ghsa-ffr7-x47x-5rvr
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-11-19 15:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs.

[ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 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 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<980000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]---

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50210"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:51Z",
    "severity": "MODERATE"
  },
  "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 ]---",
  "id": "GHSA-ffr7-x47x-5rvr",
  "modified": "2025-11-19T15:31:30Z",
  "published": "2025-06-18T12:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50210"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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