CVE-2023-28577: Multiple Dmabuf Kernel Address UAF Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-08 · updated 2026-06-17
Weakness: CWE-416

Description

In the function call related to CAM_REQ_MGR_RELEASE_BUF there is no check if the buffer is being used. So when a function called cam_mem_get_cpu_buf to get the kernel va to use, another thread can call CAM_REQ_MGR_RELEASE_BUF to unmap the kernel va which cause UAF of the kernel address.

Affected products

Qualcomm Fastconnect 6800 Firmware: all versions
Qualcomm Fastconnect 6900 Firmware: all versions
Qualcomm Fastconnect 7800 Firmware: all versions
Qualcomm Qca6391 Firmware: all versions
Qualcomm Qca6426 Firmware: all versions
Qualcomm Qca6436 Firmware: all versions
Qualcomm Qcn9074 Firmware: all versions
Qualcomm Qcs410 Firmware: all versions
Qualcomm Qcs610 Firmware: all versions
Qualcomm Sd865 5G Firmware: all versions
Qualcomm Snapdragon 865+ 5G Firmware: all versions
Qualcomm Snapdragon 865 5G Firmware: all versions
Qualcomm Snapdragon 870 5G Firmware: all versions
Qualcomm Snapdragon 8 Gen 1 Firmware: all versions
Qualcomm Snapdragon X55 5G Firmware: all versions
Qualcomm Snapdragon Xr2 5G Firmware: all versions
Qualcomm Sw5100 Firmware: all versions
Qualcomm Sw5100P Firmware: all versions
Qualcomm Sxr2130 Firmware: all versions
Qualcomm Wcd9341 Firmware: all versions
Qualcomm Wcd9370 Firmware: all versions
Qualcomm Wcd9380 Firmware: all versions
Qualcomm Wcn3660B Firmware: all versions
Qualcomm Wcn3680B Firmware: all versions
Qualcomm Wcn3950 Firmware: all versions
Qualcomm Wcn3980 Firmware: all versions
Qualcomm Wcn3988 Firmware: all versions
Qualcomm Wsa8810 Firmware: all versions
Qualcomm Wsa8815 Firmware: all versions
Qualcomm Wsa8830 Firmware: all versions

References

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