{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50320", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-15T14:18:36.814Z", "datePublished": "2025-09-15T14:48:53.475Z", "dateUpdated": "2026-05-11T19:17:02.028Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:17:02.028Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/acpi/acpi_fpdt.c" ], "versions": [ { "version": "d1eb86e59be09c12447fcb959783cbc70a9bec01", "lessThan": "30eca146c89d216dda95868ce00a2d35cf73d5a4", "status": "affected", "versionType": "git" }, { "version": "d1eb86e59be09c12447fcb959783cbc70a9bec01", "lessThan": "90bfc9ae875dfbed2e6089516520204cd431dba3", "status": "affected", "versionType": "git" }, { "version": "d1eb86e59be09c12447fcb959783cbc70a9bec01", "lessThan": "16046a716c8e1f447909bec9b478d58e6e25e513", "status": "affected", "versionType": "git" }, { "version": "d1eb86e59be09c12447fcb959783cbc70a9bec01", "lessThan": "211391bf04b3c74e250c566eeff9cf808156c693", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/acpi/acpi_fpdt.c" ], "versions": [ { "version": "5.12", "status": "affected" }, { "version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.75", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19.17", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.3", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.15.75" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.19.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.0.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/30eca146c89d216dda95868ce00a2d35cf73d5a4" }, { "url": "https://git.kernel.org/stable/c/90bfc9ae875dfbed2e6089516520204cd431dba3" }, { "url": "https://git.kernel.org/stable/c/16046a716c8e1f447909bec9b478d58e6e25e513" }, { "url": "https://git.kernel.org/stable/c/211391bf04b3c74e250c566eeff9cf808156c693" } ], "title": "ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address", "x_generator": { "engine": "bippy-1.2.0" } } } }