Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb() This patch addresses a null-ptr-deref in qt2_process_read_urb() due to an incorrect bounds check in the following: if (newport > serial->num_ports) { dev_err(&port->dev, "%s - port change to invalid port: %i\n", __func__, newport); break; } The condition doesn't account for the valid range of the serial->port buffer, which is from 0 to serial->num_ports - 1. When newport is equal to serial->num_ports, the assignment of "port" in the following code is out-of-bounds and NULL: serial_priv->current_port = newport; port = serial->port[serial_priv->current_port]; The fix checks if newport is greater than or equal to serial->num_ports indicating it is out-of-bounds.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f7a33e608d9ae022b7f49307921627e34e9484ed before fa4c7472469d97c4707698b4c0e098f8cfc2bf22; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 94770cf7c5124f0268d481886829dc2beecc4507; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 6068dcff7f19e9fa6fa23ee03453ad6a40fa4efe; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 4b9b41fabcd38990f69ef0cee9c631d954a2b530; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 6377838560c03b36e1153a42ef727533def9b68f; affected f7a33e608d9ae022b7f49307921627e34e9484ed before f371471708c7d997f763b0e70565026eb67cc470; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 8542b33622571f54dfc2a267fce378b6e3840b8b; affected f7a33e608d9ae022b7f49307921627e34e9484ed before 575a5adf48b06a2980c9eeffedf699ed5534fade |
| Linux / Linux | affected 3.5; unaffected 0 before 3.5; unaffected 5.4.290 through 5.4.*; unaffected 5.10.234 through 5.10.*; unaffected 5.15.178 through 5.15.*; unaffected 6.1.128 through 6.1.*; unaffected 6.6.75 through 6.6.*; unaffected 6.12.12 through 6.12.*; unaffected 6.13.1 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fa4c7472469d97c4707698b4c0e098f8cfc2bf22
- https://git.kernel.org/stable/c/94770cf7c5124f0268d481886829dc2beecc4507
- https://git.kernel.org/stable/c/6068dcff7f19e9fa6fa23ee03453ad6a40fa4efe
- https://git.kernel.org/stable/c/4b9b41fabcd38990f69ef0cee9c631d954a2b530
- https://git.kernel.org/stable/c/6377838560c03b36e1153a42ef727533def9b68f
- https://git.kernel.org/stable/c/f371471708c7d997f763b0e70565026eb67cc470
- https://git.kernel.org/stable/c/8542b33622571f54dfc2a267fce378b6e3840b8b
- https://git.kernel.org/stable/c/575a5adf48b06a2980c9eeffedf699ed5534fade
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.