CVE-2026-64462: Linux kernel · PCI: altera: Fix resource leaks on probe failure
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 3 Nov 2026, 18:29 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 25 Jul 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 3 Nov 2026.
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: altera: Fix resource leaks on probe failure The chained IRQ handler is set during probe, but is only removed during the driver remove(). If pci_host_probe() fails, the handler and INTx IRQ domain remain set even though the devm-managed host bridge storage containing struct altera_pcie will be released, leaving the handler with a stale data pointer. Interrupts are also enabled before pci_host_probe() is called. If probe fails after that point, the controller interrupt source should be disabled before the chained handler and INTx domain are removed. So set the chained handler only after the INTx domain has been created. Disable controller interrupts during IRQ teardown, and tear the IRQ setup down if pci_host_probe() fails. [mani: commit log]
References
- git.kernel.org/stable/c/af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7 (opens in a new tab)
- git.kernel.org/stable/c/9cf0cc481e1645ec65e61486ae41c486c59781cb (opens in a new tab)
- git.kernel.org/stable/c/99fc088d6cc6890ae35fa2f29c50ebe027844c20 (opens in a new tab)
- git.kernel.org/stable/c/a25bfa2a6665a1d77324d4a609e7513b87680227 (opens in a new tab)
- git.kernel.org/stable/c/0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a (opens in a new tab)
- git.kernel.org/stable/c/09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9 (opens in a new tab)
- git.kernel.org/stable/c/6864c789b570e57f932847fa83f6b56917182d73 (opens in a new tab)
- git.kernel.org/stable/c/7a94138caeb27f3c49c1dbd93bf422098925bb28 (opens in a new tab)