Answer in brief
CVE-2026-46084 records a High severity (CVSS 7.8) vulnerability in RDMA/mana_ib: Disable RX steering on RSS QP destroy. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <6a2d6273b6c3581ce7b90ce17b5cbb4efd19438f || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <f1ccc4d500a0b87a5599343fc2f798048836e184 || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <8ba804869382ce307f2a15f5f6f2adfd791f41dc || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <3be5ed233de03b00ae868cfc06e95331d8d9007c || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <dbeb256e8dd87233d891b170c0b32a6466467036 | 6a2d6273b6c3581ce7b90ce17b5cbb4efd19438f, f1ccc4d500a0b87a5599343fc2f798048836e184, 8ba804869382ce307f2a15f5f6f2adfd791f41dc, 3be5ed233de03b00ae868cfc06e95331d8d9007c, dbeb256e8dd87233d891b170c0b32a6466467036 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: Disable RX steering on RSS QP destroy When an RSS QP is destroyed (e.g. DPDK exit), mana_ib_destroy_qp_rss() destroys the RX WQ objects but does not disable vPort RX steering in firmware. This leaves stale steering configuration that still points to the destroyed RX objects. If traffic continues to arrive (e.g. peer VM is still transmitting) and the VF interface is subsequently brought up (mana_open), the firmware may deliver completions using stale CQ IDs from the old RX objects. These CQ IDs can be reused by the ethernet driver for new TX CQs, causing RX completions to land on TX CQs: WARNING: mana_poll_tx_cq+0x1b8/0x220 [mana] (is_sq == false) WARNING: mana_gd_process_eq_events+0x209/0x290 (cq_table lookup fails) Fix this by disabling vPort RX steering before destroying RX WQ objects. Note that mana_fence_rqs() cannot be used here because the fence completion is delivered on the CQ, which is polled by user-mode (e.g. DPDK) and not visible to the kernel driver. Refactor the disable logic into a shared mana_disable_vport_rx() in mana_en, exported for use by mana_ib, replacing the duplicate code. The ethernet driver's mana_dealloc_queues() is also updated to call this common function.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46084 records a High severity (CVSS 7.8) vulnerability in RDMA/mana_ib: Disable RX steering on RSS QP destroy. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <6a2d6273b6c3581ce7b90ce17b5cbb4efd19438f || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <f1ccc4d500a0b87a5599343fc2f798048836e184 || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <8ba804869382ce307f2a15f5f6f2adfd791f41dc || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <3be5ed233de03b00ae868cfc06e95331d8d9007c || >=0266a177631d4c6b963b5b12dd986a8c5abdbf06 <dbeb256e8dd87233d891b170c0b32a6466467036 | 6a2d6273b6c3581ce7b90ce17b5cbb4efd19438f, f1ccc4d500a0b87a5599343fc2f798048836e184, 8ba804869382ce307f2a15f5f6f2adfd791f41dc, 3be5ed233de03b00ae868cfc06e95331d8d9007c, dbeb256e8dd87233d891b170c0b32a6466467036 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: Disable RX steering on RSS QP destroy When an RSS QP is destroyed (e.g. DPDK exit), mana_ib_destroy_qp_rss() destroys the RX WQ objects but does not disable vPort RX steering in firmware. This leaves stale steering configuration that still points to the destroyed RX objects. If traffic continues to arrive (e.g. peer VM is still transmitting) and the VF interface is subsequently brought up (mana_open), the firmware may deliver completions using stale CQ IDs from the old RX objects. These CQ IDs can be reused by the ethernet driver for new TX CQs, causing RX completions to land on TX CQs: WARNING: mana_poll_tx_cq+0x1b8/0x220 [mana] (is_sq == false) WARNING: mana_gd_process_eq_events+0x209/0x290 (cq_table lookup fails) Fix this by disabling vPort RX steering before destroying RX WQ objects. Note that mana_fence_rqs() cannot be used here because the fence completion is delivered on the CQ, which is polled by user-mode (e.g. DPDK) and not visible to the kernel driver. Refactor the disable logic into a shared mana_disable_vport_rx() in mana_en, exported for use by mana_ib, replacing the duplicate code. The ethernet driver's mana_dealloc_queues() is also updated to call this common function.
Quoted source text, attributed separately from HOL analysis.