CVE-2021-47575

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47575
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
CVSS

No CVSS.

References

No reference.

Configurations

No configuration.

History

20 Jun 2024, 09:15

Type Values Removed Values Added
Summary (en) In the Linux kernel, the following vulnerability has been resolved: xen/console: harden hvc_xen against event channel storms The Xen console driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using a lateeoi event channel. For the normal domU initial console this requires the introduction of bind_evtchn_to_irq_lateeoi() as there is no xenbus device available at the time the event channel is bound to the irq. As the decision whether an interrupt was spurious or not requires to test for bytes having been read from the backend, move sending the event into the if statement, as sending an event without having found any bytes to be read is making no sense at all. This is part of XSA-391 --- V2: - slightly adapt spurious irq detection (Jan Beulich) V3: - fix spurious irq detection (Jan Beulich) (en) Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
References
  • {'url': 'https://git.kernel.org/stable/c/153d1ea3272209fc970116f09051002d14422cde', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/560e64413b4a6d9bd6630e350d5f2e6a05f6ffe3', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/57e46acb3b48ea4e8efb1e1bea2e89e0c6cc43e2', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/68b78f976ca47d52c03c41eded207a312e46b934', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/728389c21176b2095fa58e858d5ef1d2f2aac429', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/8fa3a370cc2af858a9ba662ca4f2bd0917550563', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/c7eaa5082bccfc00dfdb500ac6cc86d6f24ca027', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/fe415186b43df0db1f17fa3a46275fd92107fe71', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

19 Jun 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-06-19 15:15

Updated : 2024-06-20 09:15

NVD link : CVE-2021-47575

Mitre link : CVE-2021-47575

CVE.ORG link : CVE-2021-47575

JSON object : View

Products Affected

No product.

CWE

No CWE.