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CVE-2022-50268— mmc: moxart: fix return value check of mmc_add_host()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查mmc_add_host返回值，可能导致内存泄漏和内核崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 1b66e94e6b9995323190f31c51d8e1a6f516627e< a4c765f5d8e58138cff69f1510b2e8942ec37022 affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< a94d466f31a5201995d39bc1208e2c09ab04f0bf affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< c7e9a2059fb943fc3c3fa12261518fd72a0fc136 affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< b174f2b36c638fc7737df6c8aac1889a646be98f affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< 7c3b301ca8b0cab392c71da8fcdfa499074f8e97 affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< f0502fe86a2db2336c9498d2de3e97f22dcf85ae affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< 8f8bb62c7c5c833758ef1563fe738afd579c3efe affected
1b66e94e6b9995323190f31c51d8e1a6f516627e< 40aa73c70e8a5706f9cbe01409a5e51cc0f1750e affected
… +12 more rows
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I. Basic Information for CVE-2022-50268

Vulnerability Information
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Vulnerability Title
mmc: moxart: fix return value check of mmc_add_host()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mmc: moxart: 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().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查mmc_add_host返回值，可能导致内存泄漏和内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1b66e94e6b9995323190f31c51d8e1a6f516627e ~ a4c765f5d8e58138cff69f1510b2e8942ec37022 -
Linux Linux 3.16 -

II. Public POCs for CVE-2022-50268

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III. Intelligence Information for CVE-2022-50268

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Same Patch Batch · Linux · 2025-09-15 · 210 CVEs total

CVE-2022-50235 9.8 CRITICAL NFSD: Protect against send buffer overflow in NFSv2 READDIR
CVE-2022-50335 9.8 CRITICAL 9p: set req refcount to zero to avoid uninitialized usage
CVE-2023-53192 9.8 CRITICAL vxlan: Fix nexthop hash size
CVE-2023-53253 8.8 HIGH HID: nvidia-shield: Reference hid_device devm allocation of input_dev name
CVE-2023-53226 8.8 HIGH wifi: mwifiex: Fix OOB and integer underflow when rx packets
CVE-2022-50241 8.8 HIGH NFSD: fix use-after-free on source server when doing inter-server copy
CVE-2023-53194 8.4 HIGH fs/ntfs3: Add length check in indx_get_root
CVE-2023-53213 8.1 HIGH wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
CVE-2023-53186 8.1 HIGH skbuff: Fix a race between coalescing and releasing SKBs
CVE-2022-50310 7.8 HIGH ip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed
CVE-2023-53254 7.8 HIGH cacheinfo: Fix shared_cpu_map to handle shared caches at different levels
CVE-2023-53252 7.8 HIGH Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
CVE-2023-53170 7.8 HIGH net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
CVE-2023-53176 7.8 HIGH serial: 8250: Reinit port->pm on port specific driver unbind
CVE-2023-53178 7.8 HIGH mm: fix zswap writeback race condition
CVE-2023-53179 7.8 HIGH netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
CVE-2023-53184 7.8 HIGH arm64/sme: Set new vector length before reallocating
CVE-2022-50315 7.8 HIGH ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS
CVE-2023-53187 7.8 HIGH btrfs: fix use-after-free of new block group that became unused
CVE-2025-39800 7.8 HIGH btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()

Showing top 20 of 210 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50268

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