{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74382",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.890Z",
        "datePublished": "2026-08-15T05:58:59.106Z",
        "dateUpdated": "2026-08-17T05:18:20.179Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:18:20.179Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: cls_bpf: prevent unbounded recursion in offload rollback\n\nQuan Sun reported [1] a stack overflow in cls_bpf_offload_cmd().\n\nReproducer on netdevsim: add a skip_sw cls_bpf filter, set the\nbpf_tc_accept debugfs knob to 0, then `tc filter replace`. The replace\ncalls tc_setup_cb_replace() which fails. cls_bpf_offload_cmd() then\nswaps prog/oldprog and recursively calls itself to roll back. But\nbpf_tc_accept=0 makes the rollback fail too, which triggers yet another\nrollback frame with the same arguments, and so on until the stack is\nexhausted.\n\nbpf_tc_accept is just a convenient knob for the reproducer. Any driver\nwhose tc_setup_cb_replace() fails twice in a row can hit the same loop,\nso this is not a netdevsim-only issue.\n\nTwo ways to fix it:\n\n  1) Have the rollback call tc_setup_cb_add() on oldprog instead of\n     re-entering cls_bpf_offload_cmd().\n  2) Mark the rollback frame with a flag and skip a second-level\n     rollback from inside it.\n\nGo with (2). It is the smaller change and keeps the original behaviour:\nthe rollback still goes through tc_setup_cb_replace(), so the driver\ngets one real chance to restore its state. If that attempt also fails,\nwe just return the original error instead of recursing.\n\n[1]: https://lore.kernel.org/bpf/ce5a6005-3c5e-4696-9e05-eba9461dc860@std.uestc.edu.cn/T/#u"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sched/cls_bpf.c"
                    ],
                    "versions": [
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "a018f208ab7512380bd4cf670064d48cba00a1b1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "33373e1f378a501bc51aa73312f74295c84e3101",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "e2d3b7bab3748c811dc5750ce9a8d62bc7f90ed7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "4a76953c3ed043797e81529b9395e9ca6f4c7609",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "1387f252a242a51bfbb6eace29c8f8db21b457da",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "10753da2d659dd425a6e620f47f86852d604f67f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "3fa6fb5d771c992ebedbfa7331c6bcc6f33f89b7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "102740bd9436a3a6ba129af3a48271d794009fa5",
                            "lessThan": "27db54b90bcc7c37867fe664107fa25ea6a116e4",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sched/cls_bpf.c"
                    ],
                    "versions": [
                        {
                            "version": "4.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.10.261"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a018f208ab7512380bd4cf670064d48cba00a1b1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/33373e1f378a501bc51aa73312f74295c84e3101"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e2d3b7bab3748c811dc5750ce9a8d62bc7f90ed7"
                },
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                    "url": "https://git.kernel.org/stable/c/4a76953c3ed043797e81529b9395e9ca6f4c7609"
                },
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                    "url": "https://git.kernel.org/stable/c/1387f252a242a51bfbb6eace29c8f8db21b457da"
                },
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                },
                {
                    "url": "https://git.kernel.org/stable/c/27db54b90bcc7c37867fe664107fa25ea6a116e4"
                }
            ],
            "title": "net/sched: cls_bpf: prevent unbounded recursion in offload rollback",
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}