CVE-2026-80739

CVE-2026-80739 affects the Linux kernel 's mlx5_core driver (Mellanox/NVIDIA network hardware), specifically the TC (Traffic Control) offload path in net/mlx5e. When __mlx5e_add_fdb_flow() fails for a peer flow , the cleanup path mlx5e_tc_del_flow() acquires the ESW devcom lock unconditionally wh...

EUVD-2026-70343

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, Check if flow is PEER before acquiring devcom lock In case mlx5eaddfdbflow fails in lower levels, the flow is deleted via mlx5etcdelflow, and mlx5etcdelflow is acquiring ESW devcom lock without condition. In...

CVE-2026-80739 net/mlx5e: TC, Check if flow is PEER before acquiring devcom lock

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, Check if flow is PEER before acquiring devcom lock In case mlx5eaddfdbflow fails in lower levels, the flow is deleted via mlx5etcdelflow, and mlx5etcdelflow is acquiring ESW devcom lock without condition. In...

CVE-2026-80667

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: LAG, MPESW, Fix missing complete on devcom error mlx5mpeswwork returned without calling complete when mlx5laggetdevcomcomp returned NULL. A caller that queued the work and waited on mpesww-comp would block indefinitely...

CVE-2026-80667

CVE-2026-80667 affects the Linux kernel's mlx5 driver (used by Mellanox/NVIDIA ConnectX network adapters), specifically the LAG (Link Aggregation Group) and MPESW (Multi-Packet Steering) subsystem. The root cause is that mlx5_mpesw_work() could return without calling complete() when mlx5_lag_get_...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: In devcom, fix for error flow in mlx5devcomregisterdevice. In the event of a failure in devcom allocation, mlx5 always releases the private memory. However, this private memory might have been allocated by a different...

CVE-2026-68139

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use sender devcom for MPV master-up After PCIe DPC recovery, mlx5 reloads the affected functions and replays multiport affiliation events. In the reported failure, the first relevant device error was: pcieport...

UBUNTU-CVE-2026-68139

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use sender devcom for MPV master-up After PCIe DPC recovery, mlx5 reloads the affected functions and replays multiport affiliation events. In the reported failure, the first relevant device error was: pcieport...

EUVD-2026-55520

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use sender devcom for MPV master-up After PCIe DPC recovery, mlx5 reloads the affected functions and replays multiport affiliation events. In the reported failure, the first relevant device error was: pcieport...

CVE-2026-68139 net/mlx5e: Use sender devcom for MPV master-up

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use sender devcom for MPV master-up After PCIe DPC recovery, mlx5 reloads the affected functions and replays multiport affiliation events. In the reported failure, the first relevant device error was: pcieport...

CVE-2026-68139

CVE-2026-68139 affects the Linux kernel mlx5e/MPV path. After PCIe DPC recovery, mlx5 reloads affected PCIe functions and replays multiport affiliation events; during resume, an RDMA multiport binding replay triggers an MPV_DEVCOM_MASTER_UP. The host panics with a NULL pointer dereference in mlx5...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5e: Fixed a deadlock in the tc route query code The cited commit caused a ABBA deadlock0 when peer flows were created while holding the devcom rw semaphore. Due to the peer flow offload implementation, the lock is taken...

CVE-2026-23173

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

CVE-2026-23173

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

CVE-2026-23173 net/mlx5e: TC, delete flows only for existing peers

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

CVE-2026-23173

CVE-2026-23173 affects the Linux kernel mlx5e driver (TC flow offload). The issue arises when deleting TC steering flows: the code previously iterated over all possible ports, potentially touching non-existent peers and risking a NULL pointer dereference. The fix ensures cleanup only occurs for d...

CVE-2026-23173 net/mlx5e: TC, delete flows only for existing peers

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

UBUNTU-CVE-2025-68790

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix double unregister of HCAPORTS component Clear hcadevcomcomp in device's private data after unregistering it in LAG teardown. Otherwise a slightly lagging second pass through mlx5unloadone might try to unregister it...

CVE-2025-68790

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix double unregister of HCAPORTS component Clear hcadevcomcomp in device's private data after unregistering it in LAG teardown. Otherwise a slightly lagging second pass through mlx5unloadone might try to unregister it...

CVE-2025-68790 net/mlx5: Fix double unregister of HCA_PORTS component

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix double unregister of HCAPORTS component Clear hcadevcomcomp in device's private data after unregistering it in LAG teardown. Otherwise a slightly lagging second pass through mlx5unloadone might try to unregister it...