CVE-2023-53470
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: ionic: catch failure from devlink_alloc Add a check for NULL on the alloc return. If devlink_alloc() fails and we try to use devlink_priv() on the NULL return, the kernel gets very unhappy and panics. With this fix, the driver load will still fail, but at least it won't panic the kernel.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedOct 1, 2025
First seenOct 1, 2025
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.15.112, 6.1.29, 6.2.16, 6.3.3 or later
Patches
- git.kernel.org/stable/c/0020c16c8af7f4bc9503a2088fb30793b6771fac
- git.kernel.org/stable/c/0d02efe7f25158c93146e3bb827bc7bb3cd5e71a
- git.kernel.org/stable/c/4a54903ff68ddb33b6463c94b4eb37fc584ef760
- git.kernel.org/stable/c/5325f50de5b1433b27dda7ccff5cb7283722a3f1
- git.kernel.org/stable/c/c177dd465f5c1e5f242cdb9258826c591c257e9a
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.4 ≤ v < 5.15.112, 5.16 ≤ v < 6.1.29, 6.2 ≤ v < 6.2.16, 6.3 ≤ v < 6.3.3 | 5.15.112, 6.1.29, 6.2.16, 6.3.3 |
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