{"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"}}}}