CVE-2025-22069 (GCVE-0-2025-22069)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler Naresh Kamboju reported a "Bad frame pointer" kernel warning while running LTP trace ftrace_stress_test.sh in riscv. We can reproduce the same issue with the following command: ``` $ cd /sys/kernel/debug/tracing $ echo 'f:myprobe do_nanosleep%return args1=$retval' > dynamic_events $ echo 1 > events/fprobes/enable $ echo 1 > tracing_on $ sleep 1 ``` And we can get the following kernel warning: [ 127.692888] ------------[ cut here ]------------ [ 127.693755] Bad frame pointer: expected ff2000000065be50, received ba34c141e9594000 [ 127.693755] from func do_nanosleep return to ffffffff800ccb16 [ 127.698699] WARNING: CPU: 1 PID: 129 at kernel/trace/fgraph.c:755 ftrace_return_to_handler+0x1b2/0x1be [ 127.699894] Modules linked in: [ 127.700908] CPU: 1 UID: 0 PID: 129 Comm: sleep Not tainted 6.14.0-rc3-g0ab191c74642 #32 [ 127.701453] Hardware name: riscv-virtio,qemu (DT) [ 127.701859] epc : ftrace_return_to_handler+0x1b2/0x1be [ 127.702032] ra : ftrace_return_to_handler+0x1b2/0x1be [ 127.702151] epc : ffffffff8013b5e0 ra : ffffffff8013b5e0 sp : ff2000000065bd10 [ 127.702221] gp : ffffffff819c12f8 tp : ff60000080853100 t0 : 6e00000000000000 [ 127.702284] t1 : 0000000000000020 t2 : 6e7566206d6f7266 s0 : ff2000000065bd80 [ 127.702346] s1 : ff60000081262000 a0 : 000000000000007b a1 : ffffffff81894f20 [ 127.702408] a2 : 0000000000000010 a3 : fffffffffffffffe a4 : 0000000000000000 [ 127.702470] a5 : 0000000000000000 a6 : 0000000000000008 a7 : 0000000000000038 [ 127.702530] s2 : ba34c141e9594000 s3 : 0000000000000000 s4 : ff2000000065bdd0 [ 127.702591] s5 : 00007fff8adcf400 s6 : 000055556dc1d8c0 s7 : 0000000000000068 [ 127.702651] s8 : 00007fff8adf5d10 s9 : 000000000000006d s10: 0000000000000001 [ 127.702710] s11: 00005555737377c8 t3 : ffffffff819d899e t4 : ffffffff819d899e [ 127.702769] t5 : ffffffff819d89a0 t6 : ff2000000065bb18 [ 127.702826] status: 0000000200000120 badaddr: 0000000000000000 cause: 0000000000000003 [ 127.703292] [<ffffffff8013b5e0>] ftrace_return_to_handler+0x1b2/0x1be [ 127.703760] [<ffffffff80017bce>] return_to_handler+0x16/0x26 [ 127.704009] [<ffffffff80017bb8>] return_to_handler+0x0/0x26 [ 127.704057] [<ffffffff800d3352>] common_nsleep+0x42/0x54 [ 127.704117] [<ffffffff800d44a2>] __riscv_sys_clock_nanosleep+0xba/0x10a [ 127.704176] [<ffffffff80901c56>] do_trap_ecall_u+0x188/0x218 [ 127.704295] [<ffffffff8090cc3e>] handle_exception+0x14a/0x156 [ 127.705436] ---[ end trace 0000000000000000 ]--- The reason is that the stack layout for constructing argument for the ftrace_return_to_handler in the return_to_handler does not match the __arch_ftrace_regs structure of riscv, leading to unexpected results.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67a5ba8f742f247bc83e46dd2313c142b1383276
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78b39c587b8f6c69140177108f9c08a75b1c7c37
Impacted products
Vendor Product Version
Linux Linux Version: a3ed4157b7d89800a0008de0c9e46a438a5c3745
Version: a3ed4157b7d89800a0008de0c9e46a438a5c3745
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   Linux Linux Version: 6.14
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/mcount.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "78b39c587b8f6c69140177108f9c08a75b1c7c37",
              "status": "affected",
              "version": "a3ed4157b7d89800a0008de0c9e46a438a5c3745",
              "versionType": "git"
            },
            {
              "lessThan": "67a5ba8f742f247bc83e46dd2313c142b1383276",
              "status": "affected",
              "version": "a3ed4157b7d89800a0008de0c9e46a438a5c3745",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/mcount.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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 \u0027f:myprobe do_nanosleep%return args1=$retval\u0027 \u003e dynamic_events\n$ echo 1 \u003e events/fprobes/enable\n$ echo 1 \u003e 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] [\u003cffffffff8013b5e0\u003e] ftrace_return_to_handler+0x1b2/0x1be\n[  127.703760] [\u003cffffffff80017bce\u003e] return_to_handler+0x16/0x26\n[  127.704009] [\u003cffffffff80017bb8\u003e] return_to_handler+0x0/0x26\n[  127.704057] [\u003cffffffff800d3352\u003e] common_nsleep+0x42/0x54\n[  127.704117] [\u003cffffffff800d44a2\u003e] __riscv_sys_clock_nanosleep+0xba/0x10a\n[  127.704176] [\u003cffffffff80901c56\u003e] do_trap_ecall_u+0x188/0x218\n[  127.704295] [\u003cffffffff8090cc3e\u003e] 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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:17:47.622Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22069",
    "datePublished": "2025-04-16T14:12:22.357Z",
    "dateReserved": "2024-12-29T08:45:45.814Z",
    "dateUpdated": "2025-05-26T05:17:47.622Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22069\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:01.100\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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 \u0027f:myprobe do_nanosleep%return args1=$retval\u0027 \u003e dynamic_events\\n$ echo 1 \u003e events/fprobes/enable\\n$ echo 1 \u003e 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] [\u003cffffffff8013b5e0\u003e] ftrace_return_to_handler+0x1b2/0x1be\\n[  127.703760] [\u003cffffffff80017bce\u003e] return_to_handler+0x16/0x26\\n[  127.704009] [\u003cffffffff80017bb8\u003e] return_to_handler+0x0/0x26\\n[  127.704057] [\u003cffffffff800d3352\u003e] common_nsleep+0x42/0x54\\n[  127.704117] [\u003cffffffff800d44a2\u003e] __riscv_sys_clock_nanosleep+0xba/0x10a\\n[  127.704176] [\u003cffffffff80901c56\u003e] do_trap_ecall_u+0x188/0x218\\n[  127.704295] [\u003cffffffff8090cc3e\u003e] 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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/67a5ba8f742f247bc83e46dd2313c142b1383276\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/78b39c587b8f6c69140177108f9c08a75b1c7c37\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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