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EUVD-2026-314539

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:31

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:31:36.630078+00:00",
  "id": "EUVD-2026-314539"
}

CVE-2025-38320 (GCVE-0-2025-38320)

Vulnerability from cvelistv5 – Published: 2025-07-10 08:14 – Updated: 2026-05-11 21:25

Title

arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()

Summary

In the Linux kernel, the following vulnerability has been resolved: arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth() KASAN reports a stack-out-of-bounds read in regs_get_kernel_stack_nth(). Call Trace: [ 97.283505] BUG: KASAN: stack-out-of-bounds in regs_get_kernel_stack_nth+0xa8/0xc8 [ 97.284677] Read of size 8 at addr ffff800089277c10 by task 1.sh/2550 [ 97.285732] [ 97.286067] CPU: 7 PID: 2550 Comm: 1.sh Not tainted 6.6.0+ #11 [ 97.287032] Hardware name: linux,dummy-virt (DT) [ 97.287815] Call trace: [ 97.288279] dump_backtrace+0xa0/0x128 [ 97.288946] show_stack+0x20/0x38 [ 97.289551] dump_stack_lvl+0x78/0xc8 [ 97.290203] print_address_description.constprop.0+0x84/0x3c8 [ 97.291159] print_report+0xb0/0x280 [ 97.291792] kasan_report+0x84/0xd0 [ 97.292421] __asan_load8+0x9c/0xc0 [ 97.293042] regs_get_kernel_stack_nth+0xa8/0xc8 [ 97.293835] process_fetch_insn+0x770/0xa30 [ 97.294562] kprobe_trace_func+0x254/0x3b0 [ 97.295271] kprobe_dispatcher+0x98/0xe0 [ 97.295955] kprobe_breakpoint_handler+0x1b0/0x210 [ 97.296774] call_break_hook+0xc4/0x100 [ 97.297451] brk_handler+0x24/0x78 [ 97.298073] do_debug_exception+0xac/0x178 [ 97.298785] el1_dbg+0x70/0x90 [ 97.299344] el1h_64_sync_handler+0xcc/0xe8 [ 97.300066] el1h_64_sync+0x78/0x80 [ 97.300699] kernel_clone+0x0/0x500 [ 97.301331] __arm64_sys_clone+0x70/0x90 [ 97.302084] invoke_syscall+0x68/0x198 [ 97.302746] el0_svc_common.constprop.0+0x11c/0x150 [ 97.303569] do_el0_svc+0x38/0x50 [ 97.304164] el0_svc+0x44/0x1d8 [ 97.304749] el0t_64_sync_handler+0x100/0x130 [ 97.305500] el0t_64_sync+0x188/0x190 [ 97.306151] [ 97.306475] The buggy address belongs to stack of task 1.sh/2550 [ 97.307461] and is located at offset 0 in frame: [ 97.308257] __se_sys_clone+0x0/0x138 [ 97.308910] [ 97.309241] This frame has 1 object: [ 97.309873] [48, 184) 'args' [ 97.309876] [ 97.310749] The buggy address belongs to the virtual mapping at [ 97.310749] [ffff800089270000, ffff800089279000) created by: [ 97.310749] dup_task_struct+0xc0/0x2e8 [ 97.313347] [ 97.313674] The buggy address belongs to the physical page: [ 97.314604] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14f69a [ 97.315885] flags: 0x15ffffe00000000(node=1|zone=2|lastcpupid=0xfffff) [ 97.316957] raw: 015ffffe00000000 0000000000000000 dead000000000122 0000000000000000 [ 97.318207] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 97.319445] page dumped because: kasan: bad access detected [ 97.320371] [ 97.320694] Memory state around the buggy address: [ 97.321511] ffff800089277b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 97.322681] ffff800089277b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 97.323846] >ffff800089277c00: 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00 [ 97.325023] ^ [ 97.325683] ffff800089277c80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3 [ 97.326856] ffff800089277d00: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 This issue seems to be related to the behavior of some gcc compilers and was also fixed on the s390 architecture before: commit d93a855c31b7 ("s390/ptrace: Avoid KASAN false positives in regs_get_kernel_stack_nth()") As described in that commit, regs_get_kernel_stack_nth() has confirmed that `addr` is on the stack, so reading the value at `*addr` should be allowed. Use READ_ONCE_NOCHECK() helper to silence the KASAN check for this case. [will: Use '*addr' as the argument to READ_ONCE_NOCHECK()]

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

10 references

URL	Tags
https://git.kernel.org/stable/c/64773b3ea09235168…
https://git.kernel.org/stable/c/67abac27d806e8f9d…
https://git.kernel.org/stable/c/92750bfe7b0d8dbca…
https://git.kernel.org/stable/c/01f91d415a8375d85…
https://git.kernel.org/stable/c/21da6d3561f373898…
https://git.kernel.org/stable/c/22f935bc86bdfbde0…
https://git.kernel.org/stable/c/422e565b7889ebfd9…
https://git.kernel.org/stable/c/39dfc971e42d886e7…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 64773b3ea09235168a549a195cba43bb867c4a17 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 67abac27d806e8f9d4226ec1528540cf73af673a (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 01f91d415a8375d85e0c7d3615cd4a168308bb7c (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 21da6d3561f373898349ca7167c9811c020da695 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 22f935bc86bdfbde04009f05eee191d220cd8c89 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 422e565b7889ebfd9c8705a3fc786642afe61fca (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 39dfc971e42d886e7df01371cd1bef505076d84c (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:36:30.512Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      }
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    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "64773b3ea09235168a549a195cba43bb867c4a17",
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              "versionType": "git"
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            {
              "lessThan": "67abac27d806e8f9d4226ec1528540cf73af673a",
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              "versionType": "git"
            },
            {
              "lessThan": "92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38",
              "status": "affected",
              "version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
              "versionType": "git"
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            {
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              "versionType": "git"
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          "defaultStatus": "affected",
          "product": "Linux",
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            "arch/arm64/kernel/ptrace.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
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              "version": "0",
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              "status": "unaffected",
              "version": "5.10.239",
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.186",
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.142",
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              "status": "unaffected",
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.15.4",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.295",
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                  "vulnerable": true
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                  "vulnerable": true
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                {
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                  "versionStartIncluding": "4.8",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.95",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.35",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.4",
                  "versionStartIncluding": "4.8",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "4.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()\n\nKASAN reports a stack-out-of-bounds read in regs_get_kernel_stack_nth().\n\nCall Trace:\n[   97.283505] BUG: KASAN: stack-out-of-bounds in regs_get_kernel_stack_nth+0xa8/0xc8\n[   97.284677] Read of size 8 at addr ffff800089277c10 by task 1.sh/2550\n[   97.285732]\n[   97.286067] CPU: 7 PID: 2550 Comm: 1.sh Not tainted 6.6.0+ #11\n[   97.287032] Hardware name: linux,dummy-virt (DT)\n[   97.287815] Call trace:\n[   97.288279]  dump_backtrace+0xa0/0x128\n[   97.288946]  show_stack+0x20/0x38\n[   97.289551]  dump_stack_lvl+0x78/0xc8\n[   97.290203]  print_address_description.constprop.0+0x84/0x3c8\n[   97.291159]  print_report+0xb0/0x280\n[   97.291792]  kasan_report+0x84/0xd0\n[   97.292421]  __asan_load8+0x9c/0xc0\n[   97.293042]  regs_get_kernel_stack_nth+0xa8/0xc8\n[   97.293835]  process_fetch_insn+0x770/0xa30\n[   97.294562]  kprobe_trace_func+0x254/0x3b0\n[   97.295271]  kprobe_dispatcher+0x98/0xe0\n[   97.295955]  kprobe_breakpoint_handler+0x1b0/0x210\n[   97.296774]  call_break_hook+0xc4/0x100\n[   97.297451]  brk_handler+0x24/0x78\n[   97.298073]  do_debug_exception+0xac/0x178\n[   97.298785]  el1_dbg+0x70/0x90\n[   97.299344]  el1h_64_sync_handler+0xcc/0xe8\n[   97.300066]  el1h_64_sync+0x78/0x80\n[   97.300699]  kernel_clone+0x0/0x500\n[   97.301331]  __arm64_sys_clone+0x70/0x90\n[   97.302084]  invoke_syscall+0x68/0x198\n[   97.302746]  el0_svc_common.constprop.0+0x11c/0x150\n[   97.303569]  do_el0_svc+0x38/0x50\n[   97.304164]  el0_svc+0x44/0x1d8\n[   97.304749]  el0t_64_sync_handler+0x100/0x130\n[   97.305500]  el0t_64_sync+0x188/0x190\n[   97.306151]\n[   97.306475] The buggy address belongs to stack of task 1.sh/2550\n[   97.307461]  and is located at offset 0 in frame:\n[   97.308257]  __se_sys_clone+0x0/0x138\n[   97.308910]\n[   97.309241] This frame has 1 object:\n[   97.309873]  [48, 184) \u0027args\u0027\n[   97.309876]\n[   97.310749] The buggy address belongs to the virtual mapping at\n[   97.310749]  [ffff800089270000, ffff800089279000) created by:\n[   97.310749]  dup_task_struct+0xc0/0x2e8\n[   97.313347]\n[   97.313674] The buggy address belongs to the physical page:\n[   97.314604] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14f69a\n[   97.315885] flags: 0x15ffffe00000000(node=1|zone=2|lastcpupid=0xfffff)\n[   97.316957] raw: 015ffffe00000000 0000000000000000 dead000000000122 0000000000000000\n[   97.318207] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\n[   97.319445] page dumped because: kasan: bad access detected\n[   97.320371]\n[   97.320694] Memory state around the buggy address:\n[   97.321511]  ffff800089277b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[   97.322681]  ffff800089277b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[   97.323846] \u003effff800089277c00: 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00\n[   97.325023]                          ^\n[   97.325683]  ffff800089277c80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3\n[   97.326856]  ffff800089277d00: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\nThis issue seems to be related to the behavior of some gcc compilers and\nwas also fixed on the s390 architecture before:\n\n commit d93a855c31b7 (\"s390/ptrace: Avoid KASAN false positives in regs_get_kernel_stack_nth()\")\n\nAs described in that commit, regs_get_kernel_stack_nth() has confirmed that\n`addr` is on the stack, so reading the value at `*addr` should be allowed.\nUse READ_ONCE_NOCHECK() helper to silence the KASAN check for this case.\n\n[will: Use \u0027*addr\u0027 as the argument to READ_ONCE_NOCHECK()]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:25:42.232Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/64773b3ea09235168a549a195cba43bb867c4a17"
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        {
          "url": "https://git.kernel.org/stable/c/67abac27d806e8f9d4226ec1528540cf73af673a"
        },
        {
          "url": "https://git.kernel.org/stable/c/92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38"
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        {
          "url": "https://git.kernel.org/stable/c/01f91d415a8375d85e0c7d3615cd4a168308bb7c"
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        {
          "url": "https://git.kernel.org/stable/c/21da6d3561f373898349ca7167c9811c020da695"
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          "url": "https://git.kernel.org/stable/c/22f935bc86bdfbde04009f05eee191d220cd8c89"
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        {
          "url": "https://git.kernel.org/stable/c/422e565b7889ebfd9c8705a3fc786642afe61fca"
        },
        {
          "url": "https://git.kernel.org/stable/c/39dfc971e42d886e7df01371cd1bef505076d84c"
        }
      ],
      "title": "arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38320",
    "datePublished": "2025-07-10T08:14:56.398Z",
    "dateReserved": "2025-04-16T04:51:24.004Z",
    "dateUpdated": "2026-05-11T21:25:42.232Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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EUVD-2026-314539

CVE-2025-38320 (GCVE-0-2025-38320)

Tags

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Nomenclature

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