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CVE-2022-50251— mmc: vub300: fix return value check of mmc_add_host()

EPSS 0.02% · P4

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinux88095e7b473a3d9ec3b9c60429576e9cbd327c89< 41ed46bdbd2878cd6567abe0974a445f8b1b8ec8affected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< 25f05d762ca5e1c685002a53dd44f68e78ca3febaffected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< a46e681151bbdacdf6b89ee8c4e5bad0555142bbaffected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< 3b29f8769d32016b2d89183db4d80c7a71b7e35eaffected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< 3049a3b927a40d89d4582ff1033cd7953be773c7affected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< afc898019e7bf18c5eb7a0ac19852fcb1b341b3caffected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< c9e85979b59cb86f0a15defa8199d740e2b36b90affected
88095e7b473a3d9ec3b9c60429576e9cbd327c89< 2044b2ea77945f372ef161d1bbf814e471767ff2affected
… +12 more rows
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I. Basic Information for CVE-2022-50251

Vulnerability Information
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Vulnerability Title
mmc: vub300: fix return value check of mmc_add_host()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: 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, the timer added before mmc_add_host() needs be del. And this patch fixes another missing call mmc_free_host() if usb_control_msg() fails.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 88095e7b473a3d9ec3b9c60429576e9cbd327c89 ~ 41ed46bdbd2878cd6567abe0974a445f8b1b8ec8 -
LinuxLinux 3.0 -

II. Public POCs for CVE-2022-50251

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III. Intelligence Information for CVE-2022-50251

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Patch · 1

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

CVE-2022-50293btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range
CVE-2023-53232mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data
CVE-2023-53233net/smc: fix deadlock triggered by cancel_delayed_work_syn()
CVE-2023-53234watchdog: Fix kmemleak in watchdog_cdev_register
CVE-2023-53235drm/tests: helpers: Avoid a driver uaf
CVE-2023-53236iommufd: Do not corrupt the pfn list when doing batch carry
CVE-2023-53237drm/amdgpu: fix amdgpu_irq_put call trace in gmc_v11_0_hw_fini
CVE-2023-53238phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()
CVE-2023-53239drm/msm/mdp5: Add check for kzalloc
CVE-2023-53240xsk: check IFF_UP earlier in Tx path
CVE-2023-53241nfsd: call op_release, even when op_func returns an error
CVE-2023-53242thermal/drivers/hisi: Drop second sensor hi3660
CVE-2022-50291kcm: annotate data-races around kcm->rx_psock
CVE-2022-50292drm/msm/dp: fix bridge lifetime
CVE-2022-50303drm/amdkfd: Fix double release compute pasid
CVE-2022-50300btrfs: fix extent map use-after-free when handling missing device in read_one_chunk
CVE-2022-50301iommu/omap: Fix buffer overflow in debugfs
CVE-2022-50302lockd: set other missing fields when unlocking files
CVE-2022-50299md: Replace snprintf with scnprintf
CVE-2022-50304mtd: core: fix possible resource leak in init_mtd()

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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