CVE-2026-98886

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If the interrupt never\nadvances the transaction state, the loop can wait forever.\n\nReturn -ETIMEDOUT when the completion wait expires, propagate interrupted\nwaits, and make the I2C master_xfer callback return the first transfer\nerror instead of reporting a successful message count."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c"], "versions": [{"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "09a950950e7e4e74e021e60941c8e816ef1b4f71", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "898d209157fe2a245f7d9fe28c5921037d8b5033", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "15c6d7f7127a53b7312232178ecf03e5850161d2", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "8add43887cca1fe11a0ded62199ce726901d3f20", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "f85e8224bd4e1a0939cbfe13a6220fbddf61127c", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "c268df0653ab07bafc3d191e74ea097e3d9b9e69", "status": "affected", "versionType": "git"}, {"version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "lessThan": "9b5ce5c496efd20c1c662cedba88465d39ec1f93", "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/drm/gma500/oaktrail_hdmi_i2c.c"], "versions": [{"version": "3.1", "status": "affected"}, {"version": "0", "lessThan": "3.1", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "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": "3.1", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71"}, {"url": "https://git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033"}, {"url": "https://git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2"}, {"url": "https://git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20"}, {"url": "https://git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c"}, {"url": "https://git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69"}, {"url": "https://git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93"}], "title": "drm/gma500: return errors from Oaktrail HDMI I2C reads", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "09a950950e7e4e74e021e60941c8e816ef1b4f71", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "898d209157fe2a245f7d9fe28c5921037d8b5033", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "15c6d7f7127a53b7312232178ecf03e5850161d2", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "8add43887cca1fe11a0ded62199ce726901d3f20", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "f85e8224bd4e1a0939cbfe13a6220fbddf61127c", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "c268df0653ab07bafc3d191e74ea097e3d9b9e69", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}, {"lessThan": "9b5ce5c496efd20c1c662cedba88465d39ec1f93", "status": "affected", "version": "1e585b52fd8ea59792634bc31d227eb3456af22e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.1"}, {"lessThan": "3.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "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\ndrm/gma500: return errors from Oaktrail HDMI I2C reads\n\nxfer_read() waits for the HDMI I2C transaction to reach\nI2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from\nwait_for_completion_interruptible_timeout(). If the interrupt never\nadvances the transaction state, the loop can wait forever.\n\nReturn -ETIMEDOUT when the completion wait expires, propagate interrupted\nwaits, and make the I2C master_xfer callback return the first transfer\nerror instead of reporting a successful message count."}], "id": "CVE-2026-98886", "lastModified": "2026-10-26T07:17:13.610", "metrics": {}, "published": "2026-10-23T12:18:22.340", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/gma500: return errors from Oaktrail HDMI I2C reads", "id": "2559569", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559569"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/gma500: return errors from Oaktrail HDMI I2C reads\nxfer_read() waits for the HDMI I2C transaction to reach\nI2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from\nwait_for_completion_interruptible_timeout(). If the interrupt never\nadvances the transaction state, the loop can wait forever.\nReturn -ETIMEDOUT when the completion wait expires, propagate interrupted\nwaits, and make the I2C master_xfer callback return the first transfer\nerror instead of reporting a successful message count.", "A flaw was found in the Linux kernel's gma500 graphics driver. This vulnerability can lead to a Denial of Service (DoS) when communicating over the display interface. Specifically, the driver ignores timeout and interruption signals while waiting for an HDMI (High-Definition Multimedia Interface) I2C transfer to complete. A local user could trigger an incomplete read operation, causing the kernel to enter an infinite loop and hang the system."], "name": "CVE-2026-98886", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "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-2026-98886\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98886\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98886.mbox"], "threat_severity": "Moderate"}

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"confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.271,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.222,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.189,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.158,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.111,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.53,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T14:15:06.653226+00:00", "updated": "2026-10-27T10:45:06.395782+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}