CVE-2022-49153 (GCVE-0-2022-49153)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2025-05-04 08:31
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wireguard: socket: free skb in send6 when ipv6 is disabled I got a memory leak report: unreferenced object 0xffff8881191fc040 (size 232): comm "kworker/u17:0", pid 23193, jiffies 4295238848 (age 3464.870s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff814c3ef4>] slab_post_alloc_hook+0x84/0x3b0 [<ffffffff814c8977>] kmem_cache_alloc_node+0x167/0x340 [<ffffffff832974fb>] __alloc_skb+0x1db/0x200 [<ffffffff82612b5d>] wg_socket_send_buffer_to_peer+0x3d/0xc0 [<ffffffff8260e94a>] wg_packet_send_handshake_initiation+0xfa/0x110 [<ffffffff8260ec81>] wg_packet_handshake_send_worker+0x21/0x30 [<ffffffff8119c558>] process_one_work+0x2e8/0x770 [<ffffffff8119ca2a>] worker_thread+0x4a/0x4b0 [<ffffffff811a88e0>] kthread+0x120/0x160 [<ffffffff8100242f>] ret_from_fork+0x1f/0x30 In function wg_socket_send_buffer_as_reply_to_skb() or wg_socket_send_ buffer_to_peer(), the semantics of send6() is required to free skb. But when CONFIG_IPV6 is disable, kfree_skb() is missing. This patch adds it to fix this bug.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/096f9d35cac0a0c95ffafc00db84786b665a4837Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b19bcb753dbfb74710d12bb2761ec5ed706c726Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/402991a9771587acc2947cf6c4d689c5397f2258Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbbf962d9460194993ee1943a793a0a0af4a7fbfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ebcc492f4ba14bae54b898f1016a37b4282558d1Patch
Impacted products
Vendor Product Version
Linux Linux Version: e7096c131e5161fa3b8e52a650d7719d2857adfd
Version: e7096c131e5161fa3b8e52a650d7719d2857adfd
Version: e7096c131e5161fa3b8e52a650d7719d2857adfd
Version: e7096c131e5161fa3b8e52a650d7719d2857adfd
Version: e7096c131e5161fa3b8e52a650d7719d2857adfd
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: socket: free skb in send6 when ipv6 is disabled\n\nI got a memory leak report:\n\nunreferenced object 0xffff8881191fc040 (size 232):\n  comm \"kworker/u17:0\", pid 23193, jiffies 4295238848 (age 3464.870s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffff814c3ef4\u003e] slab_post_alloc_hook+0x84/0x3b0\n    [\u003cffffffff814c8977\u003e] kmem_cache_alloc_node+0x167/0x340\n    [\u003cffffffff832974fb\u003e] __alloc_skb+0x1db/0x200\n    [\u003cffffffff82612b5d\u003e] wg_socket_send_buffer_to_peer+0x3d/0xc0\n    [\u003cffffffff8260e94a\u003e] wg_packet_send_handshake_initiation+0xfa/0x110\n    [\u003cffffffff8260ec81\u003e] wg_packet_handshake_send_worker+0x21/0x30\n    [\u003cffffffff8119c558\u003e] process_one_work+0x2e8/0x770\n    [\u003cffffffff8119ca2a\u003e] worker_thread+0x4a/0x4b0\n    [\u003cffffffff811a88e0\u003e] kthread+0x120/0x160\n    [\u003cffffffff8100242f\u003e] ret_from_fork+0x1f/0x30\n\nIn function wg_socket_send_buffer_as_reply_to_skb() or wg_socket_send_\nbuffer_to_peer(), the semantics of send6() is required to free skb. But\nwhen CONFIG_IPV6 is disable, kfree_skb() is missing. This patch adds it\nto fix this bug."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:31:07.768Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/bbbf962d9460194993ee1943a793a0a0af4a7fbf"
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      "title": "wireguard: socket: free skb in send6 when ipv6 is disabled",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49153",
    "datePublished": "2025-02-26T01:55:18.745Z",
    "dateReserved": "2025-02-26T01:49:39.275Z",
    "dateUpdated": "2025-05-04T08:31:07.768Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49153\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:52.533\",\"lastModified\":\"2025-03-13T21:59:52.070\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwireguard: socket: free skb in send6 when ipv6 is disabled\\n\\nI got a memory leak report:\\n\\nunreferenced object 0xffff8881191fc040 (size 232):\\n  comm \\\"kworker/u17:0\\\", pid 23193, jiffies 4295238848 (age 3464.870s)\\n  hex dump (first 32 bytes):\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffff814c3ef4\u003e] slab_post_alloc_hook+0x84/0x3b0\\n    [\u003cffffffff814c8977\u003e] kmem_cache_alloc_node+0x167/0x340\\n    [\u003cffffffff832974fb\u003e] __alloc_skb+0x1db/0x200\\n    [\u003cffffffff82612b5d\u003e] wg_socket_send_buffer_to_peer+0x3d/0xc0\\n    [\u003cffffffff8260e94a\u003e] wg_packet_send_handshake_initiation+0xfa/0x110\\n    [\u003cffffffff8260ec81\u003e] wg_packet_handshake_send_worker+0x21/0x30\\n    [\u003cffffffff8119c558\u003e] process_one_work+0x2e8/0x770\\n    [\u003cffffffff8119ca2a\u003e] worker_thread+0x4a/0x4b0\\n    [\u003cffffffff811a88e0\u003e] kthread+0x120/0x160\\n    [\u003cffffffff8100242f\u003e] ret_from_fork+0x1f/0x30\\n\\nIn function wg_socket_send_buffer_as_reply_to_skb() or wg_socket_send_\\nbuffer_to_peer(), the semantics of send6() is required to free skb. But\\nwhen CONFIG_IPV6 is disable, kfree_skb() is missing. This patch adds it\\nto fix this bug.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wireguard: socket: skb libre en send6 cuando ipv6 est\u00e1 deshabilitado Recib\u00ed un informe de p\u00e9rdida de memoria: objeto sin referencia 0xffff8881191fc040 (tama\u00f1o 232): comm \\\"kworker/u17:0\\\", pid 23193, jiffies 4295238848 (edad 3464.870s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] slab_post_alloc_hook+0x84/0x3b0 [] kmem_cache_alloc_node+0x167/0x340 [] __alloc_skb+0x1db/0x200 [] wg_socket_send_buffer_to_peer+0x3d/0xc0 [] wg_packet_send_handshake_initiation+0xfa/0x110 [] wg_packet_handshake_send_worker+0x21/0x30 [] process_one_work+0x2e8/0x770 [] worker_thread+0x4a/0x4b0 [] kthread+0x120/0x160 [] ret_from_fork+0x1f/0x30 En la funci\u00f3n wg_socket_send_buffer_as_reply_to_skb() o wg_socket_send_buffer_to_peer(), se requiere la sem\u00e1ntica de send6() para liberar skb. Pero cuando CONFIG_IPV6 est\u00e1 deshabilitado, falta kfree_skb(). Este parche lo agrega para corregir este error.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.6\",\"versionEndExcluding\":\"5.10.110\",\"matchCriteriaId\":\"05F0A158-8722-4B5A-BEC5-245BC5E3EA9A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.33\",\"matchCriteriaId\":\"27C42AE8-B387-43E2-938A-E1C8B40BE6D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.19\",\"matchCriteriaId\":\"20C43679-0439-405A-B97F-685BEE50613B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"5.17.2\",\"matchCriteriaId\":\"210C679C-CF84-44A3-8939-E629C87E54BF\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/096f9d35cac0a0c95ffafc00db84786b665a4837\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0b19bcb753dbfb74710d12bb2761ec5ed706c726\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/402991a9771587acc2947cf6c4d689c5397f2258\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bbbf962d9460194993ee1943a793a0a0af4a7fbf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ebcc492f4ba14bae54b898f1016a37b4282558d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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