CVE-2022-50618
Status: DeferredUnscored—
In the Linux kernel, the following vulnerability has been resolved:
mmc: meson-gx: 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().
Fix this by checking the return value and goto error path which will call mmc_free_host().
CVSS
NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.21%
- Percentile among all scored CVEs: 10
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
References
- https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9
- https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb
- https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e
- https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d
- https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f
- https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e
- https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10
Raw JSON (NVD)
Show
{
"id": "CVE-2022-50618",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "f5506e0bbb25102bd8ef2e1a3b483a0b934e454e",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "9e11c6bb745be4e9b325cf96031b4ea34801342d",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "64b2c441171febf075bd9632aca579afda8ab9fb",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "e0cfe7aa41f3965f5224affd88afd48c60f6ad1f",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "42343e3c6195e934b9cb4c08b7ff84a3778d77f9",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "f5ce76aeddf01ca8f2a80fc37119388d59db7c10",
"versionType": "git"
},
{
"status": "affected",
"version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
"lessThan": "90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e",
"versionType": "git"
}
],
"programFiles": [
"drivers/mmc/host/meson-gx-mmc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.270",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.229",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.163",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.86",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.0.16",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"status": "unaffected",
"version": "6.1.2",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/mmc/host/meson-gx-mmc.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-08T02:15:47.590",
"references": [
{
"url": "https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: meson-gx: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\nit will lead two issues:\n1. The memory that allocated in mmc_alloc_host() is leaked.\n2. In the remove() path, mmc_remove_host() will be called to\n delete device, but it's not added yet, it will lead a kernel\n crash because of null-ptr-deref in device_del().\n\nFix this by checking the return value and goto error path which\nwill call mmc_free_host()."
}
],
"lastModified": "2026-06-17T05:23:52.630",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}