VYPR
Unrated severityNVD Advisory· Published Feb 26, 2025· Updated Dec 23, 2025

RDMA/hfi1: Prevent panic when SDMA is disabled

CVE-2022-49429

Description

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.

Affected products

93

Patches

0

No patches discovered yet.

Vulnerability mechanics

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References

8

News mentions

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