GHSA-7H7X-WHHW-M2R2
Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30In 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.
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/0x90
{
"affected": [],
"aliases": [
"CVE-2022-50854"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-30T13:16:00Z",
"severity": null
},
"details": "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 [\u003c000000008d94c8fd\u003e] __alloc_skb+0x1da/0x290\n [\u003c00000000278bc7f8\u003e] nci_send_cmd+0xa3/0x350\n [\u003c0000000081256a22\u003e] nci_reset_req+0x6b/0xa0\n [\u003c000000009e721112\u003e] __nci_request+0x90/0x250\n [\u003c000000005d556e59\u003e] nci_dev_up+0x217/0x5b0\n [\u003c00000000e618ce62\u003e] nfc_dev_up+0x114/0x220\n [\u003c00000000981e226b\u003e] nfc_genl_dev_up+0x94/0xe0\n [\u003c000000009bb03517\u003e] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0\n [\u003c00000000b7f8c101\u003e] genl_rcv_msg+0x35c/0x640\n [\u003c00000000c94075ff\u003e] netlink_rcv_skb+0x11e/0x350\n [\u003c00000000440cfb1e\u003e] genl_rcv+0x24/0x40\n [\u003c0000000062593b40\u003e] netlink_unicast+0x43f/0x640\n [\u003c000000001d0b13cc\u003e] netlink_sendmsg+0x73a/0xbf0\n [\u003c000000003272487f\u003e] __sys_sendto+0x324/0x370\n [\u003c00000000ef9f1747\u003e] __x64_sys_sendto+0xdd/0x1b0\n [\u003c000000001e437841\u003e] do_syscall_64+0x3f/0x90",
"id": "GHSA-7h7x-whhw-m2r2",
"modified": "2025-12-30T15:30:28Z",
"published": "2025-12-30T15:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50854"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2c46a9a5f0b1c7341aa67667801079f3ff571678"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/88e879c9f59511174ef0ab1a3c9c83e2dbf8a213"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e840d8f4a1b323973052a1af5ad4edafcde8ae3d"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
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Nomenclature
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- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.