CVE-2026-64462
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
25/07/2026
Última modificación:
25/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
PCI: altera: Fix resource leaks on probe failure<br />
<br />
The chained IRQ handler is set during probe, but is only removed during the<br />
driver remove(). If pci_host_probe() fails, the handler and INTx IRQ<br />
domain remain set even though the devm-managed host bridge storage<br />
containing struct altera_pcie will be released, leaving the handler with<br />
a stale data pointer.<br />
<br />
Interrupts are also enabled before pci_host_probe() is called. If probe<br />
fails after that point, the controller interrupt source should be disabled<br />
before the chained handler and INTx domain are removed.<br />
<br />
So set the chained handler only after the INTx domain has been created.<br />
Disable controller interrupts during IRQ teardown, and tear the IRQ setup<br />
down if pci_host_probe() fails.<br />
<br />
[mani: commit log]
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9
- https://git.kernel.org/stable/c/0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a
- https://git.kernel.org/stable/c/6864c789b570e57f932847fa83f6b56917182d73
- https://git.kernel.org/stable/c/7a94138caeb27f3c49c1dbd93bf422098925bb28
- https://git.kernel.org/stable/c/99fc088d6cc6890ae35fa2f29c50ebe027844c20
- https://git.kernel.org/stable/c/9cf0cc481e1645ec65e61486ae41c486c59781cb
- https://git.kernel.org/stable/c/a25bfa2a6665a1d77324d4a609e7513b87680227
- https://git.kernel.org/stable/c/af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7



