CVE-2024-27047: Linux kernel · net: phy: fix phy_get_internal_delay accessing an empty array
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 5.15.0-1063.69~20.04.1 : update Linux kernel when convenient.
Data as of 12 Nov 2026, 18:52 UTC
- Patch
- Available – fixed in 5.15.0-1063.69~20.04.1, 5.15.0-1065.74~20.04.1, 5.15.0-1062.70~20.04.1 +42
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-6816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6820-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6828-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6820-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6871-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied. Fixed kernel versions include 5.15.0-1063.69~20.04.1 and later. Users should update to these or later versions to remediate the vulnerability. No additional mitigations are indicated by the vendor advisory.
Description
CVE-2024-27047 is a vulnerability in the Linux kernel's phy_get_internal_delay function where it may access an empty array, leading to a kernel NULL pointer dereference and resulting in a kernel oops. This occurs if the driver calls phy_get_internal_delay without defining delay_values and if rx-internal-delay-ps or tx-internal-delay-ps is set to 0 in the device tree. The issue has been fixed by adding a check for an empty array to prevent the invalid memory access.
References
- ubuntu.com/security/CVE-2024-27047 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-27047 (opens in a new tab)
- git.kernel.org/linus/4469c0c5b14a0919f5965c7ceac96b523eb57b79 (opens in a new tab)
- git.kernel.org/stable/c/06dd21045a7e8bc8701b0ebedcd9a30a6325878b (opens in a new tab)
- git.kernel.org/stable/c/0e939a002c8a7d66e60bd0ea6b281fb39d713c1a (opens in a new tab)
- git.kernel.org/stable/c/2a2ff709511617de9c6c072eeee82bcbbdfecaf8 (opens in a new tab)
- git.kernel.org/stable/c/589ec16174dd9378953b8232ae76fad0a96e1563 (opens in a new tab)
- git.kernel.org/stable/c/c0691de7df1d51482a52cac93b7fe82fd9dd296b (opens in a new tab)
- git.kernel.org/stable/c/0307cf443308ecc6be9b2ca312bb31bae5e5a7ad (opens in a new tab)
- git.kernel.org/stable/c/4469c0c5b14a0919f5965c7ceac96b523eb57b79 (opens in a new tab)
- ubuntu.com/security/notices/USN-6816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6820-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6828-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6820-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6821-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-3 (opens in a new tab)