CVE-2022-50854
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
nfc: virtual_ncidev: Fix memory leak in virtual_nci_send()
skb should be free in virtual_nci_send(), otherwise kmemleak will report memleak.
Detalles técnicos trazas, registros y código del informe original
Steps for reproduction (simulated in qemu):
cd tools/testing/selftests/nci
make
./nci_dev
BUG: memory leak
unreferenced object 0xffff888107588000 (size 208):
comm "nci_dev", pid 206, jiffies 4294945376 (age 368.248s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000008d94c8fd>] __alloc_skb+0x1da/0x290
[<00000000278bc7f8>] nci_send_cmd+0xa3/0x350
[<0000000081256a22>] nci_reset_req+0x6b/0xa0
[<000000009e721112>] __nci_request+0x90/0x250
[<000000005d556e59>] nci_dev_up+0x217/0x5b0
[<00000000e618ce62>] nfc_dev_up+0x114/0x220
[<00000000981e226b>] nfc_genl_dev_up+0x94/0xe0
[<000000009bb03517>] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0
[<00000000b7f8c101>] genl_rcv_msg+0x35c/0x640
[<00000000c94075ff>] netlink_rcv_skb+0x11e/0x350
[<00000000440cfb1e>] genl_rcv+0x24/0x40
[<0000000062593b40>] netlink_unicast+0x43f/0x640
[<000000001d0b13cc>] netlink_sendmsg+0x73a/0xbf0
[<000000003272487f>] __sys_sendto+0x324/0x370
[<00000000ef9f1747>] __x64_sys_sendto+0xdd/0x1b0
[<000000001e437841>] do_syscall_64+0x3f/0x90CVSS
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-2022-50854",
"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": "e624e6c3e777fb3dfed036b9da4d433aee3608a5",
"lessThan": "88e879c9f59511174ef0ab1a3c9c83e2dbf8a213",
"versionType": "git"
},
{
"status": "affected",
"version": "e624e6c3e777fb3dfed036b9da4d433aee3608a5",
"lessThan": "2c46a9a5f0b1c7341aa67667801079f3ff571678",
"versionType": "git"
},
{
"status": "affected",
"version": "e624e6c3e777fb3dfed036b9da4d433aee3608a5",
"lessThan": "e840d8f4a1b323973052a1af5ad4edafcde8ae3d",
"versionType": "git"
}
],
"programFiles": [
"drivers/nfc/virtual_ncidev.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": "5.15.77",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.0.7",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/nfc/virtual_ncidev.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-30T13:16:00.117",
"references": [
{
"url": "https://git.kernel.org/stable/c/2c46a9a5f0b1c7341aa67667801079f3ff571678",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/88e879c9f59511174ef0ab1a3c9c83e2dbf8a213",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e840d8f4a1b323973052a1af5ad4edafcde8ae3d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: virtual_ncidev: Fix memory leak in virtual_nci_send()\n\nskb should be free in virtual_nci_send(), otherwise kmemleak will report\nmemleak.\n\nSteps for reproduction (simulated in qemu):\n\tcd tools/testing/selftests/nci\n\tmake\n\t./nci_dev\n\nBUG: memory leak\nunreferenced object 0xffff888107588000 (size 208):\n comm \"nci_dev\", pid 206, jiffies 4294945376 (age 368.248s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<000000008d94c8fd>] __alloc_skb+0x1da/0x290\n [<00000000278bc7f8>] nci_send_cmd+0xa3/0x350\n [<0000000081256a22>] nci_reset_req+0x6b/0xa0\n [<000000009e721112>] __nci_request+0x90/0x250\n [<000000005d556e59>] nci_dev_up+0x217/0x5b0\n [<00000000e618ce62>] nfc_dev_up+0x114/0x220\n [<00000000981e226b>] nfc_genl_dev_up+0x94/0xe0\n [<000000009bb03517>] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0\n [<00000000b7f8c101>] genl_rcv_msg+0x35c/0x640\n [<00000000c94075ff>] netlink_rcv_skb+0x11e/0x350\n [<00000000440cfb1e>] genl_rcv+0x24/0x40\n [<0000000062593b40>] netlink_unicast+0x43f/0x640\n [<000000001d0b13cc>] netlink_sendmsg+0x73a/0xbf0\n [<000000003272487f>] __sys_sendto+0x324/0x370\n [<00000000ef9f1747>] __x64_sys_sendto+0xdd/0x1b0\n [<000000001e437841>] do_syscall_64+0x3f/0x90"
}
],
"lastModified": "2026-06-17T05:24:18.110",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}