{"id":"CVE-2026-74397","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74397","summary":"IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier\n\nmlx5_ib_alloc_transport_domain() allocates a transport domain and then\nmay fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked.\n\nFix this by deallocating the TD when mlx5_ib_enable_lb() returns an\nerror. Also return 0 explicitly in the no-loopback-capability success\nbranch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init().","published":"2026-08-15T05:59:09.329Z","modified":"2026-08-18T03:56:47.439540107Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.6.145"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e79389115b9d27287ff6230a9750675106ed7668"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74397.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74397"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:47.439540107Z"}}