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CVE-2024-44957 (GCVE-0-2024-44957)

Vulnerability from cvelistv5 – Published: 2024-09-04 18:35 – Updated: 2026-05-11 20:32
VLAI
Title
xen: privcmd: Switch from mutex to spinlock for irqfds
Summary
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfd_wakeup() gets EPOLLHUP, when it is called by eventfd_release() by way of wake_up_poll(&ctx->wqh, EPOLLHUP), which gets called under spin_lock_irqsave(). We can't use a mutex here as it will lead to a deadlock. Fix it by switching over to a spin lock.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:40 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 , < c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c (git)
Affected: f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 , < 49f2a5da6785b2dbde93e291cae037662440346e (git)
Affected: f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 , < 1c682593096a487fd9aebc079a307ff7a6d054a3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.46 , ≤ 6.6.* (semver)
Unaffected: 6.10.5 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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