Description
In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier mlx5_ib_alloc_transport_domain() allocates a transport domain and then may fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked. Fix this by deallocating the TD when mlx5_ib_enable_lb() returns an error. Also return 0 explicitly in the no-loopback-capability success branch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init().
References6
- git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0
- git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57
- git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066
- git.kernel.org/stable/c/6da717ed8a0703a331295fdd5ad8b7eacec216ad
- git.kernel.org/stable/c/e79389115b9d27287ff6230a9750675106ed7668
- git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.