Riskcovery

CVE-2022-50886

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

State
Published
Severity
Not scored
Published
Dec 30, 2025
Updated
May 11, 2026
Reserved
Dec 30, 2025

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 34ae492f8d172f0bd193c24cad588b35419ea47aAffected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 3329e7b7132ca727263fb0ee214cf52cc6dcaaadAffected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ffAffected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0Affected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before aabbedcb6c9a72d12d35dc672e83f0c8064d8a61Affected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 6444079767b68b1fbed0e7668081146e80dcb719Affected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before 647e370dd0ef7e212d8d014bda748e461eab2e8cAffected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before bfd77b194c94aefbde4efc30ddf8607dd9244672Affected
  • a5eb8bbd66ccf9f169419f9652544aec771b7c57 to before f670744a316ea983113a65313dcd387b5a992444Affected
LinuxLinux
  • 3.19Affected
  • before 3.19Not affected
  • 4.9.337 through 4.9.*Not affected
  • 4.14.303 through 4.14.*Not affected
  • 4.19.270 through 4.19.*Not affected
  • 5.4.229 through 5.4.*Not affected
  • 5.10.163 through 5.10.*Not affected
  • 5.15.86 through 5.15.*Not affected
  • 6.0.16 through 6.0.*Not affected
  • 6.1.2 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.