What’s Vulnerable › Vulnerabilities

CVE-2026-80732: ata: pata_sl82c105: fix bridge revision use-after-free

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-09-04

Description

In the Linux kernel, the following vulnerability has been resolved: ata: pata_sl82c105: fix bridge revision use-after-free pci_get_slot() returns a referenced PCI device. Commit 44c10138fd4b ("PCI: Change all drivers to use pci_device->revision") replaced a configuration-space read with direct access to the cached revision field, but left that access after pci_dev_put(). The bridge may therefore be freed before its revision is read. Read the revision before dropping the reference.

Affected products

• Linux kernel: 2.6.23 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1268ca9418e2217f2b60705cf4a280b689b26678
• https://git.kernel.org/stable/c/56fd78c8c820f527f8003e379ab71004b2e79a44
• https://git.kernel.org/stable/c/5ef87b1b4656d675440ceab32a56e69ad958d3a1
• https://git.kernel.org/stable/c/7700a31039cdc6715cb6cce7e7a664ee4e945f67
• https://git.kernel.org/stable/c/a626dfca96041842053cf2d1efceb436c4cd8dcf
• https://git.kernel.org/stable/c/a837deeaa37cc3f0e8c4e5c096787047f272c956
• https://git.kernel.org/stable/c/dc711fb137b33c12e6ca22b6a9c9b9f21d49e4de
• https://git.kernel.org/stable/c/fa0dca89b4fb0909ffda7b9ab6051af33270f95e

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