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.
References
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 06:36
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/587acad41f1bc48e16f42bb2aca63bf323380be8 - Patch | |
| References | () https://git.kernel.org/stable/c/bb851d0fb02547d03cd40106b5f2391c4fed6ed1 - Patch | |
| References | () https://git.kernel.org/stable/c/c94cbd262b6aa3b54d73a1ed1f9c0d19df57f4ff - Patch |
10 Jun 2024, 19:22
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/587acad41f1bc48e16f42bb2aca63bf323380be8 - Patch | |
| References | () https://git.kernel.org/stable/c/bb851d0fb02547d03cd40106b5f2391c4fed6ed1 - Patch | |
| References | () https://git.kernel.org/stable/c/c94cbd262b6aa3b54d73a1ed1f9c0d19df57f4ff - Patch | |
| Summary |
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| First Time |
Linux
Linux linux Kernel |
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| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-476 |
24 May 2024, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-05-24 15:15
Updated : 2024-11-21 06:36
NVD link : CVE-2021-47559
Mitre link : CVE-2021-47559
CVE.ORG link : CVE-2021-47559
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference