{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49339", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.541Z", "datePublished": "2025-02-26T02:10:56.704Z", "dateUpdated": "2025-05-04T08:35:37.695Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:35:37.695Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv6: unexport __init-annotated seg6_hmac_init()\n\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\n\nmodpost used to detect it, but it has been broken for a decade.\n\nRecently, I fixed modpost so it started to warn it again, then this\nshowed up in linux-next builds.\n\nThere are two ways to fix it:\n\n - Remove __init\n - Remove EXPORT_SYMBOL\n\nI chose the latter for this case because the caller (net/ipv6/seg6.c)\nand the callee (net/ipv6/seg6_hmac.c) belong to the same module.\nIt seems an internal function call in ipv6.ko."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/seg6_hmac.c"], "versions": [{"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "64aef8efe96c1616142c4476a05731306fc4494e", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "ab8b2c2de273ec1d698a18e399896a6febb5cda0", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "317260b3eb6384a05a8af212308fa50f3b2e8290", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "5d9c1b081ad28c852a97e10dd75412546497694a", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "1084716f76c8045eadf92a9d9a62641f3c8d8c90", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "3e6de5037148c5a93a436b1e8d2edad3dac11755", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "9ba4416b831eeb4d185e88e73488d1d21288e63a", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "5801f064e35181c71857a80ff18af4dbec3c5f5c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/seg6_hmac.c"], "versions": [{"version": "4.10", "status": "affected"}, {"version": "0", "lessThan": "4.10", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.283", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.247", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.198", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.122", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "4.10", "versionEndExcluding": "4.14.283"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "4.19.247"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.4.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.10.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.15.47"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.17.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.18.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/64aef8efe96c1616142c4476a05731306fc4494e"}, {"url": "https://git.kernel.org/stable/c/ab8b2c2de273ec1d698a18e399896a6febb5cda0"}, {"url": "https://git.kernel.org/stable/c/317260b3eb6384a05a8af212308fa50f3b2e8290"}, {"url": "https://git.kernel.org/stable/c/5d9c1b081ad28c852a97e10dd75412546497694a"}, {"url": "https://git.kernel.org/stable/c/1084716f76c8045eadf92a9d9a62641f3c8d8c90"}, {"url": "https://git.kernel.org/stable/c/3e6de5037148c5a93a436b1e8d2edad3dac11755"}, {"url": "https://git.kernel.org/stable/c/9ba4416b831eeb4d185e88e73488d1d21288e63a"}, {"url": "https://git.kernel.org/stable/c/5801f064e35181c71857a80ff18af4dbec3c5f5c"}], "title": "net: ipv6: unexport __init-annotated seg6_hmac_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv6: unexport __init-annotated seg6_hmac_init()\n\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\n\nmodpost used to detect it, but it has been broken for a decade.\n\nRecently, I fixed modpost so it started to warn it again, then this\nshowed up in linux-next builds.\n\nThere are two ways to fix it:\n\n - Remove __init\n - Remove EXPORT_SYMBOL\n\nI chose the latter for this case because the caller (net/ipv6/seg6.c)\nand the callee (net/ipv6/seg6_hmac.c) belong to the same module.\nIt seems an internal function call in ipv6.ko."}], "id": "CVE-2022-49339", "lastModified": "2025-02-26T07:01:10.657", "metrics": {}, "published": "2025-02-26T07:01:10.657", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1084716f76c8045eadf92a9d9a62641f3c8d8c90"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/317260b3eb6384a05a8af212308fa50f3b2e8290"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3e6de5037148c5a93a436b1e8d2edad3dac11755"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5801f064e35181c71857a80ff18af4dbec3c5f5c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d9c1b081ad28c852a97e10dd75412546497694a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/64aef8efe96c1616142c4476a05731306fc4494e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9ba4416b831eeb4d185e88e73488d1d21288e63a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab8b2c2de273ec1d698a18e399896a6febb5cda0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"affected_release": [{"advisory": "RHSA-2023:2951", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-477.10.1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}, {"advisory": "RHSA-2023:6583", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6583", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "kernel: net: ipv6: unexport __init-annotated seg6_hmac_init()", "id": "2348103", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348103"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: ipv6: unexport __init-annotated seg6_hmac_init()\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\nmodpost used to detect it, but it has been broken for a decade.\nRecently, I fixed modpost so it started to warn it again, then this\nshowed up in linux-next builds.\nThere are two ways to fix it:\n- Remove __init\n- Remove EXPORT_SYMBOL\nI chose the latter for this case because the caller (net/ipv6/seg6.c)\nand the callee (net/ipv6/seg6_hmac.c) belong to the same module.\nIt seems an internal function call in ipv6.ko."], "name": "CVE-2022-49339", "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": "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-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49339\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49339\nhttps://lore.kernel.org/linux-cve-announce/2025022640-CVE-2022-49339-8220@gregkh/T"], "threat_severity": "Moderate"}