Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net/smc: Fix NULL pointer dereferencing in smc_vlan_by_tcpsk() Coverity reports a possible NULL dereferencing problem: in smc_vlan_by_tcpsk(): 6. returned_null: netdev_lower_get_next returns NULL (checked 29 out of 30 times). 7. var_assigned: Assigning: ndev = NULL return value from netdev_lower_get_next. 1623 ndev = (struct net_device *)netdev_lower_get_next(ndev, &lower); CID 1468509 (#1 of 1): Dereference null return value (NULL_RETURNS) 8. dereference: Dereferencing a pointer that might be NULL ndev when calling is_vlan_dev. 1624 if (is_vlan_dev(ndev)) { Remove the manual implementation and use netdev_walk_all_lower_dev() to iterate over the lower devices. While on it remove an obsolete function parameter comment.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cb9d43f6775457cac75544bc4197f26ac2b6f294 before c94cbd262b6aa3b54d73a1ed1f9c0d19df57f4ff; affected cb9d43f6775457cac75544bc4197f26ac2b6f294 before bb851d0fb02547d03cd40106b5f2391c4fed6ed1; affected cb9d43f6775457cac75544bc4197f26ac2b6f294 before 587acad41f1bc48e16f42bb2aca63bf323380be8 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 5.10.83 through 5.10.*; unaffected 5.15.6 through 5.15.*; unaffected 5.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c94cbd262b6aa3b54d73a1ed1f9c0d19df57f4ff
- https://git.kernel.org/stable/c/bb851d0fb02547d03cd40106b5f2391c4fed6ed1
- https://git.kernel.org/stable/c/587acad41f1bc48e16f42bb2aca63bf323380be8
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.