CVE-2022-48723

Summary

In the Linux kernel, the following vulnerability has been resolved:

spi: uniphier: fix reference count leak in uniphier_spi_probe()

The issue happens in several error paths in uniphier_spi_probe(). When either dma_get_slave_caps() or devm_spi_register_master() returns an error code, the function forgets to decrease the refcount of both dma_rx and dma_tx objects, which may lead to refcount leaks.

Fix it by decrementing the reference count of specific objects in those error paths.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux28d1dddc59f6b7fc085093e7c1e978b33f0caf4c < e895e067d73e154b1ebc84a124e00831e311d9b0affected
LinuxLinux28d1dddc59f6b7fc085093e7c1e978b33f0caf4c < dd00b4f8f768d81c3788a8ac88fdb3d745e55ea3affected
LinuxLinux28d1dddc59f6b7fc085093e7c1e978b33f0caf4c < 447c3d4046d7b54052d07d8b27e15e6edea5662caffected
LinuxLinux28d1dddc59f6b7fc085093e7c1e978b33f0caf4c < 37c2c83ca4f1ef4b6908181ac98e18360af89b42affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.10.99 <= 5.10.*unaffected
LinuxLinux5.15.22 <= 5.15.*unaffected
LinuxLinux5.16.8 <= 5.16.*unaffected
LinuxLinux5.17 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References