331 lines
16 KiB
JSON
331 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49450",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T02:08:31.572Z",
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"datePublished": "2025-02-26T02:13:00.379Z",
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"dateUpdated": "2026-05-11T19:00:06.588Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:00:06.588Z"
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},
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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\nrxrpc: Fix listen() setting the bar too high for the prealloc rings\n\nAF_RXRPC's listen() handler lets you set the backlog up to 32 (if you bump\nup the sysctl), but whilst the preallocation circular buffers have 32 slots\nin them, one of them has to be a dead slot because we're using CIRC_CNT().\n\nThis means that listen(rxrpc_sock, 32) will cause an oops when the socket\nis closed because rxrpc_service_prealloc_one() allocated one too many calls\nand rxrpc_discard_prealloc() won't then be able to get rid of them because\nit'll think the ring is empty. rxrpc_release_calls_on_socket() then tries\nto abort them, but oopses because call->peer isn't yet set.\n\nFix this by setting the maximum backlog to RXRPC_BACKLOG_MAX - 1 to match\nthe ring capacity.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000086\n ...\n RIP: 0010:rxrpc_send_abort_packet+0x73/0x240 [rxrpc]\n Call Trace:\n <TASK>\n ? __wake_up_common_lock+0x7a/0x90\n ? rxrpc_notify_socket+0x8e/0x140 [rxrpc]\n ? rxrpc_abort_call+0x4c/0x60 [rxrpc]\n rxrpc_release_calls_on_socket+0x107/0x1a0 [rxrpc]\n rxrpc_release+0xc9/0x1c0 [rxrpc]\n __sock_release+0x37/0xa0\n sock_close+0x11/0x20\n __fput+0x89/0x240\n task_work_run+0x59/0x90\n do_exit+0x319/0xaa0"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/rxrpc/sysctl.c"
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],
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"versions": [
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "61fb38cfbb1d54d3dafd0c25752f684b3cd00b32",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "616f76498d5ddf26b997caf64a95cda3c8a55533",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "4a3a78b7918bdd723d8c7c9786522ca969bffcc4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "91b34bf0409f43bb60453bab23c5beadd726d022",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "5b4826657d36c218e9f08e8d3223b0edce3de88f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "b3a9b227d5e7467b8518160ff034ea22bb9de573",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "369de57492c4f1a42563c5a3bd365822ca3bfc79",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "e198f1930050e3115c80b67d9249f80f98a27c67",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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"lessThan": "88e22159750b0d55793302eeed8ee603f5c1a95c",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/rxrpc/sysctl.c"
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],
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"versions": [
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{
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"version": "4.9",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.9",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.318",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.283",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.247",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.198",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.121",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.46",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17.14",
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"lessThanOrEqual": "5.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.18.3",
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"lessThanOrEqual": "5.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "4.9.318"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "4.14.283"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "4.19.247"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.4.198"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.10.121"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.15.46"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.17.14"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.18.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/61fb38cfbb1d54d3dafd0c25752f684b3cd00b32"
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},
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{
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"url": "https://git.kernel.org/stable/c/616f76498d5ddf26b997caf64a95cda3c8a55533"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a3a78b7918bdd723d8c7c9786522ca969bffcc4"
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},
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{
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"url": "https://git.kernel.org/stable/c/91b34bf0409f43bb60453bab23c5beadd726d022"
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},
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{
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"url": "https://git.kernel.org/stable/c/5b4826657d36c218e9f08e8d3223b0edce3de88f"
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},
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{
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"url": "https://git.kernel.org/stable/c/b3a9b227d5e7467b8518160ff034ea22bb9de573"
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},
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{
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"url": "https://git.kernel.org/stable/c/369de57492c4f1a42563c5a3bd365822ca3bfc79"
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},
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{
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"url": "https://git.kernel.org/stable/c/e198f1930050e3115c80b67d9249f80f98a27c67"
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},
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{
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"url": "https://git.kernel.org/stable/c/88e22159750b0d55793302eeed8ee603f5c1a95c"
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}
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],
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"title": "rxrpc: Fix listen() setting the bar too high for the prealloc rings",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-49450",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T19:40:32.763863Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-476",
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"description": "CWE-476 NULL Pointer Dereference"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T19:46:48.225Z"
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}
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}
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]
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}
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} |