Description
In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM) return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – 948968f8747650447c8f21c9fdba0e1973be040b
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – dd07f8971b81ad98cc754b179b331b57f35aa1ff
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – 99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – 22519eff7df2d88adcc2568d86046ce1e2b52803
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – fc7ffa7f10b9454a86369405d9814bf141b30627
- Linux / Linux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca – a66998e0fbf213d47d02813b9679426129d0d114
- Linux / Linux4.7 – 4.7
- Linux / Linux0 – 4.7
- Linux / Linux4.9.292 – 4.9.*
- Linux / Linux4.14.257 – 4.14.*
- Linux / Linux4.19.220 – 4.19.*
- Linux / Linux5.4.164 – 5.4.*
- Linux / Linux5.10.84 – 5.10.*
- Linux / Linux5.15.7 – 5.15.*
- Linux / Linux5.16 – *
References
- MISChttps://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
- MISChttps://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
- MISChttps://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
- MISChttps://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
- MISChttps://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
- MISChttps://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
- MISChttps://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114