CVE-2023-53515 (GCVE-0-2023-53515)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:46 – Updated: 2026-05-11 19:46
VLAI
Title
virtio-mmio: don't break lifecycle of vm_dev
Summary
In the Linux kernel, the following vulnerability has been resolved: virtio-mmio: don't break lifecycle of vm_dev vm_dev has a separate lifecycle because it has a 'struct device' embedded. Thus, having a release callback for it is correct. Allocating the vm_dev struct with devres totally breaks this protection, though. Instead of waiting for the vm_dev release callback, the memory is freed when the platform_device is removed. Resulting in a use-after-free when finally the callback is to be called. To easily see the problem, compile the kernel with CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs. The fix is easy, don't use devres in this case. Found during my research about object lifetime problems.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < 97a2d55ead76358245b446efd87818e919196d7a (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < b788ad3b2468512339c05f23692e36860264e674 (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < 3ff54d904fafabd0912796785e53cce4e69ca123 (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < 5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < af5818c35173e096085c6ae2e3aac605d3d15e41 (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < 2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e (git)
Affected: 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 , < 55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a (git)
Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.293 , ≤ 4.19.* (semver)
Unaffected: 5.4.255 , ≤ 5.4.* (semver)
Unaffected: 5.10.192 , ≤ 5.10.* (semver)
Unaffected: 5.15.128 , ≤ 5.15.* (semver)
Unaffected: 6.1.47 , ≤ 6.1.* (semver)
Unaffected: 6.4.12 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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}


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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.

Sightings

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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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.