CVE-2022-49341 (GCVE-0-2022-49341)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57
VLAI
Title
bpf, arm64: Clear prog->jited_len along prog->jited
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Clear prog->jited_len along prog->jited syzbot reported an illegal copy_to_user() attempt from bpf_prog_get_info_by_fd() [1] There was no repro yet on this bug, but I think that commit 0aef499f3172 ("mm/usercopy: Detect vmalloc overruns") is exposing a prior bug in bpf arm64. bpf_prog_get_info_by_fd() looks at prog->jited_len to determine if the JIT image can be copied out to user space. My theory is that syzbot managed to get a prog where prog->jited_len has been set to 43, while prog->bpf_func has ben cleared. It is not clear why copy_to_user(uinsns, NULL, ulen) is triggering this particular warning. I thought find_vma_area(NULL) would not find a vm_struct. As we do not hold vmap_area_lock spinlock, it might be possible that the found vm_struct was garbage. [1] usercopy: Kernel memory exposure attempt detected from vmalloc (offset 792633534417210172, size 43)! kernel BUG at mm/usercopy.c:101! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 25002 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-10139-g8291eaafed36 #0 Hardware name: linux,dummy-virt (DT) pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : usercopy_abort+0x90/0x94 mm/usercopy.c:101 lr : usercopy_abort+0x90/0x94 mm/usercopy.c:89 sp : ffff80000b773a20 x29: ffff80000b773a30 x28: faff80000b745000 x27: ffff80000b773b48 x26: 0000000000000000 x25: 000000000000002b x24: 0000000000000000 x23: 00000000000000e0 x22: ffff80000b75db67 x21: 0000000000000001 x20: 000000000000002b x19: ffff80000b75db3c x18: 00000000fffffffd x17: 2820636f6c6c616d x16: 76206d6f72662064 x15: 6574636574656420 x14: 74706d6574746120 x13: 2129333420657a69 x12: 73202c3237313031 x11: 3237313434333533 x10: 3336323937207465 x9 : 657275736f707865 x8 : ffff80000a30c550 x7 : ffff80000b773830 x6 : ffff80000b773830 x5 : 0000000000000000 x4 : ffff00007fbbaa10 x3 : 0000000000000000 x2 : 0000000000000000 x1 : f7ff000028fc0000 x0 : 0000000000000064 Call trace: usercopy_abort+0x90/0x94 mm/usercopy.c:89 check_heap_object mm/usercopy.c:186 [inline] __check_object_size mm/usercopy.c:252 [inline] __check_object_size+0x198/0x36c mm/usercopy.c:214 check_object_size include/linux/thread_info.h:199 [inline] check_copy_size include/linux/thread_info.h:235 [inline] copy_to_user include/linux/uaccess.h:159 [inline] bpf_prog_get_info_by_fd.isra.0+0xf14/0xfdc kernel/bpf/syscall.c:3993 bpf_obj_get_info_by_fd+0x12c/0x510 kernel/bpf/syscall.c:4253 __sys_bpf+0x900/0x2150 kernel/bpf/syscall.c:4956 __do_sys_bpf kernel/bpf/syscall.c:5021 [inline] __se_sys_bpf kernel/bpf/syscall.c:5019 [inline] __arm64_sys_bpf+0x28/0x40 kernel/bpf/syscall.c:5019 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142 do_el0_svc+0xa0/0xc0 arch/arm64/kernel/syscall.c:206 el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:624 el0t_64_sync_handler+0x1ac/0x1b0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581 Code: aa0003e3 d00038c0 91248000 97fff65f (d4210000)
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < aaf61a312af63e1cfe2264c4c5b8cd4ea3626025 (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < e412b3d178ea4bf746f6b8ee086761613704c6be (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < 0cf7aaff290cdc4d7cee683d4a18138b0dacac48 (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < 3f4d5e727aeaa610688d46c9f101f78b7f712583 (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < 5c25a3040bc0486c41a7b63a1fb0de7cdb846ad7 (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < 41f7c4f85d402043687e863627a1a84fa867c62d (git)
Affected: db496944fdaaf2a67d2f60529f5dc23abf809506 , < 10f3b29c65bb2fe0d47c2945cd0b4087be1c5218 (git)
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Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/net/bpf_jit_comp.c"
          ],
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          "vendor": "Linux",
          "versions": [
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          "product": "Linux",
          "programFiles": [
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          ],
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          "vendor": "Linux",
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              "version": "4.19.247",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.4.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.247",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.198",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.122",
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                {
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                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.15",
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, arm64: Clear prog-\u003ejited_len along prog-\u003ejited\n\nsyzbot reported an illegal copy_to_user() attempt\nfrom bpf_prog_get_info_by_fd() [1]\n\nThere was no repro yet on this bug, but I think\nthat commit 0aef499f3172 (\"mm/usercopy: Detect vmalloc overruns\")\nis exposing a prior bug in bpf arm64.\n\nbpf_prog_get_info_by_fd() looks at prog-\u003ejited_len\nto determine if the JIT image can be copied out to user space.\n\nMy theory is that syzbot managed to get a prog where prog-\u003ejited_len\nhas been set to 43, while prog-\u003ebpf_func has ben cleared.\n\nIt is not clear why copy_to_user(uinsns, NULL, ulen) is triggering\nthis particular warning.\n\nI thought find_vma_area(NULL) would not find a vm_struct.\nAs we do not hold vmap_area_lock spinlock, it might be possible\nthat the found vm_struct was garbage.\n\n[1]\nusercopy: Kernel memory exposure attempt detected from vmalloc (offset 792633534417210172, size 43)!\nkernel BUG at mm/usercopy.c:101!\nInternal error: Oops - BUG: 0 [#1] PREEMPT SMP\nModules linked in:\nCPU: 0 PID: 25002 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-10139-g8291eaafed36 #0\nHardware name: linux,dummy-virt (DT)\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : usercopy_abort+0x90/0x94 mm/usercopy.c:101\nlr : usercopy_abort+0x90/0x94 mm/usercopy.c:89\nsp : ffff80000b773a20\nx29: ffff80000b773a30 x28: faff80000b745000 x27: ffff80000b773b48\nx26: 0000000000000000 x25: 000000000000002b x24: 0000000000000000\nx23: 00000000000000e0 x22: ffff80000b75db67 x21: 0000000000000001\nx20: 000000000000002b x19: ffff80000b75db3c x18: 00000000fffffffd\nx17: 2820636f6c6c616d x16: 76206d6f72662064 x15: 6574636574656420\nx14: 74706d6574746120 x13: 2129333420657a69 x12: 73202c3237313031\nx11: 3237313434333533 x10: 3336323937207465 x9 : 657275736f707865\nx8 : ffff80000a30c550 x7 : ffff80000b773830 x6 : ffff80000b773830\nx5 : 0000000000000000 x4 : ffff00007fbbaa10 x3 : 0000000000000000\nx2 : 0000000000000000 x1 : f7ff000028fc0000 x0 : 0000000000000064\nCall trace:\n usercopy_abort+0x90/0x94 mm/usercopy.c:89\n check_heap_object mm/usercopy.c:186 [inline]\n __check_object_size mm/usercopy.c:252 [inline]\n __check_object_size+0x198/0x36c mm/usercopy.c:214\n check_object_size include/linux/thread_info.h:199 [inline]\n check_copy_size include/linux/thread_info.h:235 [inline]\n copy_to_user include/linux/uaccess.h:159 [inline]\n bpf_prog_get_info_by_fd.isra.0+0xf14/0xfdc kernel/bpf/syscall.c:3993\n bpf_obj_get_info_by_fd+0x12c/0x510 kernel/bpf/syscall.c:4253\n __sys_bpf+0x900/0x2150 kernel/bpf/syscall.c:4956\n __do_sys_bpf kernel/bpf/syscall.c:5021 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5019 [inline]\n __arm64_sys_bpf+0x28/0x40 kernel/bpf/syscall.c:5019\n __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]\n invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52\n el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142\n do_el0_svc+0xa0/0xc0 arch/arm64/kernel/syscall.c:206\n el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:624\n el0t_64_sync_handler+0x1ac/0x1b0 arch/arm64/kernel/entry-common.c:642\n el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581\nCode: aa0003e3 d00038c0 91248000 97fff65f (d4210000)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:57:49.472Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aaf61a312af63e1cfe2264c4c5b8cd4ea3626025"
        },
        {
          "url": "https://git.kernel.org/stable/c/e412b3d178ea4bf746f6b8ee086761613704c6be"
        },
        {
          "url": "https://git.kernel.org/stable/c/0cf7aaff290cdc4d7cee683d4a18138b0dacac48"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f4d5e727aeaa610688d46c9f101f78b7f712583"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c25a3040bc0486c41a7b63a1fb0de7cdb846ad7"
        },
        {
          "url": "https://git.kernel.org/stable/c/41f7c4f85d402043687e863627a1a84fa867c62d"
        },
        {
          "url": "https://git.kernel.org/stable/c/10f3b29c65bb2fe0d47c2945cd0b4087be1c5218"
        }
      ],
      "title": "bpf, arm64: Clear prog-\u003ejited_len along prog-\u003ejited",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49341",
    "datePublished": "2025-02-26T02:10:58.118Z",
    "dateReserved": "2025-02-26T02:08:31.541Z",
    "dateUpdated": "2026-05-11T18:57:49.472Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49341",
      "date": "2026-05-27",
      "epss": "0.00011",
      "percentile": "0.01394"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49341\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:10.857\",\"lastModified\":\"2025-10-21T12:18:14.827\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf, arm64: Clear prog-\u003ejited_len along prog-\u003ejited\\n\\nsyzbot reported an illegal copy_to_user() attempt\\nfrom bpf_prog_get_info_by_fd() [1]\\n\\nThere was no repro yet on this bug, but I think\\nthat commit 0aef499f3172 (\\\"mm/usercopy: Detect vmalloc overruns\\\")\\nis exposing a prior bug in bpf arm64.\\n\\nbpf_prog_get_info_by_fd() looks at prog-\u003ejited_len\\nto determine if the JIT image can be copied out to user space.\\n\\nMy theory is that syzbot managed to get a prog where prog-\u003ejited_len\\nhas been set to 43, while prog-\u003ebpf_func has ben cleared.\\n\\nIt is not clear why copy_to_user(uinsns, NULL, ulen) is triggering\\nthis particular warning.\\n\\nI thought find_vma_area(NULL) would not find a vm_struct.\\nAs we do not hold vmap_area_lock spinlock, it might be possible\\nthat the found vm_struct was garbage.\\n\\n[1]\\nusercopy: Kernel memory exposure attempt detected from vmalloc (offset 792633534417210172, size 43)!\\nkernel BUG at mm/usercopy.c:101!\\nInternal error: Oops - BUG: 0 [#1] PREEMPT SMP\\nModules linked in:\\nCPU: 0 PID: 25002 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-10139-g8291eaafed36 #0\\nHardware name: linux,dummy-virt (DT)\\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\npc : usercopy_abort+0x90/0x94 mm/usercopy.c:101\\nlr : usercopy_abort+0x90/0x94 mm/usercopy.c:89\\nsp : ffff80000b773a20\\nx29: ffff80000b773a30 x28: faff80000b745000 x27: ffff80000b773b48\\nx26: 0000000000000000 x25: 000000000000002b x24: 0000000000000000\\nx23: 00000000000000e0 x22: ffff80000b75db67 x21: 0000000000000001\\nx20: 000000000000002b x19: ffff80000b75db3c x18: 00000000fffffffd\\nx17: 2820636f6c6c616d x16: 76206d6f72662064 x15: 6574636574656420\\nx14: 74706d6574746120 x13: 2129333420657a69 x12: 73202c3237313031\\nx11: 3237313434333533 x10: 3336323937207465 x9 : 657275736f707865\\nx8 : ffff80000a30c550 x7 : ffff80000b773830 x6 : ffff80000b773830\\nx5 : 0000000000000000 x4 : ffff00007fbbaa10 x3 : 0000000000000000\\nx2 : 0000000000000000 x1 : f7ff000028fc0000 x0 : 0000000000000064\\nCall trace:\\n usercopy_abort+0x90/0x94 mm/usercopy.c:89\\n check_heap_object mm/usercopy.c:186 [inline]\\n __check_object_size mm/usercopy.c:252 [inline]\\n __check_object_size+0x198/0x36c mm/usercopy.c:214\\n check_object_size include/linux/thread_info.h:199 [inline]\\n check_copy_size include/linux/thread_info.h:235 [inline]\\n copy_to_user include/linux/uaccess.h:159 [inline]\\n bpf_prog_get_info_by_fd.isra.0+0xf14/0xfdc kernel/bpf/syscall.c:3993\\n bpf_obj_get_info_by_fd+0x12c/0x510 kernel/bpf/syscall.c:4253\\n __sys_bpf+0x900/0x2150 kernel/bpf/syscall.c:4956\\n __do_sys_bpf kernel/bpf/syscall.c:5021 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:5019 [inline]\\n __arm64_sys_bpf+0x28/0x40 kernel/bpf/syscall.c:5019\\n __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]\\n invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52\\n el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142\\n do_el0_svc+0xa0/0xc0 arch/arm64/kernel/syscall.c:206\\n el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:624\\n el0t_64_sync_handler+0x1ac/0x1b0 arch/arm64/kernel/entry-common.c:642\\n el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581\\nCode: aa0003e3 d00038c0 91248000 97fff65f (d4210000)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, arm64: Borrar prog-\u0026gt;jited_len junto con prog-\u0026gt;jited syzbot inform\u00f3 un intento ilegal de copy_to_user() desde bpf_prog_get_info_by_fd() [1] Todav\u00eda no hubo reproducci\u00f3n de este error, pero creo que el commit 0aef499f3172 (\\\"mm/usercopy: Detectar desbordamientos de vmalloc\\\") est\u00e1 exponiendo un error anterior en bpf arm64. bpf_prog_get_info_by_fd() analiza prog-\u0026gt;jited_len para determinar si la imagen JIT se puede copiar al espacio de usuario. Mi teor\u00eda es que syzbot logr\u00f3 obtener un programa donde prog-\u0026gt;jited_len se ha establecido en 43, mientras que prog-\u0026gt;bpf_func se ha borrado. No est\u00e1 claro por qu\u00e9 copy_to_user(uinsns, NULL, ulen) est\u00e1 activando esta advertencia en particular. Pens\u00e9 que find_vma_area(NULL) no encontrar\u00eda un vm_struct. Como no tenemos el bloqueo de giro vmap_area_lock, es posible que el vm_struct encontrado fuera basura. [1] usercopy: \u00a1Se detect\u00f3 un intento de exposici\u00f3n de memoria del kernel desde vmalloc (desplazamiento 792633534417210172, tama\u00f1o 43)! \u00a1ERROR del kernel en mm/usercopy.c:101! Error interno: Oops - BUG: 0 [#1] PREEMPT M\u00f3dulos SMP vinculados en: CPU: 0 PID: 25002 Comm: syz-executor.1 No contaminado 5.18.0-syzkaller-10139-g8291eaafed36 #0 Nombre del hardware: linux,dummy-virt (DT) pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : usercopy_abort+0x90/0x94 mm/usercopy.c:101 lr : usercopy_abort+0x90/0x94 mm/usercopy.c:89 sp : ffff80000b773a20 x29: ffff80000b773a30 x28: faff80000b745000 x27: ffff80000b773b48 x26: 0000000000000000 x25: 000000000000002b x24: 00000000000000000 x23: 00000000000000e0 x22: ffff80000b75db67 x21: 0000000000000001 x20: 000000000000002b x19: ffff80000b75db3c x18: 00000000fffffffd x17: 2820636f6c6c616d x16: 76206d6f72662064 x15: 6574636574656420 x14: 74706d6574746120 x13: 2129333420657a69 x12: 73202c3237313031 x11: 3237313434333533 x10: 3336323937207465 x9: 657275736f707865 x8: ffff80000a30c550 x7: ffff80000b773830 x6: ffff80000b773830 x5: 0000000000000000 x4 : ffff00007fbbaa10 x3 : 0000000000000000 x2 : 0000000000000000 x1 : f7ff000028fc0000 x0 : 00000000000000064 Rastreo de llamadas: usercopy_abort+0x90/0x94 mm/usercopy.c:89 check_heap_object mm/usercopy.c:186 [en l\u00ednea] __check_object_size mm/usercopy.c:252 [en l\u00ednea] __check_object_size+0x198/0x36c mm/usercopy.c:214 check_object_size include/linux/thread_info.h:199 [en l\u00ednea] check_copy_size include/linux/thread_info.h:235 [en l\u00ednea] copia_al_usuario include/linux/uaccess.h:159 [en l\u00ednea] bpf_prog_get_info_by_fd.isra.0+0xf14/0xfdc kernel/bpf/syscall.c:3993 bpf_obj_get_info_by_fd+0x12c/0x510 kernel/bpf/syscall.c:4253 __sys_bpf+0x900/0x2150 kernel/bpf/syscall.c:4956 __do_sys_bpf kernel/bpf/syscall.c:5021 [en l\u00ednea] __se_sys_bpf kernel/bpf/syscall.c:5019 [en l\u00ednea] __arm64_sys_bpf+0x28/0x40 kernel/bpf/syscall.c:5019 __invoke_syscall arch/arm64/kernel/syscall.c:38 [en l\u00ednea] invocar_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142 do_el0_svc+0xa0/0xc0 arch/arm64/kernel/syscall.c:206 el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:624 el0t_64_sync_handler+0x1ac/0x1b0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581 C\u00f3digo: aa0003e3 d00038c0 91248000 97fff65f (d4210000)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.16\",\"versionEndExcluding\":\"4.19.247\",\"matchCriteriaId\":\"669C3AF7-C77C-4A01-ABBF-9771B5BC5F88\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.198\",\"matchCriteriaId\":\"3EC49633-14DE-4EBD-BB80-76AE2E3EABB9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.122\",\"matchCriteriaId\":\"1B42AA01-44D8-4572-95E6-FF8E374CF9C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.47\",\"matchCriteriaId\":\"FC042EE3-4864-4325-BE0B-4BCDBF11AA61\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.15\",\"matchCriteriaId\":\"53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"5.18.4\",\"matchCriteriaId\":\"FA6D643C-6D6A-4821-8A8D-B5776B8F0103\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8C30C2D-F82D-4D37-AB48-D76ABFBD5377\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0cf7aaff290cdc4d7cee683d4a18138b0dacac48\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/10f3b29c65bb2fe0d47c2945cd0b4087be1c5218\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3f4d5e727aeaa610688d46c9f101f78b7f712583\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/41f7c4f85d402043687e863627a1a84fa867c62d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5c25a3040bc0486c41a7b63a1fb0de7cdb846ad7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aaf61a312af63e1cfe2264c4c5b8cd4ea3626025\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e412b3d178ea4bf746f6b8ee086761613704c6be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Detection rules are retrieved from Rulezet.