usb: usbip: fix a refcount leak in stub_probe()
In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.
02 / AFFECTED SOFTWARE
Affected packages
518 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/11c65408bd0ba1d9cd1307caa38169292de9cdfb
- https://git.kernel.org/stable/c/247d3809e45a34d9e1a3a2bb7012e31ed8b46031
- https://git.kernel.org/stable/c/2f0ae93ec33c8456cdfbf7876b80403a6318ebce
- https://git.kernel.org/stable/c/51422046be504515eb5a591adf0f424b62f46804
- https://git.kernel.org/stable/c/6bafee2f18af5e5ac125e42960bc65496d0e56a0
- https://git.kernel.org/stable/c/8afb048800919d0ab10c57983940eba956339f21
- https://git.kernel.org/stable/c/9ec4cbf1cc55d126759051acfe328d489c5d6e60
- https://git.kernel.org/stable/c/bcbb795a9e78180d74c6ab21518da87e803dfdce
- https://git.kernel.org/stable/c/f20d2d3b3364ce6525c050a8b6b4c54c8c19674d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49389.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49389