CVE-2022-50653 (GCVE-0-2022-50653)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2025-12-09 00:00
VLAI?
Title
mmc: atmel-mci: fix return value check of mmc_add_host()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2 (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 6bb26abb92f25e582a0976091a10b539fe3796db (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 00ac0f5f95920f003cd6ece53cdc759549b69118 (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 1925472dec31ec061d57412b3a65a056ea24f340 (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < cc8bb436f3c842a86b9082d97933582120d180e2 (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 85946ceb0fac20ab39cdb85333086daf0291a553 (git)
Affected: 7d2be0749a59096a334c94dc48f43294193cb8ed , < 9e6e8c43726673ca2abcaac87640b9215fd72f4c (git)
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    Linux Linux Affected: 2.6.27
Unaffected: 0 , < 2.6.27 (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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