CVE-2022-49429

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Prevent panic when SDMA is disabled If the hfi1 module is loaded with HFI1_CAP_SDMA off, a call to hfi1_write_iter() will dereference a NULL pointer and panic. A typical stack frame is: sdma_select_user_engine [hfi1] hfi1_user_sdma_process_request [hfi1] hfi1_write_iter [hfi1] do_iter_readv_writev do_iter_write vfs_writev do_writev do_syscall_64 The fix is to test for SDMA in hfi1_write_iter() and fail the I/O with EINVAL.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86f	Patch
https://git.kernel.org/stable/c/22e7e400fd1a890db2ea13686324aff50e972f4f	Patch
https://git.kernel.org/stable/c/29952ab85d6c3fe0b7909d9a737f10c58bf6824d	Patch
https://git.kernel.org/stable/c/32e6aea33944f364d51cd263e4cd236393a188b6	Patch
https://git.kernel.org/stable/c/33794e8e9bcb4affc0ebff9cdec85acc8b8a1762	Patch
https://git.kernel.org/stable/c/629e052d0c98e46dde9f0824f0aa437f678d9b8f	Patch
https://git.kernel.org/stable/c/cc80d3c37cec9d6ddb140483647901bc7cc6c31d	Patch
https://git.kernel.org/stable/c/e60ad83f645ee6fadd5a8057ba267aeec54f08fe	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2025-10-22 17:27

NVD link : CVE-2022-49429

Mitre link : CVE-2022-49429

CVE.ORG link : CVE-2022-49429

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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