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CVE-2022-50192

spi: tegra20-slink: fix UAF in tegra_slink_remove() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: fix UAF in tegra_slink_remove() After calling spi_unregister_master(), the refcount of master will be decrease to 0, and it will be freed in spi_controller_release(), the device data also will be freed, so it will lead a UAF when using 'tspi'. To fix this, get the master before unregister and put it when finish using it.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 26c863418221344b1cfb8e6c11116b2b81144281 before 415b4ce61308f24583912d887772dfcbf97f1d20; affected 26c863418221344b1cfb8e6c11116b2b81144281 before 800c7767e05d29656713e04532823a752e57e037; affected 26c863418221344b1cfb8e6c11116b2b81144281 before 67f77172644260482fdafc03b6025847944701e5; affected 26c863418221344b1cfb8e6c11116b2b81144281 before 7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 5.15.61 through 5.15.*; unaffected 5.18.18 through 5.18.*; unaffected 5.19.2 through 5.19.*; unaffected 6.0 through *

CWE

No CWE identifiers supplied.

References