CVSS7.8
Severityhigh
Weakness—
ExploitedNot in CISA KEV
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, skip peer flow cleanup when LAG seq is unavailable mlx5_lag_get_dev_seq() will return error when the peer isn't in the LAG or when no device is marked as master. Result bad memory access and kernel crash[1]. Hence, skip the peer when lookup fails. Note: In case there are peer flows, they are cleaned before LAG cleared the master mark. [1] RIP: 0010:mlx5e_tc_del_fdb_peers_flow+0x3d/0x350 [mlx5_core] Call Trace: <TASK> mlx5e_tc_clean_fdb_peer_flows+0xc1/0x130 [mlx5_core] mlx5_esw_offloads_unpair+0x3a/0x400 [mlx5_core] mlx5_esw_offloads_devcom_event+0xee/0x360 [mlx5_core] mlx5_devcom_send_event+0x7a/0x1