CVE-2022-49085 (GCVE-0-2022-49085)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2025-05-04 08:29
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drbd: Fix five use after free bugs in get_initial_state In get_initial_state, it calls notify_initial_state_done(skb,..) if cb->args[5]==1. If genlmsg_put() failed in notify_initial_state_done(), the skb will be freed by nlmsg_free(skb). Then get_initial_state will goto out and the freed skb will be used by return value skb->len, which is a uaf bug. What's worse, the same problem goes even further: skb can also be freed in the notify_*_state_change -> notify_*_state calls below. Thus 4 additional uaf bugs happened. My patch lets the problem callee functions: notify_initial_state_done and notify_*_state_change return an error code if errors happen. So that the error codes could be propagated and the uaf bugs can be avoid. v2 reports a compilation warning. This v3 fixed this warning and built successfully in my local environment with no additional warnings. v2: https://lore.kernel.org/patchwork/patch/1435218/
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0489700bfeb1e53eb2039c2291c67e71b0b40103Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/188fe6b26765edbad4055611c0f788b6870f4024Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/226e993c39405292781bfcf4b039a8db56aab362Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/594205b4936771a250f9d141e7e0fff21c3dd2d9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a972c768723359ec995579902473028fe3cd64b1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aadb22ba2f656581b2f733deb3a467c48cc618f6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b6a4055036eed1f5e239ce3d8b0db1ce38bba447Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dcf6be17b5c53b741898d2223b23e66d682de300Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de63e74da2333b4068bb79983e632db730fea97ePatch
Impacted products
Vendor Product Version
Linux Linux Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
Version: a29728463b254ce81ecefdf20c1a02e01d9361da
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   Linux Linux Version: 4.5
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              "userInteraction": "NONE",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrbd: Fix five use after free bugs in get_initial_state\n\nIn get_initial_state, it calls notify_initial_state_done(skb,..) if\ncb-\u003eargs[5]==1. If genlmsg_put() failed in notify_initial_state_done(),\nthe skb will be freed by nlmsg_free(skb).\nThen get_initial_state will goto out and the freed skb will be used by\nreturn value skb-\u003elen, which is a uaf bug.\n\nWhat\u0027s worse, the same problem goes even further: skb can also be\nfreed in the notify_*_state_change -\u003e notify_*_state calls below.\nThus 4 additional uaf bugs happened.\n\nMy patch lets the problem callee functions: notify_initial_state_done\nand notify_*_state_change return an error code if errors happen.\nSo that the error codes could be propagated and the uaf bugs can be avoid.\n\nv2 reports a compilation warning. This v3 fixed this warning and built\nsuccessfully in my local environment with no additional warnings.\nv2: https://lore.kernel.org/patchwork/patch/1435218/"
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      "title": "drbd: Fix five use after free bugs in get_initial_state",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49085",
    "datePublished": "2025-02-26T01:54:43.579Z",
    "dateReserved": "2025-02-26T01:49:39.248Z",
    "dateUpdated": "2025-05-04T08:29:24.372Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49085\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:45.833\",\"lastModified\":\"2025-03-25T16:21:29.173\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrbd: Fix five use after free bugs in get_initial_state\\n\\nIn get_initial_state, it calls notify_initial_state_done(skb,..) if\\ncb-\u003eargs[5]==1. If genlmsg_put() failed in notify_initial_state_done(),\\nthe skb will be freed by nlmsg_free(skb).\\nThen get_initial_state will goto out and the freed skb will be used by\\nreturn value skb-\u003elen, which is a uaf bug.\\n\\nWhat\u0027s worse, the same problem goes even further: skb can also be\\nfreed in the notify_*_state_change -\u003e notify_*_state calls below.\\nThus 4 additional uaf bugs happened.\\n\\nMy patch lets the problem callee functions: notify_initial_state_done\\nand notify_*_state_change return an error code if errors happen.\\nSo that the error codes could be propagated and the uaf bugs can be avoid.\\n\\nv2 reports a compilation warning. This v3 fixed this warning and built\\nsuccessfully in my local environment with no additional warnings.\\nv2: https://lore.kernel.org/patchwork/patch/1435218/\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drbd: Arregla cinco errores de use-after-free en get_initial_state En get_initial_state, llama a notify_initial_state_done(skb,..) si cb-\u0026gt;args[5]==1. Si genlmsg_put() fall\u00f3 en notify_initial_state_done(), el skb ser\u00e1 liberado por nlmsg_free(skb). Entonces get_initial_state saldr\u00e1 y el skb liberado ser\u00e1 utilizado por el valor de retorno skb-\u0026gt;len, que es un error de uaf. Lo que es peor, el mismo problema va a\u00fan m\u00e1s all\u00e1: skb tambi\u00e9n se puede liberar en las llamadas notify_*_state_change -\u0026gt; notify_*_state a continuaci\u00f3n. Por lo tanto, ocurrieron 4 errores de uaf adicionales. Mi parche permite que las funciones llamadas al problema: notify_initial_state_done y notify_*_state_change devuelvan un c\u00f3digo de error si ocurren errores. Para que los c\u00f3digos de error se puedan propagar y los errores de uaf se puedan evitar, la v2 informa una advertencia de compilaci\u00f3n. Esta v3 corrigi\u00f3 esta advertencia y se compil\u00f3 correctamente en mi entorno local sin advertencias adicionales. v2: https://lore.kernel.org/patchwork/patch/1435218/\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.311\",\"matchCriteriaId\":\"16932DCC-5EC6-4AD4-AFC9-80EA0710A84F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.276\",\"matchCriteriaId\":\"6D9B028C-6313-47F9-94B7-5F8122345E49\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.238\",\"matchCriteriaId\":\"FA28527A-11D3-41D2-9C4C-ECAC0D6A4A2D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.189\",\"matchCriteriaId\":\"8CB6E8F5-C2B1-46F3-A807-0F6104AC340F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.111\",\"matchCriteriaId\":\"96258501-7BCE-4C55-8A38-8AC9D327626D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.34\",\"matchCriteriaId\":\"D25878D3-7761-4E9F-8919-E92CD53896E0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.20\",\"matchCriteriaId\":\"ABBBA66E-0244-4621-966B-9790AF1EEB00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"5.17.3\",\"matchCriteriaId\":\"AE420AC7-1E59-4398-B84F-71F4B4337762\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AD94161-84BB-42E6-9882-4FC0C42E9FC1\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0489700bfeb1e53eb2039c2291c67e71b0b40103\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/188fe6b26765edbad4055611c0f788b6870f4024\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/226e993c39405292781bfcf4b039a8db56aab362\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/594205b4936771a250f9d141e7e0fff21c3dd2d9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a972c768723359ec995579902473028fe3cd64b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aadb22ba2f656581b2f733deb3a467c48cc618f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b6a4055036eed1f5e239ce3d8b0db1ce38bba447\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dcf6be17b5c53b741898d2223b23e66d682de300\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/de63e74da2333b4068bb79983e632db730fea97e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-02-26T01:54:43.579Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrbd: Fix five use after free bugs in get_initial_state\\n\\nIn get_initial_state, it calls notify_initial_state_done(skb,..) if\\ncb-\u003eargs[5]==1. If genlmsg_put() failed in notify_initial_state_done(),\\nthe skb will be freed by nlmsg_free(skb).\\nThen get_initial_state will goto out and the freed skb will be used by\\nreturn value skb-\u003elen, which is a uaf bug.\\n\\nWhat\u0027s worse, the same problem goes even further: skb can also be\\nfreed in the notify_*_state_change -\u003e notify_*_state calls below.\\nThus 4 additional uaf bugs happened.\\n\\nMy patch lets the problem callee functions: notify_initial_state_done\\nand notify_*_state_change return an error code if errors happen.\\nSo that the error codes could be propagated and the uaf bugs can be avoid.\\n\\nv2 reports a compilation warning. This v3 fixed this warning and built\\nsuccessfully in my local environment with no additional warnings.\\nv2: https://lore.kernel.org/patchwork/patch/1435218/\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/block/drbd/drbd_int.h\", \"drivers/block/drbd/drbd_nl.c\", \"drivers/block/drbd/drbd_state.c\", \"drivers/block/drbd/drbd_state_change.h\"], \"versions\": [{\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"0489700bfeb1e53eb2039c2291c67e71b0b40103\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"dcf6be17b5c53b741898d2223b23e66d682de300\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"188fe6b26765edbad4055611c0f788b6870f4024\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"b6a4055036eed1f5e239ce3d8b0db1ce38bba447\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"594205b4936771a250f9d141e7e0fff21c3dd2d9\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"a972c768723359ec995579902473028fe3cd64b1\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"de63e74da2333b4068bb79983e632db730fea97e\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"226e993c39405292781bfcf4b039a8db56aab362\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"a29728463b254ce81ecefdf20c1a02e01d9361da\", \"lessThan\": \"aadb22ba2f656581b2f733deb3a467c48cc618f6\", \"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/block/drbd/drbd_int.h\", \"drivers/block/drbd/drbd_nl.c\", \"drivers/block/drbd/drbd_state.c\", \"drivers/block/drbd/drbd_state_change.h\"], \"versions\": [{\"version\": \"4.5\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"4.5\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.9.311\", \"lessThanOrEqual\": \"4.9.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.14.276\", \"lessThanOrEqual\": \"4.14.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.19.238\", \"lessThanOrEqual\": \"4.19.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.4.189\", \"lessThanOrEqual\": \"5.4.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.10.111\", \"lessThanOrEqual\": \"5.10.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.15.34\", \"lessThanOrEqual\": \"5.15.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.16.20\", \"lessThanOrEqual\": \"5.16.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.17.3\", \"lessThanOrEqual\": \"5.17.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.18\", \"lessThanOrEqual\": \"*\", \"status\": \"unaffected\", \"versionType\": \"original_commit_for_fix\"}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0489700bfeb1e53eb2039c2291c67e71b0b40103\"}, {\"url\": \"https://git.kernel.org/stable/c/dcf6be17b5c53b741898d2223b23e66d682de300\"}, {\"url\": \"https://git.kernel.org/stable/c/188fe6b26765edbad4055611c0f788b6870f4024\"}, {\"url\": \"https://git.kernel.org/stable/c/b6a4055036eed1f5e239ce3d8b0db1ce38bba447\"}, {\"url\": \"https://git.kernel.org/stable/c/594205b4936771a250f9d141e7e0fff21c3dd2d9\"}, {\"url\": \"https://git.kernel.org/stable/c/a972c768723359ec995579902473028fe3cd64b1\"}, {\"url\": \"https://git.kernel.org/stable/c/de63e74da2333b4068bb79983e632db730fea97e\"}, {\"url\": \"https://git.kernel.org/stable/c/226e993c39405292781bfcf4b039a8db56aab362\"}, {\"url\": \"https://git.kernel.org/stable/c/aadb22ba2f656581b2f733deb3a467c48cc618f6\"}], \"title\": \"drbd: Fix five use after free bugs in get_initial_state\", \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49085\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-27T17:59:12.644580Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-27T17:59:14.040Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49085\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-02-26T01:49:39.248Z\", \"datePublished\": \"2025-02-26T01:54:43.579Z\", \"dateUpdated\": \"2025-02-27T18:02:29.848Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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