CVE-2026-98876

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98876", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.377Z", "datePublished": "2026-10-23T11:37:21.776Z", "dateUpdated": "2026-10-26T06:55:58.587Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-26T06:55:58.587Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhost1x: bus: Fix missing ops null check in error teardown\n\nIn host1x_device_init(), the error teardown paths do not check\nclient->ops before dereferencing it, unlike the forward init paths\nwhich correctly guard with 'client->ops &&'. This can result in a\nNULL pointer dereference if client->ops is NULL.\n\nFix by adding the missing client->ops check in both the teardown\nand teardown_late labels."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/host1x/bus.c"], "versions": [{"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "d8d5b6e02fc281dea33d6b0b0fadaccea56f2067", "status": "affected", "versionType": "git"}, {"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "f1fa6c936fa9de80ae446ba5e76e227e991b8e56", "status": "affected", "versionType": "git"}, {"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "74bd1f05d9ba2d6672d30ccafe80a38104c1f73f", "status": "affected", "versionType": "git"}, {"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "62851e7b0e55de6fe08da08bc41fd587fbcb0e9b", "status": "affected", "versionType": "git"}, {"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "29375e071ea201fe97bafe1d2ad9d9f30311abfb", "status": "affected", "versionType": "git"}, {"version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "lessThan": "71d25f668bc5c0f36ea843462e12307dea45aaa3", "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/gpu/host1x/bus.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "4.16", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d8d5b6e02fc281dea33d6b0b0fadaccea56f2067"}, {"url": "https://git.kernel.org/stable/c/f1fa6c936fa9de80ae446ba5e76e227e991b8e56"}, {"url": "https://git.kernel.org/stable/c/74bd1f05d9ba2d6672d30ccafe80a38104c1f73f"}, {"url": "https://git.kernel.org/stable/c/62851e7b0e55de6fe08da08bc41fd587fbcb0e9b"}, {"url": "https://git.kernel.org/stable/c/29375e071ea201fe97bafe1d2ad9d9f30311abfb"}, {"url": "https://git.kernel.org/stable/c/71d25f668bc5c0f36ea843462e12307dea45aaa3"}], "title": "host1x: bus: Fix missing ops null check in error teardown", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/host1x/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d8d5b6e02fc281dea33d6b0b0fadaccea56f2067", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}, {"lessThan": "f1fa6c936fa9de80ae446ba5e76e227e991b8e56", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}, {"lessThan": "74bd1f05d9ba2d6672d30ccafe80a38104c1f73f", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}, {"lessThan": "62851e7b0e55de6fe08da08bc41fd587fbcb0e9b", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}, {"lessThan": "29375e071ea201fe97bafe1d2ad9d9f30311abfb", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}, {"lessThan": "71d25f668bc5c0f36ea843462e12307dea45aaa3", "status": "affected", "version": "8f7da1578e90bf1af30269dc6dd8806c96e9c683", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/host1x/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.16"}, {"lessThan": "4.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nhost1x: bus: Fix missing ops null check in error teardown\n\nIn host1x_device_init(), the error teardown paths do not check\nclient->ops before dereferencing it, unlike the forward init paths\nwhich correctly guard with 'client->ops &&'. This can result in a\nNULL pointer dereference if client->ops is NULL.\n\nFix by adding the missing client->ops check in both the teardown\nand teardown_late labels."}], "id": "CVE-2026-98876", "lastModified": "2026-10-26T07:17:12.047", "metrics": {}, "published": "2026-10-23T12:18:21.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/29375e071ea201fe97bafe1d2ad9d9f30311abfb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/62851e7b0e55de6fe08da08bc41fd587fbcb0e9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/71d25f668bc5c0f36ea843462e12307dea45aaa3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/74bd1f05d9ba2d6672d30ccafe80a38104c1f73f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d8d5b6e02fc281dea33d6b0b0fadaccea56f2067"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1fa6c936fa9de80ae446ba5e76e227e991b8e56"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: host1x: bus: Fix missing ops null check in error teardown", "id": "2559544", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559544"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's Host1x bus driver. This vulnerability can lead to a Denial of Service (DoS) by causing a system crash. During device initialization error handling, the driver attempts to access client operations without first verifying their presence. A local user capable of triggering these initialization failure conditions can cause a null pointer dereference that halts the operating system."], "name": "CVE-2026-98876", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98876\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98876\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98876.mbox"], "threat_severity": "Moderate"}

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