CVE-2025-38015: Linux kernel · dmaengine: idxd: fix memory leak in error handling path of idxd_alloc
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in 868dbce755ec92855362d213f47e045a8388361a : update Linux kernel when convenient.
Data as of 5 Nov 2026, 21:04 UTC
Rated by Threat Radar · 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 868dbce755ec92855362d213f47e045a8388361a, 64afd9a1f644b27661420257dcc007d5009c99dd, 46a5cca76c76c86063000a12936f8e7875295838 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Jun 2025
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
|
| LinuxLinux | Affected
| Fixed in– |
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Memory allocated for idxd is not freed if an error occurs during idxd_alloc(). To fix it, free the allocated memory in the reverse order of allocation before exiting the function in case of an error.
References
- git.kernel.org/stable/c/64afd9a1f644b27661420257dcc007d5009c99dd (opens in a new tab)
- git.kernel.org/stable/c/6e94a2c3e4c166cd2736ac225fba5889fb1e8ac0 (opens in a new tab)
- git.kernel.org/stable/c/868dbce755ec92855362d213f47e045a8388361a (opens in a new tab)
- git.kernel.org/stable/c/4f005eb68890698e5abc6a3af04dab76f175c50c (opens in a new tab)
- git.kernel.org/stable/c/46a5cca76c76c86063000a12936f8e7875295838 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/08/msg00010.html (opens in a new tab)