Description
In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in testdrv_probe() The function testdrv_probe() retrieves the device_node from the PCI device, applies an overlay, and then immediately calls of_node_put(dn). This releases the reference held by the PCI core, potentially freeing the node if the reference count drops to zero. Later, the same freed pointer 'dn' is passed to of_platform_default_populate(), leading to a use-after-free. The reference to pdev->dev.of_node is owned by the device model and should not be released by the driver. Remove the erroneous of_node_put() to prevent premature freeing.
Product status
26409dd045892904b059dc411403e9c8ce7543ca (git) before 0ba03e06f037df704d9b032e36d417633e2326bc
26409dd045892904b059dc411403e9c8ce7543ca (git) before d68347b07b9801791c9eaab8f772770b52b8cd5c
26409dd045892904b059dc411403e9c8ce7543ca (git) before 5b6122a67a295f8a08b7c18d908a1bd974dfaec8
26409dd045892904b059dc411403e9c8ce7543ca (git) before 6b2023286d2c6ed3bf964fb92e34c9c14d42eb69
26409dd045892904b059dc411403e9c8ce7543ca (git) before 07fd339b2c253205794bea5d9b4b7548a4546c56
6.6
Any version before 6.6
6.6.140 (semver)
6.12.86 (semver)
6.18.27 (semver)
7.0.4 (semver)
7.1-rc1 (original_commit_for_fix)
References
git.kernel.org/...c/0ba03e06f037df704d9b032e36d417633e2326bc
git.kernel.org/...c/d68347b07b9801791c9eaab8f772770b52b8cd5c
git.kernel.org/...c/5b6122a67a295f8a08b7c18d908a1bd974dfaec8
git.kernel.org/...c/6b2023286d2c6ed3bf964fb92e34c9c14d42eb69
git.kernel.org/...c/07fd339b2c253205794bea5d9b4b7548a4546c56