CVE-2026-64462

PCI: altera: Fix resource leaks on probe failure

N/A
Published: July 25, 2026 at 08:51 AM UTC
Updated: August 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.9 ≤ v < 5.10.2615.9 ≤ v < 5.15.2125.9 ≤ v < 6.1.1785.9 ≤ v < 6.12.975.9 ≤ v < 6.18.395.9 ≤ v < 6.6.1455.9 ≤ v < 7.1.45.9 ≤ v < 7.25.9c63aed7334c21de8d626ff028ccad98cf5847a0e
Vendor states this is fixed in 09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9 (fixed)
Vendor states this is fixed in 0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a (fixed)
Vendor states this is fixed in 6864c789b570e57f932847fa83f6b56917182d73 (fixed)
Vendor states this is fixed in 7a94138caeb27f3c49c1dbd93bf422098925bb28 (fixed)
Vendor states this is fixed in 99fc088d6cc6890ae35fa2f29c50ebe027844c20 (fixed)
Vendor states this is fixed in 9cf0cc481e1645ec65e61486ae41c486c59781cb (fixed)
Vendor states this is fixed in a25bfa2a6665a1d77324d4a609e7513b87680227 (fixed)
Vendor states this is fixed in af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7 (fixed)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.39 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.4 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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