Linux Distros Unpatched Vulnerability : CVE-2026-80739

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

SUSE CVE-2026-80739

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

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...

AZL-99030 CVE-2026-80739 affecting package kernel for versions less than 6.6.152.1-1

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...

UBUNTU-CVE-2026-80739

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

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...

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

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...

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...

PT-2026-90879

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

CVE-2026-80739: Undefined Security Weakness

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...

PT-2026-84937

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An AA deadlock occurs in the Linux kernel when mlx5e add fdb flow fails in lower levels. The failure triggers the deletion of the flow via mlx5e tc del flow, which acquires the ESW devco...

CVE-2023-53591 net/mlx5e: Fix deadlock in tc route query code

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix deadlock in tc route query code Cited commit causes ABBA deadlock0 when peer flows are created while holding the devcom rw semaphore. Due to peer flows offload implementation the lock is taken much higher up the ca...