CVE-2022-50337

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux87db7579ebd5ded337056eb765542eb2608f16e3 < a40e1b0a922a53fa925ea8b296e3de30a31ed028affected
LinuxLinux87db7579ebd5ded337056eb765542eb2608f16e3 < 37a13b274e4513c757e50c002ddcbf4bc89adbb2affected
LinuxLinux87db7579ebd5ded337056eb765542eb2608f16e3 < 9a1b3148975b71fdc194e62612478346bbe618cdaffected
LinuxLinux87db7579ebd5ded337056eb765542eb2608f16e3 < 40ff4c2335a98f0ee96b099bfd70b8e6644f321faffected
LinuxLinux87db7579ebd5ded337056eb765542eb2608f16e3 < 27158c72678b39ee01cc01de1aba6b51c71abe2faffected
LinuxLinux5.9affected
LinuxLinux0 < 5.9unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References