c/master.c"], "versions": [{"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "a9b9cae0bd887ef0d438887f20b0a417491e45f0", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "94af669037d129914828a851d8b2a79b4537b73f", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "e766605a0490723df7b61e6abd0c392889732dd7", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "027679d613ea73b8a00831369ec34eea804ce1bd", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "23a1c4288a60e253a05a882bd8928ed61beb4a48", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "4f3145db05fede36b35f8249b8acde5bd5d54864", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "50034d8d0f797c3a7a599f750a7d3e792e80dea5", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "feb0ed76601f3c2f91f08688c5a7d8b9d382f720", "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/i3c/master.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "5.0", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a9b9cae0bd887ef0d438887f20b0a417491e45f0"}, {"url": "https://git.kernel.org/stable/c/94af669037d129914828a851d8b2a79b4537b73f"}, {"url": "https://git.kernel.org/stable/c/e766605a0490723df7b61e6abd0c392889732dd7"}, {"url": "https://git.kernel.org/stable/c/027679d613ea73b8a00831369ec34eea804ce1bd"}, {"url": "https://git.kernel.org/stable/c/23a1c4288a60e253a05a882bd8928ed61beb4a48"}, {"url": "https://git.kernel.org/stable/c/4f3145db05fede36b35f8249b8acde5bd5d54864"}, {"url": "https://git.kernel.org/stable/c/50034d8d0f797c3a7a599f750a7d3e792e80dea5"}, {"url": "https://git.kernel.org/stable/c/feb0ed76601f3c2f91f08688c5a7d8b9d382f720"}], "title": "i3c: master: Fix use-after-free of master->this", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/i3c/master.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a9b9cae0bd887ef0d438887f20b0a417491e45f0", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "94af669037d129914828a851d8b2a79b4537b73f", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "e766605a0490723df7b61e6abd0c392889732dd7", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "027679d613ea73b8a00831369ec34eea804ce1bd", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "23a1c4288a60e253a05a882bd8928ed61beb4a48", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "4f3145db05fede36b35f8249b8acde5bd5d54864", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "50034d8d0f797c3a7a599f750a7d3e792e80dea5", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "feb0ed76601f3c2f91f08688c5a7d8b9d382f720", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/i3c/master.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix use-after-free of master->this\n\nsysfs attribute callbacks for the master controller device dereference\nmaster->this. However, master->this is freed in\ni3c_master_detach_free_devs() before the master device itself is\nreleased.\n\nAs a result, sysfs accesses can dereference a freed master->this\npointer, leading to a use-after-free.\n\nKeep master->this alive until i3c_masterdev_release(), which is called\nafter the master device and its sysfs state are being torn down. Do not\nfree master->this as part of the normal device detach path.\n\nOn the error path in i3c_master_set_info(), reset master->this and\nbus.cur_master to NULL before freeing the allocated device."}], "id": "CVE-2026-93200", "lastModified": "2026-10-30T13:21:00.113", "metrics": {}, "published": "2026-09-17T17:18:16.297", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/027679d613ea73b8a00831369ec34eea804ce1bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23a1c4288a60e253a05a882bd8928ed61beb4a48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f3145db05fede36b35f8249b8acde5bd5d54864"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50034d8d0f797c3a7a599f750a7d3e792e80dea5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/94af669037d129914828a851d8b2a79b4537b73f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a9b9cae0bd887ef0d438887f20b0a417491e45f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e766605a0490723df7b61e6abd0c392889732dd7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/feb0ed76601f3c2f91f08688c5a7d8b9d382f720"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0,4f3145db05fede36b35f8249b8acde5bd5d54864)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0,50034d8d0f797c3a7a599f750a7d3e792e80dea5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0,feb0ed76601f3c2f91f08688c5a7d8b9d382f720)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T08:15:14.039517+00:00", "updated": "2026-09-20T07:15:16.399787+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}