CVE-2026-90219
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/cxgb4: Free debugfs on registration failure
c4iw_alloc() creates the per-device debugfs tree (dev->debugfs_root via setup_debugfs()), but it is removed only in c4iw_remove(), not in c4iw_dealloc(). When RDMA device registration fails, the registration worker's err_dealloc_ctx path calls c4iw_dealloc() directly, bypassing c4iw_remove(), so the debugfs dentries leak and outlive the freed c4iw_dev.
Move debugfs_remove_recursive() into c4iw_dealloc() so every path that frees ctx->dev also removes its debugfs tree.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < 459b59f7ed56511d6529311cb4e5e482ebfcfb8e | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8 | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < c332d9e7dce234d8bef78271d003a68ee943b61b | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < f98e894ec029a752cf9c7f7834741bead0fb463d | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < 479a7f90060e62bdd9bb4036ec0a70bf460f6d23 | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < 046425412529dbfca1433c8bef5641b271b4ab2a | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < ea41b5630fa3d9877ce9ed8832cf5575f742bfbb | affected |
| Linux | Linux | 49ea0c036ede81f126f1a9389d377999fdf5c5a1 < fe5c16bb6252dea6025b748257ddc3b2665495b0 | affected |
| Linux | Linux | 98fa991017981b52dcc4dc3924fc8e1e83e41bf4 | affected |
| Linux | Linux | af92e4a595e006b498c44b617ea38f697eca3469 | affected |
| Linux | Linux | 9c0cec79e5c914662c2cf98b4a729c0fcc8c872e | affected |
| Linux | Linux | 4.19.130 < 4.20 | affected |
| Linux | Linux | 5.4.49 < 5.5 | affected |
| Linux | Linux | 5.7.6 < 5.8 | affected |
| Linux | Linux | 5.8 | affected |
| Linux | Linux | 0 < 5.8 | unaffected |
| Linux | Linux | 5.10.270 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.221 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/459b59f7ed56511d6529311cb4e5e482ebfcfb8e
- https://git.kernel.org/stable/c/cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8
- https://git.kernel.org/stable/c/c332d9e7dce234d8bef78271d003a68ee943b61b
- https://git.kernel.org/stable/c/f98e894ec029a752cf9c7f7834741bead0fb463d
- https://git.kernel.org/stable/c/479a7f90060e62bdd9bb4036ec0a70bf460f6d23
- https://git.kernel.org/stable/c/046425412529dbfca1433c8bef5641b271b4ab2a
- https://git.kernel.org/stable/c/ea41b5630fa3d9877ce9ed8832cf5575f742bfbb
- https://git.kernel.org/stable/c/fe5c16bb6252dea6025b748257ddc3b2665495b0
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