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CVE-2022-50251

mmc: vub300: fix return value check of mmc_add_host() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: 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 goto error path which will call mmc_free_host(), besides, the timer added before mmc_add_host() needs be del. And this patch fixes another missing call mmc_free_host() if usb_control_msg() fails.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 41ed46bdbd2878cd6567abe0974a445f8b1b8ec8; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 25f05d762ca5e1c685002a53dd44f68e78ca3feb; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before a46e681151bbdacdf6b89ee8c4e5bad0555142bb; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 3b29f8769d32016b2d89183db4d80c7a71b7e35e; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 3049a3b927a40d89d4582ff1033cd7953be773c7; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before afc898019e7bf18c5eb7a0ac19852fcb1b341b3c; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before c9e85979b59cb86f0a15defa8199d740e2b36b90; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 2044b2ea77945f372ef161d1bbf814e471767ff2; affected 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 0613ad2401f88bdeae5594c30afe318e93b14676
Linux / Linuxaffected 3.0; unaffected 0 before 3.0; 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