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CVE-2022-50886

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

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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, free_irq() also needs be called.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 34ae492f8d172f0bd193c24cad588b35419ea47a; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 3329e7b7132ca727263fb0ee214cf52cc6dcaaad; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before aabbedcb6c9a72d12d35dc672e83f0c8064d8a61; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 6444079767b68b1fbed0e7668081146e80dcb719; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before 647e370dd0ef7e212d8d014bda748e461eab2e8c; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before bfd77b194c94aefbde4efc30ddf8607dd9244672; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 before f670744a316ea983113a65313dcd387b5a992444
Linux / Linuxaffected 3.19; unaffected 0 before 3.19; 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