CVE-2022-49429

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 33794e8e9bcb4affc0ebff9cdec85acc8b8a1762; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86f; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < e60ad83f645ee6fadd5a8057ba267aeec54f08fe; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < cc80d3c37cec9d6ddb140483647901bc7cc6c31d; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 32e6aea33944f364d51cd263e4cd236393a188b6; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 29952ab85d6c3fe0b7909d9a737f10c58bf6824d; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 22e7e400fd1a890db2ea13686324aff50e972f4f; >= 0cb2aa690c7ef14ad1f544288349abb5434bb75d, < 629e052d0c98e46dde9f0824f0aa437f678d9b8f
LinuxLinux4.9

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2022-49429: Medium severity, CVSS 5.5 | Vulnix