CVE-2023-52898

MEDIUM EPSS 15.0%
Published Aug 21, 20241y ago · Modified Jun 17, 20262w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Aug 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference when host dies Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause null pointer dereference when host suddenly dies. Usb core may call xhci_free_dev() which frees the xhci->devs[slot_id] virt device at the same time that xhci_kill_endpoint_urbs() tries to loop through all the device's endpoints, checking if there are any cancelled urbs left to give back. hold the xhci spinlock while freeing the virt device

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel* <4.19.271
linuxlinux_kernel*≥4.20  –  <5.4.230
linuxlinux_kernel*≥5.5  –  <5.10.165
linuxlinux_kernel*≥5.11  –  <5.15.90
linuxlinux_kernel*≥5.16  –  <6.1.8
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2
    Patch