github - ghsa-2xp4-9hmm-63gj

ghsa-2xp4-9hmm-63gj

Vulnerability from github

Published

2024-03-04 18:30

Modified

2024-03-04 18:30

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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47090"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-04T18:15:07Z",
    "severity": null
  },
  "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": "GHSA-2xp4-9hmm-63gj",
  "modified": "2024-03-04T18:30:38Z",
  "published": "2024-03-04T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47090"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-47090

Vulnerability from cvelistv5

Published

2024-03-04 18:10

Modified

2024-12-19 07:35

Severity ?

Summary

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

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

Version

▼

Linux

Version: b94e02822debdf0cc473556aad7dcc859f216653
Version: b94e02822debdf0cc473556aad7dcc859f216653
Version: b94e02822debdf0cc473556aad7dcc859f216653

Linux

Version: 5.10

Show details on NVD website

JSON

To clipboard

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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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