{"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"}}}}