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CVE-2022-50672— mailbox: zynq-ipi: fix error handling while device_register() fails

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device_register返回值，可能导致内存泄漏和空指针取消引用。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 4981b82ba2ff87df6a711fcd7a233c615df5fc79< b3a5c76f61e2b380e29dfc6705854ca1ee85501d affected
4981b82ba2ff87df6a711fcd7a233c615df5fc79< a39b4de0804f9fe0ae911b359ffd4afe7d9d933b affected
4981b82ba2ff87df6a711fcd7a233c615df5fc79< 4f05d8e2fb3ab702c2633a74571e1b31cb579985 affected
4981b82ba2ff87df6a711fcd7a233c615df5fc79< f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a affected
4981b82ba2ff87df6a711fcd7a233c615df5fc79< 3fcf079958c00d83c51e4f250abf2c77fe9cc1b9 affected
4981b82ba2ff87df6a711fcd7a233c615df5fc79< a6792a0cdef0b1c2d77920246283a72537e60e94 affected
5.1 affected
< 5.1 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-50672

Vulnerability Information
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Vulnerability Title
mailbox: zynq-ipi: fix error handling while device_register() fails
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register() fails, it has two issues: 1. The name allocated by dev_set_name() is leaked. 2. The parent of device is not NULL, device_unregister() is called in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because of removing not added device. Call put_device() to give up the reference, so the name is freed in kobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes() to avoid null-ptr-deref.
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device_register返回值，可能导致内存泄漏和空指针取消引用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 4981b82ba2ff87df6a711fcd7a233c615df5fc79 ~ b3a5c76f61e2b380e29dfc6705854ca1ee85501d -
Linux Linux 5.1 -

II. Public POCs for CVE-2022-50672

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III. Intelligence Information for CVE-2022-50672

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Same Patch Batch · Linux · 2025-12-09 · 152 CVEs total

CVE-2025-40343 9.8 CRITICAL nvmet-fc: avoid scheduling association deletion twice
CVE-2023-53794 9.8 CRITICAL cifs: fix session state check in reconnect to avoid use-after-free issue
CVE-2022-50666 9.8 CRITICAL RDMA/siw: Fix QP destroy to wait for all references dropped.
CVE-2023-53827 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}
CVE-2023-53785 8.8 HIGH mt76: mt7921: don't assume adequate headroom for SDIO headers
CVE-2023-53822 8.8 HIGH wifi: ath11k: Ignore frags from uninitialized peer in dp.
CVE-2025-40336 8.8 HIGH drm/gpusvm: fix hmm_pfn_to_map_order() usage
CVE-2025-40342 8.8 HIGH nvme-fc: use lock accessing port_state and rport state
CVE-2025-40328 8.8 HIGH smb: client: fix potential UAF in smb2_close_cached_fid()
CVE-2023-53851 8.4 HIGH drm/msm/dp: Drop aux devices together with DP controller
CVE-2025-40337 8.2 HIGH net: stmmac: Correctly handle Rx checksum offload errors
CVE-2022-50656 8.1 HIGH nfc: pn533: Clear nfc_target before being used
CVE-2023-53803 8.1 HIGH scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process()
CVE-2023-53804 7.8 HIGH nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
CVE-2023-53819 7.8 HIGH amdgpu: validate offset_in_bo of drm_amdgpu_gem_va
CVE-2023-53816 7.8 HIGH drm/amdkfd: fix potential kgd_mem UAFs
CVE-2023-53800 7.8 HIGH ubi: Fix use-after-free when volume resizing failed
CVE-2023-53790 7.8 HIGH bpf: Zeroing allocated object from slab in bpf memory allocator
CVE-2023-53795 7.8 HIGH iommufd: IOMMUFD_DESTROY should not increase the refcount
CVE-2023-53810 7.8 HIGH blk-mq: release crypto keyslot before reporting I/O complete

Showing top 20 of 152 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50672

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