Description
In the Linux kernel, the following vulnerability has been resolved: ocxl: fix pci device refcount leak when calling get_function_0() get_function_0() calls pci_get_domain_bus_and_slot(), as comment says, it returns a pci device with refcount increment, so after using it, pci_dev_put() needs be called. Get the device reference when get_function_0() is not called, so pci_dev_put() can be called in the error path and callers unconditionally. And add comment above get_dvsec_vendor0() to tell callers to call pci_dev_put().
Product status
87db7579ebd5ded337056eb765542eb2608f16e3 (git) before a40e1b0a922a53fa925ea8b296e3de30a31ed028
87db7579ebd5ded337056eb765542eb2608f16e3 (git) before 37a13b274e4513c757e50c002ddcbf4bc89adbb2
87db7579ebd5ded337056eb765542eb2608f16e3 (git) before 9a1b3148975b71fdc194e62612478346bbe618cd
87db7579ebd5ded337056eb765542eb2608f16e3 (git) before 40ff4c2335a98f0ee96b099bfd70b8e6644f321f
87db7579ebd5ded337056eb765542eb2608f16e3 (git) before 27158c72678b39ee01cc01de1aba6b51c71abe2f
5.9
Any version before 5.9
5.10.163 (semver)
5.15.86 (semver)
6.0.16 (semver)
6.1.2 (semver)
6.2 (original_commit_for_fix)
References
git.kernel.org/...c/a40e1b0a922a53fa925ea8b296e3de30a31ed028
git.kernel.org/...c/37a13b274e4513c757e50c002ddcbf4bc89adbb2
git.kernel.org/...c/9a1b3148975b71fdc194e62612478346bbe618cd
git.kernel.org/...c/40ff4c2335a98f0ee96b099bfd70b8e6644f321f
git.kernel.org/...c/27158c72678b39ee01cc01de1aba6b51c71abe2f
