{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"HIGH"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
		},
		"lang":"en",
		"notes":[
			{
				"text":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: NULL out the dev->rfkill to prevent UAF\n\nCommit 3e3b5dfcd16a (\"NFC: reorder the logic in nfc_{un,}register_device\")\nassumes the device_is_registered() in function nfc_dev_up() will help\nto check when the rfkill is unregistered. However, this check only\ntake effect when device_del(&dev->dev) is done in nfc_unregister_device().\nHence, the rfkill object is still possible be dereferenced.\n\nThe crash trace in latest kernel (5.18-rc2):\n\n[   68.760105] ==================================================================\n[   68.760330] BUG: KASAN: use-after-free in __lock_acquire+0x3ec1/0x6750\n[   68.760756] Read of size 8 at addr ffff888009c93018 by task fuzz/313\n[   68.760756]\n[   68.760756] CPU: 0 PID: 313 Comm: fuzz Not tainted 5.18.0-rc2 #4\n[   68.760756] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[   68.760756] Call Trace:\n[   68.760756]  <TASK>\n[   68.760756]  dump_stack_lvl+0x57/0x7d\n[   68.760756]  print_report.cold+0x5e/0x5db\n[   68.760756]  ? __lock_acquire+0x3ec1/0x6750\n[   68.760756]  kasan_report+0xbe/0x1c0\n[   68.760756]  ? __lock_acquire+0x3ec1/0x6750\n[   68.760756]  __lock_acquire+0x3ec1/0x6750\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  ? register_lock_class+0x18d0/0x18d0\n[   68.760756]  lock_acquire+0x1ac/0x4f0\n[   68.760756]  ? rfkill_blocked+0xe/0x60\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  ? mutex_lock_io_nested+0x12c0/0x12c0\n[   68.760756]  ? nla_get_range_signed+0x540/0x540\n[   68.760756]  ? _raw_spin_lock_irqsave+0x4e/0x50\n[   68.760756]  _raw_spin_lock_irqsave+0x39/0x50\n[   68.760756]  ? rfkill_blocked+0xe/0x60\n[   68.760756]  rfkill_blocked+0xe/0x60\n[   68.760756]  nfc_dev_up+0x84/0x260\n[   68.760756]  nfc_genl_dev_up+0x90/0xe0\n[   68.760756]  genl_family_rcv_msg_doit+0x1f4/0x2f0\n[   68.760756]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x230/0x230\n[   68.760756]  ? security_capable+0x51/0x90\n[   68.760756]  genl_rcv_msg+0x280/0x500\n[   68.760756]  ? genl_get_cmd+0x3c0/0x3c0\n[   68.760756]  ? lock_acquire+0x1ac/0x4f0\n[   68.760756]  ? nfc_genl_dev_down+0xe0/0xe0\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  netlink_rcv_skb+0x11b/0x340\n[   68.760756]  ? genl_get_cmd+0x3c0/0x3c0\n[   68.760756]  ? netlink_ack+0x9c0/0x9c0\n[   68.760756]  ? netlink_deliver_tap+0x136/0xb00\n[   68.760756]  genl_rcv+0x1f/0x30\n[   68.760756]  netlink_unicast+0x430/0x710\n[   68.760756]  ? memset+0x20/0x40\n[   68.760756]  ? netlink_attachskb+0x740/0x740\n[   68.760756]  ? __build_skb_around+0x1f4/0x2a0\n[   68.760756]  netlink_sendmsg+0x75d/0xc00\n[   68.760756]  ? netlink_unicast+0x710/0x710\n[   68.760756]  ? netlink_unicast+0x710/0x710\n[   68.760756]  sock_sendmsg+0xdf/0x110\n[   68.760756]  __sys_sendto+0x19e/0x270\n[   68.760756]  ? __ia32_sys_getpeername+0xa0/0xa0\n[   68.760756]  ? fd_install+0x178/0x4c0\n[   68.760756]  ? fd_install+0x195/0x4c0\n[   68.760756]  ? kernel_fpu_begin_mask+0x1c0/0x1c0\n[   68.760756]  __x64_sys_sendto+0xd8/0x1b0\n[   68.760756]  ? lockdep_hardirqs_on+0xbf/0x130\n[   68.760756]  ? syscall_enter_from_user_mode+0x1d/0x50\n[   68.760756]  do_syscall_64+0x3b/0x90\n[   68.760756]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n[   68.760756] RIP: 0033:0x7f67fb50e6b3\n...\n[   68.760756] RSP: 002b:00007f67fa91fe90 EFLAGS: 00000293 ORIG_RAX: 000000000000002c\n[   68.760756] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f67fb50e6b3\n[   68.760756] RDX: 000000000000001c RSI: 0000559354603090 RDI: 0000000000000003\n[   68.760756] RBP: 00007f67fa91ff00 R08: 00007f67fa91fedc R09: 000000000000000c\n[   68.760756] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffe824d496e\n[   68.760756] R13: 00007ffe824d496f R14: 00007f67fa120000 R15: 0000000000000003\n\n[   68.760756]  </TASK>\n[   68.760756]\n[   68.760756] Allocated by task 279:\n[   68.760756]  kasan_save_stack+0x1e/0x40\n[\n---truncated---",
				"category":"general",
				"title":"Synopsis"
			}
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		"publisher":{
			"issuing_authority":"openEuler security committee",
			"name":"openEuler",
			"namespace":"https://www.openeuler.org",
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			"category":"vendor"
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		"references":[
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49505"
			},
			{
				"summary":"CVE-2022-49505 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/cve/2022/csaf-openeuler-cve-2022-49505.json"
			},
			{
				"summary":"openEuler-SA-2025-1513",
				"category":"self",
				"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1513"
			},
			{
				"summary":"CVE-2022-49505",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2022-49505&packageName=kernel"
			}
		],
		"title":"openEuler cve CVE-2022-49505",
		"tracking":{
			"initial_release_date":"2025-05-16T21:24:46+08:00",
			"revision_history":[
				{
					"date":"2025-05-16T21:24:46+08:00",
					"summary":"Initial",
					"number":"1.0.0"
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			"generator":{
				"date":"2025-05-16T21:24:46+08:00",
				"engine":{
					"name":"openEuler CSAF Tool V1.0"
				}
			},
			"current_release_date":"2025-05-16T21:24:46+08:00",
			"id":"CVE-2022-49505",
			"version":"1.0.0",
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	"vulnerabilities":[
		{
			"cve":"CVE-2022-49505",
			"notes":[
				{
					"text":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: NULL out the dev->rfkill to prevent UAF\n\nCommit 3e3b5dfcd16a (\"NFC: reorder the logic in nfc_{un,}register_device\")\nassumes the device_is_registered() in function nfc_dev_up() will help\nto check when the rfkill is unregistered. However, this check only\ntake effect when device_del(&dev->dev) is done in nfc_unregister_device().\nHence, the rfkill object is still possible be dereferenced.\n\nThe crash trace in latest kernel (5.18-rc2):\n\n[   68.760105] ==================================================================\n[   68.760330] BUG: KASAN: use-after-free in __lock_acquire+0x3ec1/0x6750\n[   68.760756] Read of size 8 at addr ffff888009c93018 by task fuzz/313\n[   68.760756]\n[   68.760756] CPU: 0 PID: 313 Comm: fuzz Not tainted 5.18.0-rc2 #4\n[   68.760756] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[   68.760756] Call Trace:\n[   68.760756]  <TASK>\n[   68.760756]  dump_stack_lvl+0x57/0x7d\n[   68.760756]  print_report.cold+0x5e/0x5db\n[   68.760756]  ? __lock_acquire+0x3ec1/0x6750\n[   68.760756]  kasan_report+0xbe/0x1c0\n[   68.760756]  ? __lock_acquire+0x3ec1/0x6750\n[   68.760756]  __lock_acquire+0x3ec1/0x6750\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  ? register_lock_class+0x18d0/0x18d0\n[   68.760756]  lock_acquire+0x1ac/0x4f0\n[   68.760756]  ? rfkill_blocked+0xe/0x60\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  ? mutex_lock_io_nested+0x12c0/0x12c0\n[   68.760756]  ? nla_get_range_signed+0x540/0x540\n[   68.760756]  ? _raw_spin_lock_irqsave+0x4e/0x50\n[   68.760756]  _raw_spin_lock_irqsave+0x39/0x50\n[   68.760756]  ? rfkill_blocked+0xe/0x60\n[   68.760756]  rfkill_blocked+0xe/0x60\n[   68.760756]  nfc_dev_up+0x84/0x260\n[   68.760756]  nfc_genl_dev_up+0x90/0xe0\n[   68.760756]  genl_family_rcv_msg_doit+0x1f4/0x2f0\n[   68.760756]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x230/0x230\n[   68.760756]  ? security_capable+0x51/0x90\n[   68.760756]  genl_rcv_msg+0x280/0x500\n[   68.760756]  ? genl_get_cmd+0x3c0/0x3c0\n[   68.760756]  ? lock_acquire+0x1ac/0x4f0\n[   68.760756]  ? nfc_genl_dev_down+0xe0/0xe0\n[   68.760756]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   68.760756]  netlink_rcv_skb+0x11b/0x340\n[   68.760756]  ? genl_get_cmd+0x3c0/0x3c0\n[   68.760756]  ? netlink_ack+0x9c0/0x9c0\n[   68.760756]  ? netlink_deliver_tap+0x136/0xb00\n[   68.760756]  genl_rcv+0x1f/0x30\n[   68.760756]  netlink_unicast+0x430/0x710\n[   68.760756]  ? memset+0x20/0x40\n[   68.760756]  ? netlink_attachskb+0x740/0x740\n[   68.760756]  ? __build_skb_around+0x1f4/0x2a0\n[   68.760756]  netlink_sendmsg+0x75d/0xc00\n[   68.760756]  ? netlink_unicast+0x710/0x710\n[   68.760756]  ? netlink_unicast+0x710/0x710\n[   68.760756]  sock_sendmsg+0xdf/0x110\n[   68.760756]  __sys_sendto+0x19e/0x270\n[   68.760756]  ? __ia32_sys_getpeername+0xa0/0xa0\n[   68.760756]  ? fd_install+0x178/0x4c0\n[   68.760756]  ? fd_install+0x195/0x4c0\n[   68.760756]  ? kernel_fpu_begin_mask+0x1c0/0x1c0\n[   68.760756]  __x64_sys_sendto+0xd8/0x1b0\n[   68.760756]  ? lockdep_hardirqs_on+0xbf/0x130\n[   68.760756]  ? syscall_enter_from_user_mode+0x1d/0x50\n[   68.760756]  do_syscall_64+0x3b/0x90\n[   68.760756]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n[   68.760756] RIP: 0033:0x7f67fb50e6b3\n...\n[   68.760756] RSP: 002b:00007f67fa91fe90 EFLAGS: 00000293 ORIG_RAX: 000000000000002c\n[   68.760756] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f67fb50e6b3\n[   68.760756] RDX: 000000000000001c RSI: 0000559354603090 RDI: 0000000000000003\n[   68.760756] RBP: 00007f67fa91ff00 R08: 00007f67fa91fedc R09: 000000000000000c\n[   68.760756] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffe824d496e\n[   68.760756] R13: 00007ffe824d496f R14: 00007f67fa120000 R15: 0000000000000003\n\n[   68.760756]  </TASK>\n[   68.760756]\n[   68.760756] Allocated by task 279:\n[   68.760756]  kasan_save_stack+0x1e/0x40\n[\n---truncated---",
					"category":"description",
					"title":"Vulnerability Description"
				}
			],
			"product_status":{
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			"remediations":[
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					],
					"details":"kernel security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1513"
				}
			],
			"scores":[
				{
					"cvss_v3":{
						"baseSeverity":"HIGH",
						"baseScore":7.8,
						"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
						"version":"3.1"
					},
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					]
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			"threats":[
				{
					"details":"High",
					"category":"impact"
				}
			],
			"title":"CVE-2022-49505"
		}
	]
}