In the Linux kernel, the following vulnerability has been resolved:
can: mcba_usb: properly check endpoint type
Syzbot reported warning in usb_submit_urb() which is caused by wrong endpoint type. We should check that in endpoint is actually present to prevent this warning.
Found pipes are now saved to struct mcba_priv and code uses them directly instead of making pipes in place.
Fail log:
| usb 5-1: BOGUS urb xfer, pipe 3 != type 1 | WARNING: CPU: 1 PID: 49 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 | Modules linked in: | CPU: 1 PID: 49 Comm: kworker/1:2 Not tainted 5.17.0-rc6-syzkaller-00184-g38f80f42147f #0 | Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 | Workqueue: usb_hub_wq hub_event | RIP: 0010:usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 | ... | Call Trace: | <TASK> | mcba_usb_start drivers/net/can/usb/mcba_usb.c:662 [inline] | mcba_usb_probe+0x8a3/0xc50 drivers/net/can/usb/mcba_usb.c:858 | usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 | call_driver_probe drivers/base/dd.c:517 [inline]
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Ubuntu | — | Upgrade linux-gcpUpgrade linux-oracleUpgrade linux-gcp-fipsUpgrade linux-aws-fipsUpgrade linux-ibmUpgrade linux-gcp-4.15Upgrade linuxUpgrade linux-gcp-5.4Upgrade linux-kvmUpgrade linux-hweUpgrade linux-ibm-5.4Upgrade linux-azure-4.15Upgrade linux-iotUpgrade linux-hwe-5.4Upgrade linux-azure-fipsUpgrade linux-azure-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-azure-5.15Upgrade linux-aws-hweUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gkeUpgrade linux-raspi-5.4Upgrade linux-realtimeUpgrade linux-aws-5.4Upgrade linux-lowlatencyUpgrade linux-intel-iotgUpgrade linux-hwe-5.15Upgrade linux-awsUpgrade linux-bluefieldUpgrade linux-azureUpgrade linux-oracle-5.4Upgrade linux-raspiUpgrade linux-fips | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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