In the Linux kernel, the following vulnerability has been resolved:
ice: Avoid crash from unnecessary IDA free
In the remove path, there is an attempt to free the aux_idx IDA whether
it was allocated or not. This can potentially cause a crash when
unloading the driver on systems that do not initialize support for RDMA.
But, this free cannot be gated by the status bit for RDMA, since it is
allocated if the driver detects support for RDMA at probe time, but the
driver can enter into a state where RDMA is not supported after the IDA
has been allocated at probe time and this would lead to a memory leak.
Initialize aux_idx to an invalid value and check for a valid value when
unloading to determine if an IDA free is necessary.
References
Configurations
Configuration 1 (hide)
|
History
24 Sep 2025, 01:22
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux
Linux linux Kernel |
|
| CWE | CWE-401 | |
| References | () https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e - Patch | |
| References | () https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b - Patch |
Information
Published : 2024-05-22 07:15
Updated : 2025-09-24 01:22
NVD link : CVE-2021-47453
Mitre link : CVE-2021-47453
CVE.ORG link : CVE-2021-47453
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-401
Missing Release of Memory after Effective Lifetime