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CVE-2023-53609 (GCVE-0-2023-53609)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:44 – Updated: 2026-08-05 09:15
VLAI
Title
scsi: Revert "scsi: core: Do not increase scsi_device's iorequest_cnt if dispatch failed"
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: Revert "scsi: core: Do not increase scsi_device's iorequest_cnt if dispatch failed" The "atomic_inc(&cmd->device->iorequest_cnt)" in scsi_queue_rq() would cause kernel panic because cmd->device may be freed after returning from scsi_dispatch_cmd(). This reverts commit cfee29ffb45b1c9798011b19d454637d1b0fe87d.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cfee29ffb45b1c9798011b19d454637d1b0fe87d , < 35fe6fa57b994e7da222893adf0bb748d6055e73 (git)
Affected: cfee29ffb45b1c9798011b19d454637d1b0fe87d , < 6ca9818d1624e136a76ae8faedb6b6c95ca66903 (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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              "value": "AV:L - The vulnerable code is the SCSI mid-layer dispatch path (scsi_queue_rq/scsi_dispatch_cmd) on the initiator side, reached only by submitting I/O to a local SCSI device; there is no remote/network trigger.\nAC:L - Exploitation is a cross-CPU UAF race between command completion/device teardown and the trailing atomic_inc; an attacker controlling a removable/hot-pluggable SCSI device can drive both I/O and removal and retry the race repeatedly, so complexity is Low.\nPR:L - Reaching the vulnerable atomic_inc requires a local authenticated user able to submit I/O to (or open) a SCSI device; no elevated capability is needed to dispatch a command down this path.\nUI:N - The bug is triggered by ordinary I/O submission and concurrent device release; no action by a separate victim user is required.\nS:U - The corruption is confined to the kernel\u0027s own memory within the same security authority; no VM/IOMMU/sandbox boundary is crossed.\nC:H - The use-after-free operates on a freed scsi_device slab object whose contents an attacker can control via heap grooming, and per UAF scoring guidance such freed-object access is treated as enabling high-impact information disclosure.\nI:H - The atomic_inc is a use-after-free read-modify-write into a freed, potentially attacker-reallocated object, a memory-corruption write primitive that per guidance is scored High.\nA:H - The commit explicitly states the bug causes a kernel panic, and any use-after-free reliably produces a crash/oops."
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      "cve": "CVE-2023-53609",
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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

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.