CVE-2022-50266

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This is because before that we set the\nKPROBE_FLAG_GONE flag for kprobe so that \"!kprobe_disabled(p)\" is always\nfalse.\n\nThe disarm_kprobe_ftrace() call introduced by commit:\n\n 0cb2f1372baa (\"kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler\")\n\nto fix the NULL pointer reference problem. When the probe is enabled, if\nwe do not disarm it, this problem still exists.\n\nFix it by putting the probe enabled check before setting the\nKPROBE_FLAG_GONE flag."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/kprobes.c"], "versions": [{"version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e", "lessThan": "f20a067f13106565816b4b6a6b665b2088a63824", "status": "affected", "versionType": "git"}, {"version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e", "lessThan": "c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7", "status": "affected", "versionType": "git"}, {"version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e", "lessThan": "0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb", "status": "affected", "versionType": "git"}, {"version": "3c5f8d371b7fef3e3714c4a062c7f3b4aa41d122", "status": "affected", "versionType": "git"}, {"version": "9b55d84deec88c02b053a819acf08a6d471dda02", "status": "affected", "versionType": "git"}, {"version": "2295608b44c91df767a5c68027f9c9e52ecb28e7", "status": "affected", "versionType": "git"}, {"version": "ce7ff920092130f249b75f9fe177edb3362fefe8", "status": "affected", "versionType": "git"}, {"version": "3995f7a60feceba6c8f762f4aff3184f90a1291d", "status": "affected", "versionType": "git"}, {"version": "247c62ebdfae450bb76dd89cd4724df6be07df75", "status": "affected", "versionType": "git"}, {"version": "4.4.238", "lessThan": "4.5", "status": "affected", "versionType": "semver"}, {"version": "4.9.238", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.14.200", "lessThan": "4.15", "status": "affected", "versionType": "semver"}, {"version": "4.19.149", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.4.69", "lessThan": "5.5", "status": "affected", "versionType": "semver"}, {"version": "5.8.13", "lessThan": "5.9", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/kprobes.c"], "versions": [{"version": "5.9", "status": "affected"}, {"version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "5.9", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.238"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.238"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.200"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.149"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.69"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824"}, {"url": "https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7"}, {"url": "https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb"}], "title": "kprobes: Fix check for probe enabled in kill_kprobe()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-50266", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:08:08.331534Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:10:31.712Z"}}]}}

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This is because before that we set the\nKPROBE_FLAG_GONE flag for kprobe so that \"!kprobe_disabled(p)\" is always\nfalse.\n\nThe disarm_kprobe_ftrace() call introduced by commit:\n\n 0cb2f1372baa (\"kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler\")\n\nto fix the NULL pointer reference problem. When the probe is enabled, if\nwe do not disarm it, this problem still exists.\n\nFix it by putting the probe enabled check before setting the\nKPROBE_FLAG_GONE flag."}], "id": "CVE-2022-50266", "lastModified": "2026-11-05T20:17:30.700", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-50266", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:08:08.331534Z", "version": "2.0.3"}}]}, "published": "2025-09-15T15:15:37.347", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: kprobes: Fix check for probe enabled in kill_kprobe()", "id": "2395296", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395296"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50266", "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": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50266\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50266\nhttps://lore.kernel.org/linux-cve-announce/2025091504-CVE-2022-50266-9532@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-17T10:08:25.533342+00:00", "updated": "2025-09-17T10:08:25.533394+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}