RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/umem.c",
                        "include/rdma/ib_umem.h"
                    ],
                    "versions": [
                        {
                            "version": "a40c20dabdf9045270767c75918feb67f0727c89",
                            "lessThan": "3014da7587ce006cd08004fd6b257626b314e0a3",
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                        },
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                        {
                            "version": "85e40ba1c4a5246b35e91c2ed69d4680426904d7",
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                        },
                        {
                            "version": "59f07434b297e2268f5d5c567db5b09145245cf1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "488229b7729d7becf4c39c5e74fb709fb35115c2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.73",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.8.17",
                            "lessThan": "5.9",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.9.2",
                            "lessThan": "5.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/umem.c",
                        "include/rdma/ib_umem.h"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
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                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }