mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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49 lines
3.5 KiB
JSON
49 lines
3.5 KiB
JSON
{
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"id": "CVE-2024-41006",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-07-12T13:15:21.370",
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"lastModified": "2024-07-12T13:15:21.370",
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"vulnStatus": "Received",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: Fix a memory leak in nr_heartbeat_expiry()\n\nsyzbot reported a memory leak in nr_create() [0].\n\nCommit 409db27e3a2e (\"netrom: Fix use-after-free of a listening socket.\")\nadded sock_hold() to the nr_heartbeat_expiry() function, where\na) a socket has a SOCK_DESTROY flag or\nb) a listening socket has a SOCK_DEAD flag.\n\nBut in the case \"a,\" when the SOCK_DESTROY flag is set, the file descriptor\nhas already been closed and the nr_release() function has been called.\nSo it makes no sense to hold the reference count because no one will\ncall another nr_destroy_socket() and put it as in the case \"b.\"\n\nnr_connect\n nr_establish_data_link\n nr_start_heartbeat\n\nnr_release\n switch (nr->state)\n case NR_STATE_3\n nr->state = NR_STATE_2\n sock_set_flag(sk, SOCK_DESTROY);\n\n nr_rx_frame\n nr_process_rx_frame\n switch (nr->state)\n case NR_STATE_2\n nr_state2_machine()\n nr_disconnect()\n nr_sk(sk)->state = NR_STATE_0\n sock_set_flag(sk, SOCK_DEAD)\n\n nr_heartbeat_expiry\n switch (nr->state)\n case NR_STATE_0\n if (sock_flag(sk, SOCK_DESTROY) ||\n (sk->sk_state == TCP_LISTEN\n && sock_flag(sk, SOCK_DEAD)))\n sock_hold() // ( !!! )\n nr_destroy_socket()\n\nTo fix the memory leak, let's call sock_hold() only for a listening socket.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller.\n\n[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/0b9130247f3b6a1122478471ff0e014ea96bb735",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/280cf1173726a7059b628c610c71050d5c0b6937",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/5391f9db2cab5ef1cb411be1ab7dbec728078fba",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/a02fd5d775cf9787ee7698c797e20f2fa13d2e2b",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b6ebe4fed73eedeb73f4540f8edc4871945474c8",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/d377f5a28332954b19e373d36823e59830ab1712",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/d616876256b38ecf9a1a1c7d674192c5346bc69c",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/e07a9c2a850cdebf625e7a1b8171bd23a8554313",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |