{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26703"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\n\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\nif the user program open() and close() the file without reading.\n\nHere\u0027s an example:\n\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\n\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\n # !/usr/bin/env python3\n\n timerlat_fd = open(\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\", \u0027r\u0027)\n timerlat_fd.close();\n EOF\n\n # ./taskset -c 0 ./timerlat_load.py\n\u003cBOOM\u003e\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\n RIP: 0010:hrtimer_active+0xd/0x50\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\n FS:  00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x23/0x70\n  ? page_fault_oops+0x171/0x4e0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? avc_has_extended_perms+0x237/0x520\n  ? exc_page_fault+0x7f/0x180\n  ? asm_exc_page_fault+0x26/0x30\n  ? hrtimer_active+0xd/0x50\n  hrtimer_cancel+0x15/0x40\n  timerlat_fd_release+0x48/0xe0\n  __fput+0xf5/0x290\n  __x64_sys_close+0x3d/0x80\n  do_syscall_64+0x60/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? __x64_sys_ioctl+0x72/0xd0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? exit_to_user_mode_prepare+0x142/0x1f0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n RIP: 0033:0x7f2ffb321594\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\n  \u003c/TASK\u003e\n CR2: 0000000000000010\n ---[ end trace 0000000000000000 ]---\n\nMove hrtimer_init to timerlat_fd open() to avoid this problem.",
      "id": "GSD-2024-26703",
      "modified": "2024-02-20T06:02:29.208986Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2024-26703",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "e88ed227f639",
                          "version_value": "5f703935fdb5"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "status": "affected",
                                "version": "6.5"
                              },
                              {
                                "lessThan": "6.5",
                                "status": "unaffected",
                                "version": "0",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.6.*",
                                "status": "unaffected",
                                "version": "6.6.18",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.7.*",
                                "status": "unaffected",
                                "version": "6.7.6",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "6.8",
                                "versionType": "original_commit_for_fix"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Linux"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\n\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\nif the user program open() and close() the file without reading.\n\nHere\u0027s an example:\n\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\n\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\n # !/usr/bin/env python3\n\n timerlat_fd = open(\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\", \u0027r\u0027)\n timerlat_fd.close();\n EOF\n\n # ./taskset -c 0 ./timerlat_load.py\n\u003cBOOM\u003e\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\n RIP: 0010:hrtimer_active+0xd/0x50\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\n FS:  00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x23/0x70\n  ? page_fault_oops+0x171/0x4e0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? avc_has_extended_perms+0x237/0x520\n  ? exc_page_fault+0x7f/0x180\n  ? asm_exc_page_fault+0x26/0x30\n  ? hrtimer_active+0xd/0x50\n  hrtimer_cancel+0x15/0x40\n  timerlat_fd_release+0x48/0xe0\n  __fput+0xf5/0x290\n  __x64_sys_close+0x3d/0x80\n  do_syscall_64+0x60/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? __x64_sys_ioctl+0x72/0xd0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? exit_to_user_mode_prepare+0x142/0x1f0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n RIP: 0033:0x7f2ffb321594\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\n  \u003c/TASK\u003e\n CR2: 0000000000000010\n ---[ end trace 0000000000000000 ]---\n\nMove hrtimer_init to timerlat_fd open() to avoid this problem."
          }
        ]
      },
      "generator": {
        "engine": "bippy-d3b290d2becc"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d"
          },
          {
            "name": "https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b"
          },
          {
            "name": "https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\n\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\nif the user program open() and close() the file without reading.\n\nHere\u0027s an example:\n\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\n\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\n # !/usr/bin/env python3\n\n timerlat_fd = open(\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\", \u0027r\u0027)\n timerlat_fd.close();\n EOF\n\n # ./taskset -c 0 ./timerlat_load.py\n\u003cBOOM\u003e\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\n RIP: 0010:hrtimer_active+0xd/0x50\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\n FS:  00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x23/0x70\n  ? page_fault_oops+0x171/0x4e0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? avc_has_extended_perms+0x237/0x520\n  ? exc_page_fault+0x7f/0x180\n  ? asm_exc_page_fault+0x26/0x30\n  ? hrtimer_active+0xd/0x50\n  hrtimer_cancel+0x15/0x40\n  timerlat_fd_release+0x48/0xe0\n  __fput+0xf5/0x290\n  __x64_sys_close+0x3d/0x80\n  do_syscall_64+0x60/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? __x64_sys_ioctl+0x72/0xd0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? exit_to_user_mode_prepare+0x142/0x1f0\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? syscall_exit_to_user_mode+0x2b/0x40\n  ? srso_alias_return_thunk+0x5/0x7f\n  ? do_syscall_64+0x6c/0x90\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n RIP: 0033:0x7f2ffb321594\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\n  \u003c/TASK\u003e\n CR2: 0000000000000010\n ---[ end trace 0000000000000000 ]---\n\nMove hrtimer_init to timerlat_fd open() to avoid this problem."
          }
        ],
        "id": "CVE-2024-26703",
        "lastModified": "2024-04-03T17:24:18.150",
        "metrics": {},
        "published": "2024-04-03T15:15:53.140",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}