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vuln-cve/data/2022/50xxx/CVE-2022-50702.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-50702",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-12-24T10:53:15.517Z",
"datePublished": "2025-12-24T10:55:17.831Z",
"dateUpdated": "2026-05-11T19:23:50.676Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T19:23:50.676Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()\n\nInject fault while probing module, if device_register() fails in\nvdpasim_net_init() or vdpasim_blk_init(), but the refcount of kobject is\nnot decreased to 0, the name allocated in dev_set_name() is leaked.\nFix this by calling put_device(), so that name can be freed in\ncallback function kobject_cleanup().\n\n(vdpa_sim_net)\nunreferenced object 0xffff88807eebc370 (size 16):\n comm \"modprobe\", pid 3848, jiffies 4362982860 (age 18.153s)\n hex dump (first 16 bytes):\n 76 64 70 61 73 69 6d 5f 6e 65 74 00 6b 6b 6b a5 vdpasim_net.kkk.\n backtrace:\n [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n [<ffffffff81731d53>] kstrdup+0x33/0x60\n [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n [<ffffffffa0270013>] 0xffffffffa0270013\n [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\n(vdpa_sim_blk)\nunreferenced object 0xffff8881070c1250 (size 16):\n comm \"modprobe\", pid 6844, jiffies 4364069319 (age 17.572s)\n hex dump (first 16 bytes):\n 76 64 70 61 73 69 6d 5f 62 6c 6b 00 6b 6b 6b a5 vdpasim_blk.kkk.\n backtrace:\n [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n [<ffffffff81731d53>] kstrdup+0x33/0x60\n [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n [<ffffffffa0220013>] 0xffffffffa0220013\n [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/vdpa/vdpa_sim/vdpa_sim_blk.c",
"drivers/vdpa/vdpa_sim/vdpa_sim_net.c"
],
"versions": [
{
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "586e6fd7d581f987f7d0d2592edf0b26397e783e",
"status": "affected",
"versionType": "git"
},
{
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "5be953e353fe421f2983e1fd37f07fba97edbffc",
"status": "affected",
"versionType": "git"
},
{
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "337c24d817e28dd454ca22f1063dfad20822426e",
"status": "affected",
"versionType": "git"
},
{
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "aeca7ff254843d49a8739f07f7dab1341450111d",
"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/vdpa/vdpa_sim/vdpa_sim_blk.c",
"drivers/vdpa/vdpa_sim/vdpa_sim_net.c"
],
"versions": [
{
"version": "5.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.87",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.0.19",
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.5",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.2",
"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": "5.12",
"versionEndExcluding": "5.15.87"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.0.19"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.1.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/586e6fd7d581f987f7d0d2592edf0b26397e783e"
},
{
"url": "https://git.kernel.org/stable/c/5be953e353fe421f2983e1fd37f07fba97edbffc"
},
{
"url": "https://git.kernel.org/stable/c/337c24d817e28dd454ca22f1063dfad20822426e"
},
{
"url": "https://git.kernel.org/stable/c/aeca7ff254843d49a8739f07f7dab1341450111d"
}
],
"title": "vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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