CVE-2023-53470

MEDIUM EPSS 4.2%
Published Oct 1, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 1, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.4  –  <5.15.112
linuxlinux_kernel*≥5.16  –  <6.1.29
linuxlinux_kernel*≥6.2  –  <6.2.16
linuxlinux_kernel*≥6.3  –  <6.3.3

References 5

  • git.kernel.org https://git.kernel.org/stable/c/0020c16c8af7f4bc9503a2088fb30793b6771fac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0d02efe7f25158c93146e3bb827bc7bb3cd5e71a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4a54903ff68ddb33b6463c94b4eb37fc584ef760
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5325f50de5b1433b27dda7ccff5cb7283722a3f1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c177dd465f5c1e5f242cdb9258826c591c257e9a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0020c16c8af7f4bc9503a2088fb30793b6771fac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0d02efe7f25158c93146e3bb827bc7bb3cd5e71a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4a54903ff68ddb33b6463c94b4eb37fc584ef760
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5325f50de5b1433b27dda7ccff5cb7283722a3f1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c177dd465f5c1e5f242cdb9258826c591c257e9a
    Patch