CVE-2026-74397

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux146d2f1af3245a10b13eef263687e54f4e253d1d < 2c3b2667dad69d56774b79db763acb3a1bee0fc0affected
LinuxLinux146d2f1af3245a10b13eef263687e54f4e253d1d < 37fc3cc0f924fd8d0f0cf87b92672dec75a32e57affected
LinuxLinux146d2f1af3245a10b13eef263687e54f4e253d1d < 65e344925fa30abf50c8de8c150b397715fa2066affected
LinuxLinux146d2f1af3245a10b13eef263687e54f4e253d1d < f88e12c95fc19f719e06ca1e9eb20fdad68ef61aaffected
LinuxLinux146d2f1af3245a10b13eef263687e54f4e253d1d < e79389115b9d27287ff6230a9750675106ed7668affected
LinuxLinux4.5affected
LinuxLinux0 < 4.5unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References