CVE-2022-49429

RDMA/hfi1: Prevent panic when SDMA is disabled

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 02:12 AM UTC

Updated: June 17, 2026 at 05:18 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.14.2834.15 ≤ v < 4.19.2474.20 ≤ v < 5.4.1984.9 ≤ v < 4.14.2834.9 ≤ v < 4.19.2474.9 ≤ v < 5.10.1214.9 ≤ v < 5.15.464.9 ≤ v < 5.17.144.9 ≤ v < 5.18.34.9 ≤ v < 5.194.9 ≤ v < 5.4.1985.11 ≤ v < 5.15.465.16 ≤ v < 5.17.145.18 ≤ v < 5.18.35.5 ≤ v < 5.10.1210cb2aa690c7ef14ad1f544288349abb5434bb75d4.9

Vendor states this is fixed in 0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86f (fixed)

Vendor states this is fixed in 22e7e400fd1a890db2ea13686324aff50e972f4f (fixed)

Vendor states this is fixed in 29952ab85d6c3fe0b7909d9a737f10c58bf6824d (fixed)

Vendor states this is fixed in 32e6aea33944f364d51cd263e4cd236393a188b6 (fixed)

Vendor states this is fixed in 33794e8e9bcb4affc0ebff9cdec85acc8b8a1762 (fixed)

Vendor states this is fixed in 629e052d0c98e46dde9f0824f0aa437f678d9b8f (fixed)

Vendor states this is fixed in cc80d3c37cec9d6ddb140483647901bc7cc6c31d (fixed)

Vendor states this is fixed in e60ad83f645ee6fadd5a8057ba267aeec54f08fe (fixed)

Vendor states this is fixed in 4.14.283 (unaffected)

Vendor states this is fixed in 4.19.247 (unaffected)

Vendor states this is fixed in 4.9 (unaffected)

Vendor states this is fixed in 5.10.121 (unaffected)