cvelist/2024/50xxx/CVE-2024-50163.json

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        "ID": "CVE-2024-50163",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
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    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Make sure internal and UAPI bpf_redirect flags don't overlap\n\nThe bpf_redirect_info is shared between the SKB and XDP redirect paths,\nand the two paths use the same numeric flag values in the ri->flags\nfield (specifically, BPF_F_BROADCAST == BPF_F_NEXTHOP). This means that\nif skb bpf_redirect_neigh() is used with a non-NULL params argument and,\nsubsequently, an XDP redirect is performed using the same\nbpf_redirect_info struct, the XDP path will get confused and end up\ncrashing, which syzbot managed to trigger.\n\nWith the stack-allocated bpf_redirect_info, the structure is no longer\nshared between the SKB and XDP paths, so the crash doesn't happen\nanymore. However, different code paths using identically-numbered flag\nvalues in the same struct field still seems like a bit of a mess, so\nthis patch cleans that up by moving the flag definitions together and\nredefining the three flags in BPF_F_REDIRECT_INTERNAL to not overlap\nwith the flags used for XDP. It also adds a BUILD_BUG_ON() check to make\nsure the overlap is not re-introduced by mistake."
            }
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                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
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    "affects": {
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                    "vendor_name": "Linux",
                    "product": {
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                                "product_name": "Linux",
                                "version": {
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                                            "version_affected": "<",
                                            "version_name": "e624d4ed4aa8",
                                            "version_value": "4e1e42853384"
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                                        {
                                            "version_value": "not down converted",
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                                                    {
                                                        "version": "5.14",
                                                        "status": "affected"
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                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.14",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
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                                                    {
                                                        "version": "5.15.170",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
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                                                        "version": "6.1.115",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
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                                                    {
                                                        "version": "6.6.59",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
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                                                    {
                                                        "version": "6.11.6",
                                                        "lessThanOrEqual": "6.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
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                                                    {
                                                        "version": "6.12",
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                "url": "https://git.kernel.org/stable/c/4e1e428533845d48828bd3875c0e92e8565b9962",
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            {
                "url": "https://git.kernel.org/stable/c/314dbee9fe4f5cee36435465de52c988d7caa466",
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                "name": "https://git.kernel.org/stable/c/314dbee9fe4f5cee36435465de52c988d7caa466"
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                "url": "https://git.kernel.org/stable/c/0fca5ed4be8e8bfbfb9bd97845af596bab7192d3",
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                "name": "https://git.kernel.org/stable/c/0fca5ed4be8e8bfbfb9bd97845af596bab7192d3"
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                "name": "https://git.kernel.org/stable/c/cec288e05ceac9a0d3a3a1fd279534b11844c826"
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