{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-22069",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-29T08:45:45.814Z",
        "datePublished": "2025-04-16T14:12:22.357Z",
        "dateUpdated": "2026-06-01T16:05:09.341Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:05:09.341Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler\n\nNaresh Kamboju reported a \"Bad frame pointer\" kernel warning while\nrunning LTP trace ftrace_stress_test.sh in riscv. We can reproduce the\nsame issue with the following command:\n\n```\n$ cd /sys/kernel/debug/tracing\n$ echo 'f:myprobe do_nanosleep%return args1=$retval' > dynamic_events\n$ echo 1 > events/fprobes/enable\n$ echo 1 > tracing_on\n$ sleep 1\n```\n\nAnd we can get the following kernel warning:\n\n[  127.692888] ------------[ cut here ]------------\n[  127.693755] Bad frame pointer: expected ff2000000065be50, received ba34c141e9594000\n[  127.693755]   from func do_nanosleep return to ffffffff800ccb16\n[  127.698699] WARNING: CPU: 1 PID: 129 at kernel/trace/fgraph.c:755 ftrace_return_to_handler+0x1b2/0x1be\n[  127.699894] Modules linked in:\n[  127.700908] CPU: 1 UID: 0 PID: 129 Comm: sleep Not tainted 6.14.0-rc3-g0ab191c74642 #32\n[  127.701453] Hardware name: riscv-virtio,qemu (DT)\n[  127.701859] epc : ftrace_return_to_handler+0x1b2/0x1be\n[  127.702032]  ra : ftrace_return_to_handler+0x1b2/0x1be\n[  127.702151] epc : ffffffff8013b5e0 ra : ffffffff8013b5e0 sp : ff2000000065bd10\n[  127.702221]  gp : ffffffff819c12f8 tp : ff60000080853100 t0 : 6e00000000000000\n[  127.702284]  t1 : 0000000000000020 t2 : 6e7566206d6f7266 s0 : ff2000000065bd80\n[  127.702346]  s1 : ff60000081262000 a0 : 000000000000007b a1 : ffffffff81894f20\n[  127.702408]  a2 : 0000000000000010 a3 : fffffffffffffffe a4 : 0000000000000000\n[  127.702470]  a5 : 0000000000000000 a6 : 0000000000000008 a7 : 0000000000000038\n[  127.702530]  s2 : ba34c141e9594000 s3 : 0000000000000000 s4 : ff2000000065bdd0\n[  127.702591]  s5 : 00007fff8adcf400 s6 : 000055556dc1d8c0 s7 : 0000000000000068\n[  127.702651]  s8 : 00007fff8adf5d10 s9 : 000000000000006d s10: 0000000000000001\n[  127.702710]  s11: 00005555737377c8 t3 : ffffffff819d899e t4 : ffffffff819d899e\n[  127.702769]  t5 : ffffffff819d89a0 t6 : ff2000000065bb18\n[  127.702826] status: 0000000200000120 badaddr: 0000000000000000 cause: 0000000000000003\n[  127.703292] [<ffffffff8013b5e0>] ftrace_return_to_handler+0x1b2/0x1be\n[  127.703760] [<ffffffff80017bce>] return_to_handler+0x16/0x26\n[  127.704009] [<ffffffff80017bb8>] return_to_handler+0x0/0x26\n[  127.704057] [<ffffffff800d3352>] common_nsleep+0x42/0x54\n[  127.704117] [<ffffffff800d44a2>] __riscv_sys_clock_nanosleep+0xba/0x10a\n[  127.704176] [<ffffffff80901c56>] do_trap_ecall_u+0x188/0x218\n[  127.704295] [<ffffffff8090cc3e>] handle_exception+0x14a/0x156\n[  127.705436] ---[ end trace 0000000000000000 ]---\n\nThe reason is that the stack layout for constructing argument for the\nftrace_return_to_handler in the return_to_handler does not match the\n__arch_ftrace_regs structure of riscv, leading to unexpected results."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/kernel/mcount.S"
                    ],
                    "versions": [
                        {
                            "version": "33d4e904e24d14ff0fbc528b657ddc7c7b636e6a",
                            "lessThan": "7ed384db061a264bd806898f7ccab9b98b591488",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a3ed4157b7d89800a0008de0c9e46a438a5c3745",
                            "lessThan": "78b39c587b8f6c69140177108f9c08a75b1c7c37",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a3ed4157b7d89800a0008de0c9e46a438a5c3745",
                            "lessThan": "67a5ba8f742f247bc83e46dd2313c142b1383276",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.75",
                            "lessThan": "6.12.92",
                            "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/riscv/kernel/mcount.S"
                    ],
                    "versions": [
                        {
                            "version": "6.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.92",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.2",
                            "lessThanOrEqual": "6.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15",
                            "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": "6.12.75",
                                    "versionEndExcluding": "6.12.92"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14",
                                    "versionEndExcluding": "6.14.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14",
                                    "versionEndExcluding": "6.15"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7ed384db061a264bd806898f7ccab9b98b591488"
                },
                {
                    "url": "https://git.kernel.org/stable/c/78b39c587b8f6c69140177108f9c08a75b1c7c37"
                },
                {
                    "url": "https://git.kernel.org/stable/c/67a5ba8f742f247bc83e46dd2313c142b1383276"
                }
            ],
            "title": "riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}