fkie_cve-2025-68327
Vulnerability from fkie_nvd
Published
2025-12-22 17:16
Modified
2025-12-23 14:51
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: Fix synchronous external abort on unbind A synchronous external abort occurs on the Renesas RZ/G3S SoC if unbind is executed after the configuration sequence described above: modprobe usb_f_ecm modprobe libcomposite modprobe configfs cd /sys/kernel/config/usb_gadget mkdir -p g1 cd g1 echo "0x1d6b" > idVendor echo "0x0104" > idProduct mkdir -p strings/0x409 echo "0123456789" > strings/0x409/serialnumber echo "Renesas." > strings/0x409/manufacturer echo "Ethernet Gadget" > strings/0x409/product mkdir -p functions/ecm.usb0 mkdir -p configs/c.1 mkdir -p configs/c.1/strings/0x409 echo "ECM" > configs/c.1/strings/0x409/configuration if [ ! -L configs/c.1/ecm.usb0 ]; then ln -s functions/ecm.usb0 configs/c.1 fi echo 11e20000.usb > UDC echo 11e20000.usb > /sys/bus/platform/drivers/renesas_usbhs/unbind The displayed trace is as follows: Internal error: synchronous external abort: 0000000096000010 [#1] SMP CPU: 0 UID: 0 PID: 188 Comm: sh Tainted: G M 6.17.0-rc7-next-20250922-00010-g41050493b2bd #55 PREEMPT Tainted: [M]=MACHINE_CHECK Hardware name: Renesas SMARC EVK version 2 based on r9a08g045s33 (DT) pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : usbhs_sys_function_pullup+0x10/0x40 [renesas_usbhs] lr : usbhsg_update_pullup+0x3c/0x68 [renesas_usbhs] sp : ffff8000838b3920 x29: ffff8000838b3920 x28: ffff00000d585780 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: ffff00000c3e3810 x23: ffff00000d5e5c80 x22: ffff00000d5e5d40 x21: 0000000000000000 x20: 0000000000000000 x19: ffff00000d5e5c80 x18: 0000000000000020 x17: 2e30303230316531 x16: 312d7968703a7968 x15: 3d454d414e5f4344 x14: 000000000000002c x13: 0000000000000000 x12: 0000000000000000 x11: ffff00000f358f38 x10: ffff00000f358db0 x9 : ffff00000b41f418 x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff6364626d x5 : 8080808000000000 x4 : 000000004b5ccb9d x3 : 0000000000000000 x2 : 0000000000000000 x1 : ffff800083790000 x0 : ffff00000d5e5c80 Call trace: usbhs_sys_function_pullup+0x10/0x40 [renesas_usbhs] (P) usbhsg_pullup+0x4c/0x7c [renesas_usbhs] usb_gadget_disconnect_locked+0x48/0xd4 gadget_unbind_driver+0x44/0x114 device_remove+0x4c/0x80 device_release_driver_internal+0x1c8/0x224 device_release_driver+0x18/0x24 bus_remove_device+0xcc/0x10c device_del+0x14c/0x404 usb_del_gadget+0x88/0xc0 usb_del_gadget_udc+0x18/0x30 usbhs_mod_gadget_remove+0x24/0x44 [renesas_usbhs] usbhs_mod_remove+0x20/0x30 [renesas_usbhs] usbhs_remove+0x98/0xdc [renesas_usbhs] platform_remove+0x20/0x30 device_remove+0x4c/0x80 device_release_driver_internal+0x1c8/0x224 device_driver_detach+0x18/0x24 unbind_store+0xb4/0xb8 drv_attr_store+0x24/0x38 sysfs_kf_write+0x7c/0x94 kernfs_fop_write_iter+0x128/0x1b8 vfs_write+0x2ac/0x350 ksys_write+0x68/0xfc __arm64_sys_write+0x1c/0x28 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xf0 el0t_64_sync_handler+0xa0/0xe4 el0t_64_sync+0x198/0x19c Code: 7100003f 1a9f07e1 531c6c22 f9400001 (79400021) ---[ end trace 0000000000000000 ]--- note: sh[188] exited with irqs disabled note: sh[188] exited with preempt_count 1 The issue occurs because usbhs_sys_function_pullup(), which accesses the IP registers, is executed after the USBHS clocks have been disabled. The problem is reproducible on the Renesas RZ/G3S SoC starting with the addition of module stop in the clock enable/disable APIs. With module stop functionality enabled, a bus error is expected if a master accesses a module whose clock has been stopped and module stop activated. Disable the IP clocks at the end of remove.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/230b1bc1310edcd5c1b71dcd6b77ccba43139cb5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26838f147aeaa8f820ff799d72815fba5e209bd9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d86bc8b188a77c8d6f7252280ec2bd24ad6fbc1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa658a6d5ac21c7cde54c6d015f2d4daff32e02d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd5e86e34c66a831b5cb9b720ad411a006962cc8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb9ac779830b2235847b72cb15cf07c7e3333c5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd1a7bf3a8cac13f6d2d52d8c7570ba41621db9a
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: renesas_usbhs: Fix synchronous external abort on unbind\n\nA synchronous external abort occurs on the Renesas RZ/G3S SoC if unbind is\nexecuted after the configuration sequence described above:\n\nmodprobe usb_f_ecm\nmodprobe libcomposite\nmodprobe configfs\ncd /sys/kernel/config/usb_gadget\nmkdir -p g1\ncd g1\necho \"0x1d6b\" \u003e idVendor\necho \"0x0104\" \u003e idProduct\nmkdir -p strings/0x409\necho \"0123456789\" \u003e strings/0x409/serialnumber\necho \"Renesas.\" \u003e strings/0x409/manufacturer\necho \"Ethernet Gadget\" \u003e strings/0x409/product\nmkdir -p functions/ecm.usb0\nmkdir -p configs/c.1\nmkdir -p configs/c.1/strings/0x409\necho \"ECM\" \u003e configs/c.1/strings/0x409/configuration\n\nif [ ! -L configs/c.1/ecm.usb0 ]; then\n        ln -s functions/ecm.usb0 configs/c.1\nfi\n\necho 11e20000.usb \u003e UDC\necho 11e20000.usb \u003e /sys/bus/platform/drivers/renesas_usbhs/unbind\n\nThe displayed trace is as follows:\n\n Internal error: synchronous external abort: 0000000096000010 [#1] SMP\n CPU: 0 UID: 0 PID: 188 Comm: sh Tainted: G M 6.17.0-rc7-next-20250922-00010-g41050493b2bd #55 PREEMPT\n Tainted: [M]=MACHINE_CHECK\n Hardware name: Renesas SMARC EVK version 2 based on r9a08g045s33 (DT)\n pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : usbhs_sys_function_pullup+0x10/0x40 [renesas_usbhs]\n lr : usbhsg_update_pullup+0x3c/0x68 [renesas_usbhs]\n sp : ffff8000838b3920\n x29: ffff8000838b3920 x28: ffff00000d585780 x27: 0000000000000000\n x26: 0000000000000000 x25: 0000000000000000 x24: ffff00000c3e3810\n x23: ffff00000d5e5c80 x22: ffff00000d5e5d40 x21: 0000000000000000\n x20: 0000000000000000 x19: ffff00000d5e5c80 x18: 0000000000000020\n x17: 2e30303230316531 x16: 312d7968703a7968 x15: 3d454d414e5f4344\n x14: 000000000000002c x13: 0000000000000000 x12: 0000000000000000\n x11: ffff00000f358f38 x10: ffff00000f358db0 x9 : ffff00000b41f418\n x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff6364626d\n x5 : 8080808000000000 x4 : 000000004b5ccb9d x3 : 0000000000000000\n x2 : 0000000000000000 x1 : ffff800083790000 x0 : ffff00000d5e5c80\n Call trace:\n usbhs_sys_function_pullup+0x10/0x40 [renesas_usbhs] (P)\n usbhsg_pullup+0x4c/0x7c [renesas_usbhs]\n usb_gadget_disconnect_locked+0x48/0xd4\n gadget_unbind_driver+0x44/0x114\n device_remove+0x4c/0x80\n device_release_driver_internal+0x1c8/0x224\n device_release_driver+0x18/0x24\n bus_remove_device+0xcc/0x10c\n device_del+0x14c/0x404\n usb_del_gadget+0x88/0xc0\n usb_del_gadget_udc+0x18/0x30\n usbhs_mod_gadget_remove+0x24/0x44 [renesas_usbhs]\n usbhs_mod_remove+0x20/0x30 [renesas_usbhs]\n usbhs_remove+0x98/0xdc [renesas_usbhs]\n platform_remove+0x20/0x30\n device_remove+0x4c/0x80\n device_release_driver_internal+0x1c8/0x224\n device_driver_detach+0x18/0x24\n unbind_store+0xb4/0xb8\n drv_attr_store+0x24/0x38\n sysfs_kf_write+0x7c/0x94\n kernfs_fop_write_iter+0x128/0x1b8\n vfs_write+0x2ac/0x350\n ksys_write+0x68/0xfc\n __arm64_sys_write+0x1c/0x28\n invoke_syscall+0x48/0x110\n el0_svc_common.constprop.0+0xc0/0xe0\n do_el0_svc+0x1c/0x28\n el0_svc+0x34/0xf0\n el0t_64_sync_handler+0xa0/0xe4\n el0t_64_sync+0x198/0x19c\n Code: 7100003f 1a9f07e1 531c6c22 f9400001 (79400021)\n ---[ end trace 0000000000000000 ]---\n note: sh[188] exited with irqs disabled\n note: sh[188] exited with preempt_count 1\n\nThe issue occurs because usbhs_sys_function_pullup(), which accesses the IP\nregisters, is executed after the USBHS clocks have been disabled. The\nproblem is reproducible on the Renesas RZ/G3S SoC starting with the\naddition of module stop in the clock enable/disable APIs. With module stop\nfunctionality enabled, a bus error is expected if a master accesses a\nmodule whose clock has been stopped and module stop activated.\n\nDisable the IP clocks at the end of remove."
    }
  ],
  "id": "CVE-2025-68327",
  "lastModified": "2025-12-23T14:51:52.650",
  "metrics": {},
  "published": "2025-12-22T17:16:00.353",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/230b1bc1310edcd5c1b71dcd6b77ccba43139cb5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/26838f147aeaa8f820ff799d72815fba5e209bd9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9d86bc8b188a77c8d6f7252280ec2bd24ad6fbc1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa658a6d5ac21c7cde54c6d015f2d4daff32e02d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cd5e86e34c66a831b5cb9b720ad411a006962cc8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb9ac779830b2235847b72cb15cf07c7e3333c5e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fd1a7bf3a8cac13f6d2d52d8c7570ba41621db9a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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