CVE-2021-47377

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47377
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.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

28 May 2024, 19:15

Type Values Removed Values Added
References
  • {'url': 'https://git.kernel.org/stable/c/29917bbb07c30be295dece245c7c21872e1a6fbb', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/372d3e6ea1e115942fdfb4b25f7003d822d071be', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/6bba79c6a073741b672b0bf86a1f03c0fe47f973', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/8480ed9c2bbd56fc86524998e5f2e3e22f5038f6', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/922fd5b6bb13ad31ff36e86e2eba2f26d8135272', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/c5d5a43dd2b649a0a290bfed00fb76d1aff89be6', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
Summary (en) In the Linux kernel, the following vulnerability has been resolved: xen/balloon: use a kernel thread instead a workqueue Today the Xen ballooning is done via delayed work in a workqueue. This might result in workqueue hangups being reported in case of large amounts of memory are being ballooned in one go (here 16GB): BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 stuck for 64s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 12: cpus=6 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 in-flight: 229:balloon_process pending: cache_reap workqueue events_freezable_power_: flags=0x84 pwq 12: cpus=6 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: disk_events_workfn workqueue mm_percpu_wq: flags=0x8 pwq 12: cpus=6 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: vmstat_update pool 12: cpus=6 node=0 flags=0x0 nice=0 hung=64s workers=3 idle: 2222 43 This can easily be avoided by using a dedicated kernel thread for doing the ballooning work. (en) Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

21 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 15:15

Updated : 2024-05-28 19:15

NVD link : CVE-2021-47377

Mitre link : CVE-2021-47377

CVE.ORG link : CVE-2021-47377

JSON object : View

Products Affected

No product.

CWE

No CWE.