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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-26715

usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend In current scenario if Plug-out and Plug-In performed continuously there could be a chance while checking for dwc->gadget_driver in dwc3_gadget_suspend, a NULL pointer dereference may occur. Call Stack: CPU1: CPU2: gadget_unbind_driver dwc3_suspend_common dwc3_gadget_stop dwc3_gadget_suspend dwc3_disconnect_gadget CPU1 basically clears the variable and CPU2 checks the variable. Consider CPU1 is running and right before gadget_driver is cleared and in parallel CPU2 executes dwc3_gadget_suspend where it finds dwc->gadget_driver which is not NULL and resumes execution and then CPU1 completes execution. CPU2 executes dwc3_disconnect_gadget where it checks dwc->gadget_driver is already NULL because of which the NULL pointer deference occur.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9772b47a4c2916d645c551228b6085ea24acbe5d to < 88936ceab6b426f1312327e9ef849c215c6007a7affected
  • 9772b47a4c2916d645c551228b6085ea24acbe5d to < 57e2e42ccd3cd6183228269715ed032f44536751affected
  • 9772b47a4c2916d645c551228b6085ea24acbe5d to < c7ebd8149ee519d27232e6e4940e9c02071b568baffected
  • 9772b47a4c2916d645c551228b6085ea24acbe5d to < 36695d5eeeefe5a64b47d0336e7c8fc144e78182affected
  • 9772b47a4c2916d645c551228b6085ea24acbe5d to < 61a348857e869432e6a920ad8ea9132e8d44c316affected
  • 8cca5c85393a7a490d4d7942c24d73d29cc77b3eaffected
  • df2ca3271569367352835f981618e284fdc4ca94affected
  • 3.16.81 to < 3.17affected
  • 4.4.178 to < 4.5affected

Linux Linux

Default version status: affected

  • 4.6affected
  • 0 to < 4.6unaffected
  • 5.15.149 to ≤ 5.15.*unaffected
  • 6.1.79 to ≤ 6.1.*unaffected
  • 6.6.18 to ≤ 6.6.*unaffected
  • 6.7.6 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References