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CVE-2022-50244— cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()

EPSS 0.02% · P4

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinuxf204e0b8cedd7da1dfcfd05ed6b7692737e24029< 82e68432668ae75b4c814d160f6987ecb0681273affected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 82e5481428faf11c79b9c094dd24a1849bbf64acaffected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< c4b2e35df919d99bbbed033c2fa0b607f9f463b5affected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 361412dae1690d4b5df6f92fc943cdc773c95cbcaffected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdecaffected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 22511eefa61db26e12c97dd7ada3071dbdfcb004affected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 139abd4c626a6f7ce02789ed5f73aa2256e0542baffected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029< 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339affected
… +12 more rows
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I. Basic Information for CVE-2022-50244

Vulnerability Information
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Vulnerability Title
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_register() fails in cxl_pci_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register 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，该漏洞源于未正确处理设备注册失败情况，可能导致空指针取消引用。
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 f204e0b8cedd7da1dfcfd05ed6b7692737e24029 ~ 82e68432668ae75b4c814d160f6987ecb0681273 -
LinuxLinux 3.18 -

II. Public POCs for CVE-2022-50244

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III. Intelligence Information for CVE-2022-50244

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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

V. Comments for CVE-2022-50244

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