gsd - gsd-2021-47090

gsd-2021-47090

Vulnerability from gsd

Modified

2024-03-01 06:04

Details

In the Linux kernel, the following vulnerability has been resolved: mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page() Hulk Robot reported a panic in put_page_testzero() when testing madvise() with MADV_SOFT_OFFLINE. The BUG() is triggered when retrying get_any_page(). This is because we keep MF_COUNT_INCREASED flag in second try but the refcnt is not increased. page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:737! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 5 PID: 2135 Comm: sshd Tainted: G B 5.16.0-rc6-dirty #373 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: release_pages+0x53f/0x840 Call Trace: free_pages_and_swap_cache+0x64/0x80 tlb_flush_mmu+0x6f/0x220 unmap_page_range+0xe6c/0x12c0 unmap_single_vma+0x90/0x170 unmap_vmas+0xc4/0x180 exit_mmap+0xde/0x3a0 mmput+0xa3/0x250 do_exit+0x564/0x1470 do_group_exit+0x3b/0x100 __do_sys_exit_group+0x13/0x20 __x64_sys_exit_group+0x16/0x20 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae Modules linked in: ---[ end trace e99579b570fe0649 ]--- RIP: 0010:release_pages+0x53f/0x840

Aliases

CVE-2021-47090

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-47090"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()\n\nHulk Robot reported a panic in put_page_testzero() when testing\nmadvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying\nget_any_page().  This is because we keep MF_COUNT_INCREASED flag in\nsecond try but the refcnt is not increased.\n\n    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)\n    ------------[ cut here ]------------\n    kernel BUG at include/linux/mm.h:737!\n    invalid opcode: 0000 [#1] PREEMPT SMP\n    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n    RIP: release_pages+0x53f/0x840\n    Call Trace:\n      free_pages_and_swap_cache+0x64/0x80\n      tlb_flush_mmu+0x6f/0x220\n      unmap_page_range+0xe6c/0x12c0\n      unmap_single_vma+0x90/0x170\n      unmap_vmas+0xc4/0x180\n      exit_mmap+0xde/0x3a0\n      mmput+0xa3/0x250\n      do_exit+0x564/0x1470\n      do_group_exit+0x3b/0x100\n      __do_sys_exit_group+0x13/0x20\n      __x64_sys_exit_group+0x16/0x20\n      do_syscall_64+0x34/0x80\n      entry_SYSCALL_64_after_hwframe+0x44/0xae\n    Modules linked in:\n    ---[ end trace e99579b570fe0649 ]---\n    RIP: 0010:release_pages+0x53f/0x840",
      "id": "GSD-2021-47090",
      "modified": "2024-03-01T06:04:48.326863Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-47090",
        "STATE": "PUBLIC"
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()\n\nHulk Robot reported a panic in put_page_testzero() when testing\nmadvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying\nget_any_page().  This is because we keep MF_COUNT_INCREASED flag in\nsecond try but the refcnt is not increased.\n\n    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)\n    ------------[ cut here ]------------\n    kernel BUG at include/linux/mm.h:737!\n    invalid opcode: 0000 [#1] PREEMPT SMP\n    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n    RIP: release_pages+0x53f/0x840\n    Call Trace:\n      free_pages_and_swap_cache+0x64/0x80\n      tlb_flush_mmu+0x6f/0x220\n      unmap_page_range+0xe6c/0x12c0\n      unmap_single_vma+0x90/0x170\n      unmap_vmas+0xc4/0x180\n      exit_mmap+0xde/0x3a0\n      mmput+0xa3/0x250\n      do_exit+0x564/0x1470\n      do_group_exit+0x3b/0x100\n      __do_sys_exit_group+0x13/0x20\n      __x64_sys_exit_group+0x16/0x20\n      do_syscall_64+0x34/0x80\n      entry_SYSCALL_64_after_hwframe+0x44/0xae\n    Modules linked in:\n    ---[ end trace e99579b570fe0649 ]---\n    RIP: 0010:release_pages+0x53f/0x840"
          }
        ],
        "id": "CVE-2021-47090",
        "lastModified": "2024-03-05T13:41:01.900",
        "metrics": {},
        "published": "2024-03-04T18:15:07.610",
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        "vulnStatus": "Awaiting Analysis"
      }
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}

cve-2021-47090

Vulnerability from cvelistv5

Published

2024-03-04 18:10

Modified

2024-11-04 11:59

Severity ?

Summary

mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()

References

▼	URL	Tags
	https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5
	https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3
	https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2024-06-26T20:39:00.892083Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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