CVE-2023-53475 (GCVE-0-2023-53475)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:42 – Updated: 2026-05-11 19:45
VLAI
Title
usb: xhci: tegra: fix sleep in atomic call
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: tegra: fix sleep in atomic call When we set the dual-role port to Host mode, we observed the following splat: [ 167.057718] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:229 [ 167.057872] Workqueue: events tegra_xusb_usb_phy_work [ 167.057954] Call trace: [ 167.057962] dump_backtrace+0x0/0x210 [ 167.057996] show_stack+0x30/0x50 [ 167.058020] dump_stack_lvl+0x64/0x84 [ 167.058065] dump_stack+0x14/0x34 [ 167.058100] __might_resched+0x144/0x180 [ 167.058140] __might_sleep+0x64/0xd0 [ 167.058171] slab_pre_alloc_hook.constprop.0+0xa8/0x110 [ 167.058202] __kmalloc_track_caller+0x74/0x2b0 [ 167.058233] kvasprintf+0xa4/0x190 [ 167.058261] kasprintf+0x58/0x90 [ 167.058285] tegra_xusb_find_port_node.isra.0+0x58/0xd0 [ 167.058334] tegra_xusb_find_port+0x38/0xa0 [ 167.058380] tegra_xusb_padctl_get_usb3_companion+0x38/0xd0 [ 167.058430] tegra_xhci_id_notify+0x8c/0x1e0 [ 167.058473] notifier_call_chain+0x88/0x100 [ 167.058506] atomic_notifier_call_chain+0x44/0x70 [ 167.058537] tegra_xusb_usb_phy_work+0x60/0xd0 [ 167.058581] process_one_work+0x1dc/0x4c0 [ 167.058618] worker_thread+0x54/0x410 [ 167.058650] kthread+0x188/0x1b0 [ 167.058672] ret_from_fork+0x10/0x20 The function tegra_xusb_padctl_get_usb3_companion eventually calls tegra_xusb_find_port and this in turn calls kasprintf which might sleep and so cannot be called from an atomic context. Fix this by moving the call to tegra_xusb_padctl_get_usb3_companion to the tegra_xhci_id_work function where it is really needed.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f836e7843036fbf34320356e156cd4267fa5bfa2 , < b4b4f17aa46c025da77aed5133b08971959c9684 (git)
Affected: f836e7843036fbf34320356e156cd4267fa5bfa2 , < 1122474b757a5dd8b2b50008a97f33cdb10dff6e (git)
Affected: f836e7843036fbf34320356e156cd4267fa5bfa2 , < 130c61c516cd0684282a8f6ab163281d60642fc5 (git)
Affected: f836e7843036fbf34320356e156cd4267fa5bfa2 , < 1fe6015aa92cc0dfd875c1d3c7c1750a1b0767d9 (git)
Affected: f836e7843036fbf34320356e156cd4267fa5bfa2 , < 4c7f9d2e413dc06a157c4e5dccde84aaf4655eb3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.178 , ≤ 5.10.* (semver)
Unaffected: 5.15.107 , ≤ 5.15.* (semver)
Unaffected: 6.1.24 , ≤ 6.1.* (semver)
Unaffected: 6.2.11 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:23:53+00:00",
      "cve": "CVE-2023-53475",
      "id": "CVE-2023-53475",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "108",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: xhci: tegra: fix sleep in atomic call",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53475.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:07:14Z",
      "cve": "CVE-2023-53475",
      "id": "CVE-2023-53475",
      "initial_release_date": "2025-10-01T23:30:32Z",
      "product_status:known_affected": "387",
      "product_status:known_not_affected": "352",
      "product_status:recommended": "206",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53475",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53475.json",
      "version": "20"
    }
  }
}



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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.

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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.


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