{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43155", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.989Z", "datePublished": "2026-05-06T11:27:35.800Z", "dateUpdated": "2026-05-06T11:27:35.800Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T11:27:35.800Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmux: mmio: fix regmap leak on probe failure\n\nThe mmio regmap that may be allocated during probe is never freed.\n\nSwitch to using the device managed allocator so that the regmap is\nreleased on probe failures (e.g. probe deferral) and on driver unbind."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mux/mmio.c"], "versions": [{"version": "61de83fd8256e185588670d3cf0bccc3e913819c", "lessThan": "76096f156fe9dc9fbd6e4618088706e91b9b0a6c", "status": "affected", "versionType": "git"}, {"version": "61de83fd8256e185588670d3cf0bccc3e913819c", "lessThan": "cbde3c109d52564ae2c12e514c33c44345e84b2c", "status": "affected", "versionType": "git"}, {"version": "61de83fd8256e185588670d3cf0bccc3e913819c", "lessThan": "3c4ae63073d84abee5d81ce46d86a94e9dae9c89", "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/mux/mmio.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.16", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/76096f156fe9dc9fbd6e4618088706e91b9b0a6c"}, {"url": "https://git.kernel.org/stable/c/cbde3c109d52564ae2c12e514c33c44345e84b2c"}, {"url": "https://git.kernel.org/stable/c/3c4ae63073d84abee5d81ce46d86a94e9dae9c89"}], "title": "mux: mmio: fix regmap leak on probe failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmux: mmio: fix regmap leak on probe failure\n\nThe mmio regmap that may be allocated during probe is never freed.\n\nSwitch to using the device managed allocator so that the regmap is\nreleased on probe failures (e.g. probe deferral) and on driver unbind."}], "id": "CVE-2026-43155", "lastModified": "2026-05-06T13:07:51.607", "metrics": {}, "published": "2026-05-06T12:16:33.310", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c4ae63073d84abee5d81ce46d86a94e9dae9c89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76096f156fe9dc9fbd6e4618088706e91b9b0a6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cbde3c109d52564ae2c12e514c33c44345e84b2c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: mux: mmio: fix regmap leak on probe failure", "id": "2467200", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467200"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the mux: mmio subsystem of the Linux kernel. During device probing, specifically on probe failures such as probe deferral or driver unbind, a memory-mapped input/output (mmio) regmap resource may not be properly freed. This resource leak can lead to system instability or a Denial of Service (DoS) due to resource exhaustion."], "name": "CVE-2026-43155", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43155\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43155\nhttps://lore.kernel.org/linux-cve-announce/2026050630-CVE-2026-43155-32e0@gregkh/T"]}