CVE-2026-31520: Linux kernel · HID: apple: avoid memory leak in apple_report_fixup()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e652ebd29928181c3e6820e303da25873e9917d4 : update Linux kernel when convenient.
Data as of 5 Nov 2026, 22:17 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-05.
- Patch
- Available – fixed in e652ebd29928181c3e6820e303da25873e9917d4, e2f090aeb7b9930a964e151910f4d45b04c8a7e5, be1a341c161430282acdfe2ac99b413271575cf1 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
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 5 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel source code after version 5.17. Users and administrators should update to a fixed kernel version that includes the relevant commits to resolve this memory leak.
Description
A memory leak vulnerability was identified and fixed in the Linux kernel's apple_report_fixup() function. The function was allocating memory with kmemdup() but not freeing it, leading to a leak. The caller does not take ownership of the allocated buffer, which caused the issue. This flaw affects Linux kernel version 5.17.
References
- git.kernel.org/stable/c/e2f090aeb7b9930a964e151910f4d45b04c8a7e5 (opens in a new tab)
- git.kernel.org/stable/c/2635d0c715f3fb177e0f80ecd5fa48feb6bf3884 (opens in a new tab)
- git.kernel.org/stable/c/31860c3f7ac66ab897a8c90dc4e74fa17ca0b624 (opens in a new tab)
- git.kernel.org/stable/c/be1a341c161430282acdfe2ac99b413271575cf1 (opens in a new tab)
- git.kernel.org/stable/c/e652ebd29928181c3e6820e303da25873e9917d4 (opens in a new tab)
- git.kernel.org/stable/c/239c15116d80f67d32f00acc34575f1a6b699613 (opens in a new tab)