{
"schemaVersion": 1,
"attribution": [
{
"source": "CISA Known Exploited Vulnerabilities",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
"licence": "US government work"
},
{
"source": "GitHub Advisory Database",
"url": "https://github.com/advisories",
"licence": "CC BY 4.0"
},
{
"source": "Have I Been Pwned",
"url": "https://haveibeenpwned.com/",
"licence": "CC BY 4.0"
},
{
"source": "CVE Program (CVE records)",
"url": "https://www.cve.org/Legal/TermsOfUse",
"licence": "CVE Terms of Use",
"notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
"terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
},
{
"source": "FIRST EPSS",
"url": "https://www.first.org/epss/",
"licence": "free to use; FIRST requests attribution"
}
],
"record": {
"id": "CVE-2022-50320",
"sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50320",
"idYear": 2022,
"status": "PUBLISHED",
"publishedAt": "2025-09-15T14:48:53.475Z",
"updatedAt": "2026-05-11T19:17:02.028Z",
"importedAt": "2026-10-24T01:56:49.724Z",
"snapshot": {
"id": "cve_2026-10-24_midnight_baseline",
"at": "2026-10-24T00:00:00.000Z",
"source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
},
"facts": {
"title": "ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address",
"summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address\n\nOn a Packard Bell Dot SC (Intel Atom N2600 model) there is a FPDT table\nwhich contains invalid physical addresses, with high bits set which fall\noutside the range of the CPU-s supported physical address range.\n\nCalling acpi_os_map_memory() on such an invalid phys address leads to\nthe below WARN_ON in ioremap triggering resulting in an oops/stacktrace.\n\nAdd code to verify the physical address before calling acpi_os_map_memory()\nto fix / avoid the oops.\n\n[ 1.226900] ioremap: invalid physical address 3001000000000000\n[ 1.226949] ------------[ cut here ]------------\n[ 1.226962] WARNING: CPU: 1 PID: 1 at arch/x86/mm/ioremap.c:200 __ioremap_caller.cold+0x43/0x5f\n[ 1.226996] Modules linked in:\n[ 1.227016] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc3+ #490\n[ 1.227029] Hardware name: Packard Bell dot s/SJE01_CT, BIOS V1.10 07/23/2013\n[ 1.227038] RIP: 0010:__ioremap_caller.cold+0x43/0x5f\n[ 1.227054] Code: 96 00 00 e9 f8 af 24 ff 89 c6 48 c7 c7 d8 0c 84 99 e8 6a 96 00 00 e9 76 af 24 ff 48 89 fe 48 c7 c7 a8 0c 84 99 e8 56 96 00 00 <0f> 0b e9 60 af 24 ff 48 8b 34 24 48 c7 c7 40 0d 84 99 e8 3f 96 00\n[ 1.227067] RSP: 0000:ffffb18c40033d60 EFLAGS: 00010286\n[ 1.227084] RAX: 0000000000000032 RBX: 3001000000000000 RCX: 0000000000000000\n[ 1.227095] RDX: 0000000000000001 RSI: 00000000ffffdfff RDI: 00000000ffffffff\n[ 1.227105] RBP: 3001000000000000 R08: 0000000000000000 R09: ffffb18c40033c18\n[ 1.227115] R10: 0000000000000003 R11: ffffffff99d62fe8 R12: 0000000000000008\n[ 1.227124] R13: 0003001000000000 R14: 0000000000001000 R15: 3001000000000000\n[ 1.227135] FS: 0000000000000000(0000) GS:ffff913a3c080000(0000) knlGS:0000000000000000\n[ 1.227146] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 1.227156] CR2: 0000000000000000 CR3: 0000000018c26000 CR4: 00000000000006e0\n[ 1.227167] Call Trace:\n[ 1.227176] \n[ 1.227185] ? acpi_os_map_iomem+0x1c9/0x1e0\n[ 1.227215] ? kmem_cache_alloc_trace+0x187/0x370\n[ 1.227254] acpi_os_map_iomem+0x1c9/0x1e0\n[ 1.227288] acpi_init_fpdt+0xa8/0x253\n[ 1.227308] ? acpi_debugfs_init+0x1f/0x1f\n[ 1.227339] do_one_initcall+0x5a/0x300\n[ 1.227406] ? rcu_read_lock_sched_held+0x3f/0x80\n[ 1.227442] kernel_init_freeable+0x28b/0x2cc\n[ 1.227512] ? rest_init+0x170/0x170\n[ 1.227538] kernel_init+0x16/0x140\n[ 1.227552] ret_from_fork+0x1f/0x30\n[ 1.227639] \n[ 1.227647] irq event stamp: 186819\n[ 1.227656] hardirqs last enabled at (186825): [] __up_console_sem+0x5e/0x70\n[ 1.227672] hardirqs last disabled at (186830): [] __up_console_sem+0x43/0x70\n[ 1.227686] softirqs last enabled at (186576): [] __irq_exit_rcu+0xed/0x160\n[ 1.227701] softirqs last disabled at (186569): [] __irq_exit_rcu+0xed/0x160\n[ 1.227715] ---[ end trace 0000000000000000 ]---",
"affected": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"versions": [
{
"version": "d1eb86e59be09c12447fcb959783cbc70a9bec01",
"status": "affected",
"versionType": "git",
"lessThan": "30eca146c89d216dda95868ce00a2d35cf73d5a4"
},
{
"version": "d1eb86e59be09c12447fcb959783cbc70a9bec01",
"status": "affected",
"versionType": "git",
"lessThan": "90bfc9ae875dfbed2e6089516520204cd431dba3"
},
{
"version": "d1eb86e59be09c12447fcb959783cbc70a9bec01",
"status": "affected",
"versionType": "git",
"lessThan": "16046a716c8e1f447909bec9b478d58e6e25e513"
},
{
"version": "d1eb86e59be09c12447fcb959783cbc70a9bec01",
"status": "affected",
"versionType": "git",
"lessThan": "211391bf04b3c74e250c566eeff9cf808156c693"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"versions": [
{
"version": "5.12",
"status": "affected"
},
{
"version": "0",
"status": "unaffected",
"versionType": "semver",
"lessThan": "5.12"
},
{
"version": "5.15.75",
"status": "unaffected",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"version": "5.19.17",
"status": "unaffected",
"versionType": "semver",
"lessThanOrEqual": "5.19.*"
},
{
"version": "6.0.3",
"status": "unaffected",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"version": "6.1",
"status": "unaffected",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
]
}
]
}
}
}