ata: pata_sl82c105: fix bridge revision use-after-free
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1268ca9418e2217f2b60705cf4a280b689b26678https://git.kernel.org/stable/c/56fd78c8c820f527f8003e379ab71004b2e79a44https://git.kernel.org/stable/c/5ef87b1b4656d675440ceab32a56e69ad958d3a1https://git.kernel.org/stable/c/7700a31039cdc6715cb6cce7e7a664ee4e945f67https://git.kernel.org/stable/c/a626dfca96041842053cf2d1efceb436c4cd8dcfhttps://git.kernel.org/stable/c/a837deeaa37cc3f0e8c4e5c096787047f272c956https://git.kernel.org/stable/c/dc711fb137b33c12e6ca22b6a9c9b9f21d49e4dehttps://git.kernel.org/stable/c/fa0dca89b4fb0909ffda7b9ab6051af33270f95e