CVE-2026-31439: Linux kernel · dmaengine: xilinx: xdma: Fix regmap init error handling
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 03:47 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation 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 11 Nov 2026.
What to do
AI-suggested
A fix has been applied in the Linux kernel to correct the error handling logic in the dmaengine xilinx xdma driver. Users should update to the fixed kernel version once available. No additional mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's dmaengine xilinx xdma driver related to improper error handling during regmap initialization has been fixed. The function devm_regmap_init_mmio returns an ERR_PTR() on error, but the code incorrectly checked for NULL and mishandled the error code. This flaw has been corrected to properly check and handle the error pointer and message.
References
- git.kernel.org/stable/c/4b6e1da50b22e5528b9003f376a3cecccce4decc (opens in a new tab)
- git.kernel.org/stable/c/9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a (opens in a new tab)
- git.kernel.org/stable/c/f27197ccfd2ecd2c71f27fd57c6d507e892ad24d (opens in a new tab)
- git.kernel.org/stable/c/59f6ccd0f3345be2e8a78bdef2103e93f180633a (opens in a new tab)
- git.kernel.org/stable/c/e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8 (opens in a new tab)