CVE-2026-99219

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99219", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.401Z", "datePublished": "2026-11-02T16:06:31.529Z", "dateUpdated": "2026-11-03T19:12:54.203Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-11-03T19:12:54.203Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Initialize modname and offset in print_rec()\n\nprint_rec() leaves 'modname' and 'offset' uninitialized and\nkallsyms_lookup() only sets them on success. When the lookup fails like\nwhen a module is being loaded or unloaded, 'modname' holds a garbage\nvalue, passes the 'if (modname)' check, and is dereferenced by\nseq_printf().\n\n Oops: general protection fault\n RIP: 0010:string+0x48/0xe0\n Call Trace:\n vsnprintf+0x1f5/0x650\n seq_printf+0x8e/0xb0\n print_rec+0x6c/0xc0\n t_show+0x4c/0x440\n seq_read_iter+0x119/0x480\n\nThis can be triggered by reading available_filter_functions while a\nmodule is being loaded or unloaded.\n\nInitialize both variables so a failed lookup skips the module name."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/ftrace.c"], "versions": [{"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "753d5cba113a52cb155428f4ea93a4b0148c4bf1", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "0e5ff07be834abaf4280e1dca7f9591e339d0960", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "e2e6fb972bfec4a0551bc7c185bdb17f78f94997", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "8932e5a4df110a25578728526bb5a3dbc849d8a2", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "7271c064dd60d4456c5b90da757acd9420d06697", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "d97dba9ff13987d1fc415408557a54adde980311", "status": "affected", "versionType": "git"}, {"version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "lessThan": "e1f339ff3b83857b93baf8b88186275a413d445e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/ftrace.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.161", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.115", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.60", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.14", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3.1", "lessThanOrEqual": "7.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.4-rc1", "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": "5.19", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.6.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.12.115"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.18.60"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.2.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.3.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.4-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/753d5cba113a52cb155428f4ea93a4b0148c4bf1"}, {"url": "https://git.kernel.org/stable/c/0e5ff07be834abaf4280e1dca7f9591e339d0960"}, {"url": "https://git.kernel.org/stable/c/e2e6fb972bfec4a0551bc7c185bdb17f78f94997"}, {"url": "https://git.kernel.org/stable/c/8932e5a4df110a25578728526bb5a3dbc849d8a2"}, {"url": "https://git.kernel.org/stable/c/7271c064dd60d4456c5b90da757acd9420d06697"}, {"url": "https://git.kernel.org/stable/c/d97dba9ff13987d1fc415408557a54adde980311"}, {"url": "https://git.kernel.org/stable/c/e1f339ff3b83857b93baf8b88186275a413d445e"}], "title": "ftrace: Initialize modname and offset in print_rec()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/trace/ftrace.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "753d5cba113a52cb155428f4ea93a4b0148c4bf1", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "0e5ff07be834abaf4280e1dca7f9591e339d0960", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "e2e6fb972bfec4a0551bc7c185bdb17f78f94997", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "8932e5a4df110a25578728526bb5a3dbc849d8a2", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "7271c064dd60d4456c5b90da757acd9420d06697", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "d97dba9ff13987d1fc415408557a54adde980311", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}, {"lessThan": "e1f339ff3b83857b93baf8b88186275a413d445e", "status": "affected", "version": "b39181f7c6907dc66ff937b74758671fa6ba430c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/trace/ftrace.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.161", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.115", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.60", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.14", "versionType": "semver"}, {"lessThanOrEqual": "7.3.*", "status": "unaffected", "version": "7.3.1", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.4-rc1", "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\nftrace: Initialize modname and offset in print_rec()\n\nprint_rec() leaves 'modname' and 'offset' uninitialized and\nkallsyms_lookup() only sets them on success. When the lookup fails like\nwhen a module is being loaded or unloaded, 'modname' holds a garbage\nvalue, passes the 'if (modname)' check, and is dereferenced by\nseq_printf().\n\n Oops: general protection fault\n RIP: 0010:string+0x48/0xe0\n Call Trace:\n vsnprintf+0x1f5/0x650\n seq_printf+0x8e/0xb0\n print_rec+0x6c/0xc0\n t_show+0x4c/0x440\n seq_read_iter+0x119/0x480\n\nThis can be triggered by reading available_filter_functions while a\nmodule is being loaded or unloaded.\n\nInitialize both variables so a failed lookup skips the module name."}], "id": "CVE-2026-99219", "lastModified": "2026-11-03T20:18:27.083", "metrics": {}, "published": "2026-11-02T16:17:45.940", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e5ff07be834abaf4280e1dca7f9591e339d0960"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7271c064dd60d4456c5b90da757acd9420d06697"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/753d5cba113a52cb155428f4ea93a4b0148c4bf1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8932e5a4df110a25578728526bb5a3dbc849d8a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d97dba9ff13987d1fc415408557a54adde980311"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e1f339ff3b83857b93baf8b88186275a413d445e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2e6fb972bfec4a0551bc7c185bdb17f78f94997"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Denial of Service via uninitialized pointer dereference in ftrace", "id": "2565255", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2565255"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel's ftrace (function tracing) subsystem. This vulnerability allows a local user to cause a Denial of Service (DoS) by crashing the system. The issue occurs when reading tracing filter information while a kernel module is simultaneously loaded or unloaded, causing the kernel to dereference uninitialized memory following a failed symbol lookup."], "name": "CVE-2026-99219", "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": "Out of support scope", "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"}, {"cpe": "cpe:/a:redhat:openshift:5", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-10", "product_name": "Red Hat OpenShift Container Platform 5"}, {"cpe": "cpe:/a:redhat:openshift:5", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 5"}], "public_date": "2026-11-02T16:06:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99219\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99219\nhttps://git.kernel.org/stable/c/0e5ff07be834abaf4280e1dca7f9591e339d0960\nhttps://git.kernel.org/stable/c/7271c064dd60d4456c5b90da757acd9420d06697\nhttps://git.kernel.org/stable/c/753d5cba113a52cb155428f4ea93a4b0148c4bf1\nhttps://git.kernel.org/stable/c/8932e5a4df110a25578728526bb5a3dbc849d8a2\nhttps://git.kernel.org/stable/c/d97dba9ff13987d1fc415408557a54adde980311\nhttps://git.kernel.org/stable/c/e2e6fb972bfec4a0551bc7c185bdb17f78f94997"], "statement": "This vulnerability is rated as Moderate severity because it requires local access and precise timing during concurrent kernel module operations to induce a system crash. In typical Red Hat deployments, access to the kernel tracing pseudo-filesystem is restricted to administrative users, significantly reducing exposure to unprivileged accounts. Additionally, the flaw only leads to a local denial of service without exposing sensitive information or enabling unauthorized privilege escalation.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,753d5cba113a52cb155428f4ea93a4b0148c4bf1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,0e5ff07be834abaf4280e1dca7f9591e339d0960)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,e2e6fb972bfec4a0551bc7c185bdb17f78f94997)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,8932e5a4df110a25578728526bb5a3dbc849d8a2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,7271c064dd60d4456c5b90da757acd9420d06697)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,d97dba9ff13987d1fc415408557a54adde980311)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.191,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.161,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.115,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.60,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.14,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3.1,7.4.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,753d5cba113a52cb155428f4ea93a4b0148c4bf1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,0e5ff07be834abaf4280e1dca7f9591e339d0960)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,e2e6fb972bfec4a0551bc7c185bdb17f78f94997)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,8932e5a4df110a25578728526bb5a3dbc849d8a2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,7271c064dd60d4456c5b90da757acd9420d06697)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b39181f7c6907dc66ff937b74758671fa6ba430c,d97dba9ff13987d1fc415408557a54adde980311)"}}], "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"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.191,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.161,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.115,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.60,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.14,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3.1,7.4.0)"}}], "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": "2026-11-02T17:45:12.194936+00:00", "updated": "2026-11-04T15:45:15.012770+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}