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vuln-cve/data/2022/49xxx/CVE-2022-49788.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-49788",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-05-01T14:05:17.223Z",
"datePublished": "2025-05-01T14:09:20.506Z",
"dateUpdated": "2026-11-05T19:49:48.761Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T19:06:47.654Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()\n\n`struct vmci_event_qp` allocated by qp_notify_peer() contains padding,\nwhich may carry uninitialized data to the userspace, as observed by\nKMSAN:\n\n BUG: KMSAN: kernel-infoleak in instrument_copy_to_user ./include/linux/instrumented.h:121\n instrument_copy_to_user ./include/linux/instrumented.h:121\n _copy_to_user+0x5f/0xb0 lib/usercopy.c:33\n copy_to_user ./include/linux/uaccess.h:169\n vmci_host_do_receive_datagram drivers/misc/vmw_vmci/vmci_host.c:431\n vmci_host_unlocked_ioctl+0x33d/0x43d0 drivers/misc/vmw_vmci/vmci_host.c:925\n vfs_ioctl fs/ioctl.c:51\n ...\n\n Uninit was stored to memory at:\n kmemdup+0x74/0xb0 mm/util.c:131\n dg_dispatch_as_host drivers/misc/vmw_vmci/vmci_datagram.c:271\n vmci_datagram_dispatch+0x4f8/0xfc0 drivers/misc/vmw_vmci/vmci_datagram.c:339\n qp_notify_peer+0x19a/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1479\n qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1662\n qp_broker_alloc+0x2977/0x2f30 drivers/misc/vmw_vmci/vmci_queue_pair.c:1750\n vmci_qp_broker_alloc+0x96/0xd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1940\n vmci_host_do_alloc_queuepair drivers/misc/vmw_vmci/vmci_host.c:488\n vmci_host_unlocked_ioctl+0x24fd/0x43d0 drivers/misc/vmw_vmci/vmci_host.c:927\n ...\n\n Local variable ev created at:\n qp_notify_peer+0x54/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1456\n qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1662\n qp_broker_alloc+0x2977/0x2f30 drivers/misc/vmw_vmci/vmci_queue_pair.c:1750\n\n Bytes 28-31 of 48 are uninitialized\n Memory access of size 48 starts at ffff888035155e00\n Data copied to user address 0000000020000100\n\nUse memset() to prevent the infoleaks.\n\nAlso speculatively fix qp_notify_peer_local(), which may suffer from the\nsame problem."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/misc/vmw_vmci/vmci_queue_pair.c"
],
"versions": [
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "7ccf7229b96fadc3a185d1391f814a604c7ef609",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "f04586c2315cfd03d72ad0395705435e7ed07b1a",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "5a275528025ae4bc7e2232866856dfebf84b2fad",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "e7061dd1fef2dfb6458cd521aef27aa66f510d31",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "62634b43d3c4e1bf62fd540196f7081bf0885c0a",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "8e2f33c598370bcf828bab4d667d1d38bcd3c57d",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "76c50d77b928a33e5290aaa9fdc10e88254ff8c7",
"status": "affected",
"versionType": "git"
},
{
"version": "06164d2b72aa752ce4633184b3e0d97601017135",
"lessThan": "e5b0d06d9b10f5f43101bd6598b076c347f9295f",
"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/misc/vmw_vmci/vmci_queue_pair.c"
],
"versions": [
{
"version": "3.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.9",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.9.334",
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.300",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.267",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.225",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.156",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.80",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.0.10",
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1",
"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": "3.9",
"versionEndExcluding": "4.9.334"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "4.14.300"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "4.19.267"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "5.4.225"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "5.10.156"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "5.15.80"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "6.0.10"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.9",
"versionEndExcluding": "6.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/7ccf7229b96fadc3a185d1391f814a604c7ef609"
},
{
"url": "https://git.kernel.org/stable/c/f04586c2315cfd03d72ad0395705435e7ed07b1a"
},
{
"url": "https://git.kernel.org/stable/c/5a275528025ae4bc7e2232866856dfebf84b2fad"
},
{
"url": "https://git.kernel.org/stable/c/e7061dd1fef2dfb6458cd521aef27aa66f510d31"
},
{
"url": "https://git.kernel.org/stable/c/62634b43d3c4e1bf62fd540196f7081bf0885c0a"
},
{
"url": "https://git.kernel.org/stable/c/8e2f33c598370bcf828bab4d667d1d38bcd3c57d"
},
{
"url": "https://git.kernel.org/stable/c/76c50d77b928a33e5290aaa9fdc10e88254ff8c7"
},
{
"url": "https://git.kernel.org/stable/c/e5b0d06d9b10f5f43101bd6598b076c347f9295f"
}
],
"title": "misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2022-49788",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-05T19:48:00.593549Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-05T19:49:48.761Z"
}
}
]
}
}
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