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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-52901

usb: xhci: Check endpoint is valid before dereferencing it

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check endpoint is valid before dereferencing it When the host controller is not responding, all URBs queued to all endpoints need to be killed. This can cause a kernel panic if we dereference an invalid endpoint. Fix this by using xhci_get_virt_ep() helper to find the endpoint and checking if the endpoint is valid before dereferencing it. [233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead [233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8 [233311.853964] pc : xhci_hc_died+0x10c/0x270 [233311.853971] lr : xhci_hc_died+0x1ac/0x270 [233311.854077] Call trace: [233311.854085] xhci_hc_died+0x10c/0x270 [233311.854093] xhci_stop_endpoint_command_watchdog+0x100/0x1a4 [233311.854105] call_timer_fn+0x50/0x2d4 [233311.854112] expire_timers+0xac/0x2e4 [233311.854118] run_timer_softirq+0x300/0xabc [233311.854127] __do_softirq+0x148/0x528 [233311.854135] irq_exit+0x194/0x1a8 [233311.854143] __handle_domain_irq+0x164/0x1d0 [233311.854149] gic_handle_irq.22273+0x10c/0x188 [233311.854156] el1_irq+0xfc/0x1a8 [233311.854175] lpm_cpuidle_enter+0x25c/0x418 [msm_pm] [233311.854185] cpuidle_enter_state+0x1f0/0x764 [233311.854194] do_idle+0x594/0x6ac [233311.854201] cpu_startup_entry+0x7c/0x80 [233311.854209] secondary_start_kernel+0x170/0x198

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

  • 50e8725e7c429701e530439013f9681e1fa36b5d to < 375be2dd61a072f7b1cac9b17eea59e07b58db3aaffected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < 2d2820d5f375563690c96e60676855205abfb7f5affected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < 9891e5c73cab3fd9ed532dc50e9799e55e974766affected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < 66fc1600855c05c4ba4e997184c91cf298e0405caffected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < f39c813af0b64f44af94e435c07bfa1ddc2575f5affected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < 08864dc14a6803f0377ca77b9740b26db30c020faffected
  • 50e8725e7c429701e530439013f9681e1fa36b5d to < e8fb5bc76eb86437ab87002d4a36d6da02165654affected

Linux Linux

Default version status: affected

  • 3.15affected
  • 0 to < 3.15unaffected
  • 4.14.304 to ≤ 4.14.*unaffected
  • 4.19.271 to ≤ 4.19.*unaffected
  • 5.4.230 to ≤ 5.4.*unaffected
  • 5.10.165 to ≤ 5.10.*unaffected
  • 5.15.90 to ≤ 5.15.*unaffected
  • 6.1.8 to ≤ 6.1.*unaffected
  • 6.2 to ≤ *unaffected

References