CVE-2022-50337
N/A
N/A
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 87db7579ebd5ded337056eb765542eb2608f16e3 < a40e1b0a922a53fa925ea8b296e3de30a31ed028 | affected |
| Linux | Linux | 87db7579ebd5ded337056eb765542eb2608f16e3 < 37a13b274e4513c757e50c002ddcbf4bc89adbb2 | affected |
| Linux | Linux | 87db7579ebd5ded337056eb765542eb2608f16e3 < 9a1b3148975b71fdc194e62612478346bbe618cd | affected |
| Linux | Linux | 87db7579ebd5ded337056eb765542eb2608f16e3 < 40ff4c2335a98f0ee96b099bfd70b8e6644f321f | affected |
| Linux | Linux | 87db7579ebd5ded337056eb765542eb2608f16e3 < 27158c72678b39ee01cc01de1aba6b51c71abe2f | affected |
| Linux | Linux | 5.9 | affected |
| Linux | Linux | 0 < 5.9 | unaffected |
| Linux | Linux | 5.10.163 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a40e1b0a922a53fa925ea8b296e3de30a31ed028
- https://git.kernel.org/stable/c/37a13b274e4513c757e50c002ddcbf4bc89adbb2
- https://git.kernel.org/stable/c/9a1b3148975b71fdc194e62612478346bbe618cd
- https://git.kernel.org/stable/c/40ff4c2335a98f0ee96b099bfd70b8e6644f321f
- https://git.kernel.org/stable/c/27158c72678b39ee01cc01de1aba6b51c71abe2f
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