{"id":"CVE-2022-50210","state":"PUBLISHED","title":"MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK","description":"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] [<98000000002086d8>] show_stack+0x38/0x14c\n[    3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88\n[    3.217625] [<980000000023d268>] __warn+0xd0/0x100\n[    3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc\n[    3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0\n[    3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4\n[    3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4\n[    3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0\n[    3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100\n[    3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94\n[    3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160\n[    3.281824] ---[ end trace 8b484262b4b8c24c ]---","publishedAt":"2025-06-18T11:03:49.089Z","updatedAt":"2026-05-11T19:14:55.702Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"d3ac4e47510ec0753ebe1e418a334ad202784aa8","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"98aaa511957667ba26d6dabe28dfa210a8f53a63","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"4cb392956ae392aec4aa06e661a0bb9146b0bace","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"274e44e2123417e0924c90d4b4531913b5f3aa2e","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"807adf6ffa8c3beedcd63b20f5a59c7d061df7d2","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"e41db8a9ce696a3382a4f098878fd4d14bccd201","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"8916ec149c79cb21f5454fa7840ad96f99cf51cf","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"7d305823e02217b29d41fca67e3cef87fd7bd688","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"e1a534f5d074db45ae5cbac41d8912b98e96a006","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/mips/kernel/proc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.29","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.29","versionType":"semver"},{"version":"4.9.326","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.291","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.256","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.211","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.137","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.61","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.18","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19.2","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/mips/kernel/proc.c"]}],"references":["https://git.kernel.org/stable/c/d3ac4e47510ec0753ebe1e418a334ad202784aa8","https://git.kernel.org/stable/c/98aaa511957667ba26d6dabe28dfa210a8f53a63","https://git.kernel.org/stable/c/4cb392956ae392aec4aa06e661a0bb9146b0bace","https://git.kernel.org/stable/c/274e44e2123417e0924c90d4b4531913b5f3aa2e","https://git.kernel.org/stable/c/807adf6ffa8c3beedcd63b20f5a59c7d061df7d2","https://git.kernel.org/stable/c/e41db8a9ce696a3382a4f098878fd4d14bccd201","https://git.kernel.org/stable/c/8916ec149c79cb21f5454fa7840ad96f99cf51cf","https://git.kernel.org/stable/c/7d305823e02217b29d41fca67e3cef87fd7bd688","https://git.kernel.org/stable/c/e1a534f5d074db45ae5cbac41d8912b98e96a006"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50210.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50210","state":"PUBLISHED","datePublished":"2025-06-18T11:03:49.089Z","dateUpdated":"2026-05-11T19:14:55.702Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-06-18T10:57:27.429Z"},"containers":{"cna":{"title":"MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK","descriptions":[{"lang":"en","value":"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] [<98000000002086d8>] show_stack+0x38/0x14c\n[    3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88\n[    3.217625] [<980000000023d268>] __warn+0xd0/0x100\n[    3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc\n[    3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0\n[    3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4\n[    3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4\n[    3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0\n[    3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100\n[    3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94\n[    3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160\n[    3.281824] ---[ end trace 8b484262b4b8c24c ]---"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"d3ac4e47510ec0753ebe1e418a334ad202784aa8","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"98aaa511957667ba26d6dabe28dfa210a8f53a63","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"4cb392956ae392aec4aa06e661a0bb9146b0bace","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"274e44e2123417e0924c90d4b4531913b5f3aa2e","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"807adf6ffa8c3beedcd63b20f5a59c7d061df7d2","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"e41db8a9ce696a3382a4f098878fd4d14bccd201","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"8916ec149c79cb21f5454fa7840ad96f99cf51cf","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"7d305823e02217b29d41fca67e3cef87fd7bd688","versionType":"git"},{"version":"ae7a47e72e1a0b5e2b46d1596bc2c22942a73023","status":"affected","lessThan":"e1a534f5d074db45ae5cbac41d8912b98e96a006","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/mips/kernel/proc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.29","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.29","versionType":"semver"},{"version":"4.9.326","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.291","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.256","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.211","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.137","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.61","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.18","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19.2","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/mips/kernel/proc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d3ac4e47510ec0753ebe1e418a334ad202784aa8"},{"url":"https://git.kernel.org/stable/c/98aaa511957667ba26d6dabe28dfa210a8f53a63"},{"url":"https://git.kernel.org/stable/c/4cb392956ae392aec4aa06e661a0bb9146b0bace"},{"url":"https://git.kernel.org/stable/c/274e44e2123417e0924c90d4b4531913b5f3aa2e"},{"url":"https://git.kernel.org/stable/c/807adf6ffa8c3beedcd63b20f5a59c7d061df7d2"},{"url":"https://git.kernel.org/stable/c/e41db8a9ce696a3382a4f098878fd4d14bccd201"},{"url":"https://git.kernel.org/stable/c/8916ec149c79cb21f5454fa7840ad96f99cf51cf"},{"url":"https://git.kernel.org/stable/c/7d305823e02217b29d41fca67e3cef87fd7bd688"},{"url":"https://git.kernel.org/stable/c/e1a534f5d074db45ae5cbac41d8912b98e96a006"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:14:55.702Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"4.9.326"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"4.14.291"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"4.19.256"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.4.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.10.137"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.15.61"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.19.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}