CVE-2022-50702
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()
Inject fault while probing module, if device_register() fails in vdpasim_net_init() or vdpasim_blk_init(), but the refcount of kobject is not decreased to 0, the name allocated in dev_set_name() is leaked. Fix this by calling put_device(), so that name can be freed in callback function kobject_cleanup().
Detalles técnicos trazas, registros y código del informe original
(vdpa_sim_net)
unreferenced object 0xffff88807eebc370 (size 16):
comm "modprobe", pid 3848, jiffies 4362982860 (age 18.153s)
hex dump (first 16 bytes):
76 64 70 61 73 69 6d 5f 6e 65 74 00 6b 6b 6b a5 vdpasim_net.kkk.
backtrace:
[<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150
[<ffffffff81731d53>] kstrdup+0x33/0x60
[<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110
[<ffffffff82d87aab>] dev_set_name+0xab/0xe0
[<ffffffff82d91a23>] device_add+0xe3/0x1a80
[<ffffffffa0270013>] 0xffffffffa0270013
[<ffffffff81001c27>] do_one_initcall+0x87/0x2e0
[<ffffffff813739cb>] do_init_module+0x1ab/0x640
[<ffffffff81379d20>] load_module+0x5d00/0x77f0
[<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0
[<ffffffff83c4d505>] do_syscall_64+0x35/0x80
[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
(vdpa_sim_blk)
unreferenced object 0xffff8881070c1250 (size 16):
comm "modprobe", pid 6844, jiffies 4364069319 (age 17.572s)
hex dump (first 16 bytes):
76 64 70 61 73 69 6d 5f 62 6c 6b 00 6b 6b 6b a5 vdpasim_blk.kkk.
backtrace:
[<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150
[<ffffffff81731d53>] kstrdup+0x33/0x60
[<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110
[<ffffffff82d87aab>] dev_set_name+0xab/0xe0
[<ffffffff82d91a23>] device_add+0xe3/0x1a80
[<ffffffffa0220013>] 0xffffffffa0220013
[<ffffffff81001c27>] do_one_initcall+0x87/0x2e0
[<ffffffff813739cb>] do_init_module+0x1ab/0x640
[<ffffffff81379d20>] load_module+0x5d00/0x77f0
[<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0
[<ffffffff83c4d505>] do_syscall_64+0x35/0x80
[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-50702",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "586e6fd7d581f987f7d0d2592edf0b26397e783e",
"versionType": "git"
},
{
"status": "affected",
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "5be953e353fe421f2983e1fd37f07fba97edbffc",
"versionType": "git"
},
{
"status": "affected",
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "337c24d817e28dd454ca22f1063dfad20822426e",
"versionType": "git"
},
{
"status": "affected",
"version": "a3c06ae158dd6fa8336157c31d9234689d068d02",
"lessThan": "aeca7ff254843d49a8739f07f7dab1341450111d",
"versionType": "git"
}
],
"programFiles": [
"drivers/vdpa/vdpa_sim/vdpa_sim_blk.c",
"drivers/vdpa/vdpa_sim/vdpa_sim_net.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.87",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.0.19",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"status": "unaffected",
"version": "6.1.5",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/vdpa/vdpa_sim/vdpa_sim_blk.c",
"drivers/vdpa/vdpa_sim/vdpa_sim_net.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-24T11:15:50.360",
"references": [
{
"url": "https://git.kernel.org/stable/c/337c24d817e28dd454ca22f1063dfad20822426e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/586e6fd7d581f987f7d0d2592edf0b26397e783e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5be953e353fe421f2983e1fd37f07fba97edbffc",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/aeca7ff254843d49a8739f07f7dab1341450111d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"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"
}
],
"lastModified": "2026-06-17T05:24:01.993",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}