{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53859",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-09T01:27:17.828Z",
        "datePublished": "2025-12-09T01:30:26.351Z",
        "dateUpdated": "2026-05-23T15:31:27.524Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:31:27.524Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/idle: mark arch_cpu_idle() noinstr\n\nlinux-next commit (\"cpuidle: tracing: Warn about !rcu_is_watching()\")\nadds a new warning which hits on s390's arch_cpu_idle() function:\n\nRCU not on for: arch_cpu_idle+0x0/0x28\nWARNING: CPU: 2 PID: 0 at include/linux/trace_recursion.h:162 arch_ftrace_ops_list_func+0x24c/0x258\nModules linked in:\nCPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.2.0-rc6-next-20230202 #4\nHardware name: IBM 8561 T01 703 (z/VM 7.3.0)\nKrnl PSW : 0404d00180000000 00000000002b55c0 (arch_ftrace_ops_list_func+0x250/0x258)\n           R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3\nKrnl GPRS: c0000000ffffbfff 0000000080000002 0000000000000026 0000000000000000\n           0000037ffffe3a28 0000037ffffe3a20 0000000000000000 0000000000000000\n           0000000000000000 0000000000f4acf6 00000000001044f0 0000037ffffe3cb0\n           0000000000000000 0000000000000000 00000000002b55bc 0000037ffffe3bb8\nKrnl Code: 00000000002b55b0: c02000840051        larl    %r2,0000000001335652\n           00000000002b55b6: c0e5fff512d1        brasl   %r14,0000000000157b58\n          #00000000002b55bc: af000000            mc      0,0\n          >00000000002b55c0: a7f4ffe7            brc     15,00000000002b558e\n           00000000002b55c4: 0707                bcr     0,%r7\n           00000000002b55c6: 0707                bcr     0,%r7\n           00000000002b55c8: eb6ff0480024        stmg    %r6,%r15,72(%r15)\n           00000000002b55ce: b90400ef            lgr     %r14,%r15\nCall Trace:\n [<00000000002b55c0>] arch_ftrace_ops_list_func+0x250/0x258\n([<00000000002b55bc>] arch_ftrace_ops_list_func+0x24c/0x258)\n [<0000000000f5f0fc>] ftrace_common+0x1c/0x20\n [<00000000001044f6>] arch_cpu_idle+0x6/0x28\n [<0000000000f4acf6>] default_idle_call+0x76/0x128\n [<00000000001cc374>] do_idle+0xf4/0x1b0\n [<00000000001cc6ce>] cpu_startup_entry+0x36/0x40\n [<0000000000119d00>] smp_start_secondary+0x140/0x150\n [<0000000000f5d2ae>] restart_int_handler+0x6e/0x90\n\nMark arch_cpu_idle() noinstr like all other architectures with\nCONFIG_ARCH_WANTS_NO_INSTR (should) have it to fix this."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/s390/kernel/idle.c"
                    ],
                    "versions": [
                        {
                            "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
                            "lessThan": "49aa49952116b8fd56bfb1e8c69bce179f49bece",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
                            "lessThan": "611c390217106c46e24e1af3db83187339d447ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
                            "lessThan": "fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
                            "lessThan": "a9cbc1b471d291c865907542394f1c483b93a811",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "788621afda4101ca0fae48de424040cda78193fe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.19.297",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/s390/kernel/idle.c"
                    ],
                    "versions": [
                        {
                            "version": "5.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.99",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.16",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.3",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "5.15.99"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.1.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.2.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.297"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/49aa49952116b8fd56bfb1e8c69bce179f49bece"
                },
                {
                    "url": "https://git.kernel.org/stable/c/611c390217106c46e24e1af3db83187339d447ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a9cbc1b471d291c865907542394f1c483b93a811"
                }
            ],
            "title": "s390/idle: mark arch_cpu_idle() noinstr",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}