CVE-2022-50653

mmc: atmel-mci: fix return value check of mmc_add_host()

State: Published
Severity: Not scored
Published: Dec 9, 2025
Updated: May 11, 2026
Reserved: Dec 8, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

mmc: atmel-mci: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del().

So fix this by checking the return value and calling mmc_free_host() in the error path.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7d2be0749a59096a334c94dc48f43294193cb8ed to before 99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2Affected 7d2be0749a59096a334c94dc48f43294193cb8ed to before 6bb26abb92f25e582a0976091a10b539fe3796dbAffected 7d2be0749a59096a334c94dc48f43294193cb8ed to before 00ac0f5f95920f003cd6ece53cdc759549b69118Affected 7d2be0749a59096a334c94dc48f43294193cb8ed to before 1925472dec31ec061d57412b3a65a056ea24f340Affected 7d2be0749a59096a334c94dc48f43294193cb8ed to before cc8bb436f3c842a86b9082d97933582120d180e2Affected 7d2be0749a59096a334c94dc48f43294193cb8ed to before 85946ceb0fac20ab39cdb85333086daf0291a553Affected 7d2be0749a59096a334c94dc48f43294193cb8ed to before 9e6e8c43726673ca2abcaac87640b9215fd72f4cAffected
LinuxLinux	2.6.27Affected before 2.6.27Not 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

Product

Versions

LinuxLinux

7d2be0749a59096a334c94dc48f43294193cb8ed to before 99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2Affected
7d2be0749a59096a334c94dc48f43294193cb8ed to before 6bb26abb92f25e582a0976091a10b539fe3796dbAffected
7d2be0749a59096a334c94dc48f43294193cb8ed to before 00ac0f5f95920f003cd6ece53cdc759549b69118Affected
7d2be0749a59096a334c94dc48f43294193cb8ed to before 1925472dec31ec061d57412b3a65a056ea24f340Affected
7d2be0749a59096a334c94dc48f43294193cb8ed to before cc8bb436f3c842a86b9082d97933582120d180e2Affected
7d2be0749a59096a334c94dc48f43294193cb8ed to before 85946ceb0fac20ab39cdb85333086daf0291a553Affected
7d2be0749a59096a334c94dc48f43294193cb8ed to before 9e6e8c43726673ca2abcaac87640b9215fd72f4cAffected

LinuxLinux

2.6.27Affected
before 2.6.27Not 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

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