{"id":"CVE-2022-50210","summary":"MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nMIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK\n\nWhen CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected,\ncpu_max_bits_warn() generates a runtime warning similar as below while\nwe show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)\ninstead of NR_CPUS to iterate CPUs.\n\n[    3.052463] ------------[ cut here ]------------\n[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0\n[    3.070072] Modules linked in: efivarfs autofs4\n[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052\n[    3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27\n[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000\n[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430\n[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff\n[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890\n[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa\n[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000\n[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000\n[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000\n[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286\n[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c\n[    3.195868]         ...\n[    3.199917] Call Trace:\n[    3.203941] [\u003c98000000002086d8\u003e] show_stack+0x38/0x14c\n[    3.210666] [\u003c9800000000cf846c\u003e] dump_stack_lvl+0x60/0x88\n[    3.217625] [\u003c980000000023d268\u003e] __warn+0xd0/0x100\n[    3.223958] [\u003c9800000000cf3c90\u003e] warn_slowpath_fmt+0x7c/0xcc\n[    3.231150] [\u003c9800000000210220\u003e] show_cpuinfo+0x5e8/0x5f0\n[    3.238080] [\u003c98000000004f578c\u003e] seq_read_iter+0x354/0x4b4\n[    3.245098] [\u003c98000000004c2e90\u003e] new_sync_read+0x17c/0x1c4\n[    3.252114] [\u003c98000000004c5174\u003e] vfs_read+0x138/0x1d0\n[    3.258694] [\u003c98000000004c55f8\u003e] ksys_read+0x70/0x100\n[    3.265265] [\u003c9800000000cfde9c\u003e] do_syscall+0x7c/0x94\n[    3.271820] [\u003c9800000000202fe4\u003e] handle_syscall+0xc4/0x160\n[    3.281824] ---[ end trace 8b484262b4b8c24c ]---","modified":"2026-04-02T08:28:19.797721Z","published":"2025-06-18T11:03:49.089Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50210.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/274e44e2123417e0924c90d4b4531913b5f3aa2e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4cb392956ae392aec4aa06e661a0bb9146b0bace"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7d305823e02217b29d41fca67e3cef87fd7bd688"},{"type":"WEB","url":"https://git.kernel.org/stable/c/807adf6ffa8c3beedcd63b20f5a59c7d061df7d2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8916ec149c79cb21f5454fa7840ad96f99cf51cf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/98aaa511957667ba26d6dabe28dfa210a8f53a63"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3ac4e47510ec0753ebe1e418a334ad202784aa8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e1a534f5d074db45ae5cbac41d8912b98e96a006"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e41db8a9ce696a3382a4f098878fd4d14bccd201"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50210.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50210"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023"},{"fixed":"d3ac4e47510ec0753ebe1e418a334ad202784aa8"},{"fixed":"98aaa511957667ba26d6dabe28dfa210a8f53a63"},{"fixed":"4cb392956ae392aec4aa06e661a0bb9146b0bace"},{"fixed":"274e44e2123417e0924c90d4b4531913b5f3aa2e"},{"fixed":"807adf6ffa8c3beedcd63b20f5a59c7d061df7d2"},{"fixed":"e41db8a9ce696a3382a4f098878fd4d14bccd201"},{"fixed":"8916ec149c79cb21f5454fa7840ad96f99cf51cf"},{"fixed":"7d305823e02217b29d41fca67e3cef87fd7bd688"},{"fixed":"e1a534f5d074db45ae5cbac41d8912b98e96a006"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50210.json"}}],"schema_version":"1.7.5"}