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CVE-2022-50347

mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected c7f6558d84afe60016b8103c0737df6e376a1c2d before d7ad7278be401b09c9f9a9f522cf4c449c7fd489; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before e598c9683fe1cf97c2b11b800cc3cee072108220; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before 89303ddbb502c3bc8edbf864f9f85500c8fe07e9; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before 937112e991ed25d1727d878734adcbef3b900274; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before 7fa922c7a3dd623fd59f1af50e8896fd9ca7f654; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before df683201c7ffbd21a806a7cad657b661c5ebfb6f; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before 1491667d5450778a265eddddd294219acfd648cb; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before a522e26a20a43dcfbef9ee9f71ed803290e852b0; affected c7f6558d84afe60016b8103c0737df6e376a1c2d before fc38a5a10e9e5a75eb9189854abeb8405b214cc9
Linux / Linuxaffected 3.16; unaffected 0 before 3.16; unaffected 4.9.337 through 4.9.*; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.