GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-49945 (GCVE-0-2022-49945)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-05-11 19:09
VLAI
Title
hwmon: (gpio-fan) Fix array out of bounds access
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (gpio-fan) Fix array out of bounds access The driver does not check if the cooling state passed to gpio_fan_set_cur_state() exceeds the maximum cooling state as stored in fan_data->num_speeds. Since the cooling state is later used as an array index in set_fan_speed(), an array out of bounds access can occur. This can be exploited by setting the state of the thermal cooling device to arbitrary values, causing for example a kernel oops when unavailable memory is accessed this way. Example kernel oops: [ 807.987276] Unable to handle kernel paging request at virtual address ffffff80d0588064 [ 807.987369] Mem abort info: [ 807.987398] ESR = 0x96000005 [ 807.987428] EC = 0x25: DABT (current EL), IL = 32 bits [ 807.987477] SET = 0, FnV = 0 [ 807.987507] EA = 0, S1PTW = 0 [ 807.987536] FSC = 0x05: level 1 translation fault [ 807.987570] Data abort info: [ 807.987763] ISV = 0, ISS = 0x00000005 [ 807.987801] CM = 0, WnR = 0 [ 807.987832] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000001165000 [ 807.987872] [ffffff80d0588064] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 807.987961] Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 807.987992] Modules linked in: cmac algif_hash aes_arm64 algif_skcipher af_alg bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc snd_soc_hdmi_codec brcmfmac vc4 brcmutil cec drm_kms_helper snd_soc_core cfg80211 snd_compress bcm2835_codec(C) snd_pcm_dmaengine syscopyarea bcm2835_isp(C) bcm2835_v4l2(C) sysfillrect v4l2_mem2mem bcm2835_mmal_vchiq(C) raspberrypi_hwmon sysimgblt videobuf2_dma_contig videobuf2_vmalloc fb_sys_fops videobuf2_memops rfkill videobuf2_v4l2 videobuf2_common i2c_bcm2835 snd_bcm2835(C) videodev snd_pcm snd_timer snd mc vc_sm_cma(C) gpio_fan uio_pdrv_genirq uio drm fuse drm_panel_orientation_quirks backlight ip_tables x_tables ipv6 [ 807.988508] CPU: 0 PID: 1321 Comm: bash Tainted: G C 5.15.56-v8+ #1575 [ 807.988548] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT) [ 807.988574] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 807.988608] pc : set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.988654] lr : gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.988691] sp : ffffffc008cf3bd0 [ 807.988710] x29: ffffffc008cf3bd0 x28: ffffff80019edac0 x27: 0000000000000000 [ 807.988762] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800747c920 [ 807.988787] x23: 000000000000000a x22: ffffff800369f000 x21: 000000001999997c [ 807.988854] x20: ffffff800369f2e8 x19: ffffff8002ae8080 x18: 0000000000000000 [ 807.988877] x17: 0000000000000000 x16: 0000000000000000 x15: 000000559e271b70 [ 807.988938] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 807.988960] x11: 0000000000000000 x10: ffffffc008cf3c20 x9 : ffffffcfb60c741c [ 807.989018] x8 : 000000000000000a x7 : 00000000ffffffc9 x6 : 0000000000000009 [ 807.989040] x5 : 000000000000002a x4 : 0000000000000000 x3 : ffffff800369f2e8 [ 807.989062] x2 : 000000000000e780 x1 : 0000000000000001 x0 : ffffff80d0588060 [ 807.989084] Call trace: [ 807.989091] set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.989113] gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.989199] cur_state_store+0x84/0xd0 [ 807.989221] dev_attr_store+0x20/0x38 [ 807.989262] sysfs_kf_write+0x4c/0x60 [ 807.989282] kernfs_fop_write_iter+0x130/0x1c0 [ 807.989298] new_sync_write+0x10c/0x190 [ 807.989315] vfs_write+0x254/0x378 [ 807.989362] ksys_write+0x70/0xf8 [ 807.989379] __arm64_sys_write+0x24/0x30 [ 807.989424] invoke_syscall+0x4c/0x110 [ 807.989442] el0_svc_common.constprop.3+0xfc/0x120 [ 807.989458] do_el0_svc+0x2c/0x90 [ 807.989473] el0_svc+0x24/0x60 [ 807.989544] el0t_64_sync_handler+0x90/0xb8 [ 807.989558] el0t_64_sync+0x1a0/0x1a4 [ 807.989579] Code: b9403801 f9402800 7100003f 8b35cc00 (b9400416) [ 807.989627] ---[ end t ---truncated---
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b5cf88e46badea6d600d8515edea23814e03444d , < e9f6972ab40a82bd7f6d36800792ba2e084474d8 (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < 3ff866455e1e263a9ac1958095fd440984248e2f (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < c8ae6a18708f260ccdeef6ba53af7548457dc26c (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < 7756eb1ed124753f4d64f761fc3d84290dffcb4d (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < 517dba798793e69b510779c3cde7224a65f3ed1d (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < 53196e0376205ed49b75bfd0475af5e0fbd20156 (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < 3263984c7acdcb0658155b05a724ed45a10de76d (git)
Affected: b5cf88e46badea6d600d8515edea23814e03444d , < f233d2be38dbbb22299192292983037f01ab363c (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.1
Unaffected: 0 , < 4.1 (semver)
Unaffected: 4.9.328 , ≤ 4.9.* (semver)
Unaffected: 4.14.293 , ≤ 4.14.* (semver)
Unaffected: 4.19.258 , ≤ 4.19.* (semver)
Unaffected: 5.4.213 , ≤ 5.4.* (semver)
Unaffected: 5.10.142 , ≤ 5.10.* (semver)
Unaffected: 5.15.66 , ≤ 5.15.* (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/gpio-fan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e9f6972ab40a82bd7f6d36800792ba2e084474d8",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "3ff866455e1e263a9ac1958095fd440984248e2f",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "c8ae6a18708f260ccdeef6ba53af7548457dc26c",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "7756eb1ed124753f4d64f761fc3d84290dffcb4d",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "517dba798793e69b510779c3cde7224a65f3ed1d",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "53196e0376205ed49b75bfd0475af5e0fbd20156",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "3263984c7acdcb0658155b05a724ed45a10de76d",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            },
            {
              "lessThan": "f233d2be38dbbb22299192292983037f01ab363c",
              "status": "affected",
              "version": "b5cf88e46badea6d600d8515edea23814e03444d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/gpio-fan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.1"
            },
            {
              "lessThan": "4.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.328",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.293",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.213",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.66",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.328",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.293",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.258",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.213",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.142",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.66",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (gpio-fan) Fix array out of bounds access\n\nThe driver does not check if the cooling state passed to\ngpio_fan_set_cur_state() exceeds the maximum cooling state as\nstored in fan_data-\u003enum_speeds. Since the cooling state is later\nused as an array index in set_fan_speed(), an array out of bounds\naccess can occur.\nThis can be exploited by setting the state of the thermal cooling device\nto arbitrary values, causing for example a kernel oops when unavailable\nmemory is accessed this way.\n\nExample kernel oops:\n[  807.987276] Unable to handle kernel paging request at virtual address ffffff80d0588064\n[  807.987369] Mem abort info:\n[  807.987398]   ESR = 0x96000005\n[  807.987428]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  807.987477]   SET = 0, FnV = 0\n[  807.987507]   EA = 0, S1PTW = 0\n[  807.987536]   FSC = 0x05: level 1 translation fault\n[  807.987570] Data abort info:\n[  807.987763]   ISV = 0, ISS = 0x00000005\n[  807.987801]   CM = 0, WnR = 0\n[  807.987832] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000001165000\n[  807.987872] [ffffff80d0588064] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n[  807.987961] Internal error: Oops: 96000005 [#1] PREEMPT SMP\n[  807.987992] Modules linked in: cmac algif_hash aes_arm64 algif_skcipher af_alg bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc snd_soc_hdmi_codec brcmfmac vc4 brcmutil cec drm_kms_helper snd_soc_core cfg80211 snd_compress bcm2835_codec(C) snd_pcm_dmaengine syscopyarea bcm2835_isp(C) bcm2835_v4l2(C) sysfillrect v4l2_mem2mem bcm2835_mmal_vchiq(C) raspberrypi_hwmon sysimgblt videobuf2_dma_contig videobuf2_vmalloc fb_sys_fops videobuf2_memops rfkill videobuf2_v4l2 videobuf2_common i2c_bcm2835 snd_bcm2835(C) videodev snd_pcm snd_timer snd mc vc_sm_cma(C) gpio_fan uio_pdrv_genirq uio drm fuse drm_panel_orientation_quirks backlight ip_tables x_tables ipv6\n[  807.988508] CPU: 0 PID: 1321 Comm: bash Tainted: G         C        5.15.56-v8+ #1575\n[  807.988548] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)\n[  807.988574] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  807.988608] pc : set_fan_speed.part.5+0x34/0x80 [gpio_fan]\n[  807.988654] lr : gpio_fan_set_cur_state+0x34/0x50 [gpio_fan]\n[  807.988691] sp : ffffffc008cf3bd0\n[  807.988710] x29: ffffffc008cf3bd0 x28: ffffff80019edac0 x27: 0000000000000000\n[  807.988762] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800747c920\n[  807.988787] x23: 000000000000000a x22: ffffff800369f000 x21: 000000001999997c\n[  807.988854] x20: ffffff800369f2e8 x19: ffffff8002ae8080 x18: 0000000000000000\n[  807.988877] x17: 0000000000000000 x16: 0000000000000000 x15: 000000559e271b70\n[  807.988938] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[  807.988960] x11: 0000000000000000 x10: ffffffc008cf3c20 x9 : ffffffcfb60c741c\n[  807.989018] x8 : 000000000000000a x7 : 00000000ffffffc9 x6 : 0000000000000009\n[  807.989040] x5 : 000000000000002a x4 : 0000000000000000 x3 : ffffff800369f2e8\n[  807.989062] x2 : 000000000000e780 x1 : 0000000000000001 x0 : ffffff80d0588060\n[  807.989084] Call trace:\n[  807.989091]  set_fan_speed.part.5+0x34/0x80 [gpio_fan]\n[  807.989113]  gpio_fan_set_cur_state+0x34/0x50 [gpio_fan]\n[  807.989199]  cur_state_store+0x84/0xd0\n[  807.989221]  dev_attr_store+0x20/0x38\n[  807.989262]  sysfs_kf_write+0x4c/0x60\n[  807.989282]  kernfs_fop_write_iter+0x130/0x1c0\n[  807.989298]  new_sync_write+0x10c/0x190\n[  807.989315]  vfs_write+0x254/0x378\n[  807.989362]  ksys_write+0x70/0xf8\n[  807.989379]  __arm64_sys_write+0x24/0x30\n[  807.989424]  invoke_syscall+0x4c/0x110\n[  807.989442]  el0_svc_common.constprop.3+0xfc/0x120\n[  807.989458]  do_el0_svc+0x2c/0x90\n[  807.989473]  el0_svc+0x24/0x60\n[  807.989544]  el0t_64_sync_handler+0x90/0xb8\n[  807.989558]  el0t_64_sync+0x1a0/0x1a4\n[  807.989579] Code: b9403801 f9402800 7100003f 8b35cc00 (b9400416)\n[  807.989627] ---[ end t\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:09:42.968Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e9f6972ab40a82bd7f6d36800792ba2e084474d8"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ff866455e1e263a9ac1958095fd440984248e2f"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8ae6a18708f260ccdeef6ba53af7548457dc26c"
        },
        {
          "url": "https://git.kernel.org/stable/c/7756eb1ed124753f4d64f761fc3d84290dffcb4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/517dba798793e69b510779c3cde7224a65f3ed1d"
        },
        {
          "url": "https://git.kernel.org/stable/c/53196e0376205ed49b75bfd0475af5e0fbd20156"
        },
        {
          "url": "https://git.kernel.org/stable/c/3263984c7acdcb0658155b05a724ed45a10de76d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f233d2be38dbbb22299192292983037f01ab363c"
        }
      ],
      "title": "hwmon: (gpio-fan) Fix array out of bounds access",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49945",
    "datePublished": "2025-06-18T11:00:01.037Z",
    "dateReserved": "2025-06-18T10:57:27.381Z",
    "dateUpdated": "2026-05-11T19:09:42.968Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49945",
      "date": "2026-09-19",
      "epss": "0.00233",
      "percentile": "0.14431"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/hwmon/gpio-fan.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "e9f6972ab40a82bd7f6d36800792ba2e084474d8",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3ff866455e1e263a9ac1958095fd440984248e2f",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "c8ae6a18708f260ccdeef6ba53af7548457dc26c",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7756eb1ed124753f4d64f761fc3d84290dffcb4d",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "517dba798793e69b510779c3cde7224a65f3ed1d",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "53196e0376205ed49b75bfd0475af5e0fbd20156",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3263984c7acdcb0658155b05a724ed45a10de76d",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f233d2be38dbbb22299192292983037f01ab363c",
                    "status": "affected",
                    "version": "b5cf88e46badea6d600d8515edea23814e03444d",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/hwmon/gpio-fan.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.1"
                  },
                  {
                    "lessThan": "4.1",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.9.*",
                    "status": "unaffected",
                    "version": "4.9.328",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.14.*",
                    "status": "unaffected",
                    "version": "4.14.293",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.258",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.213",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.142",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.66",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.19.*",
                    "status": "unaffected",
                    "version": "5.19.8",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1F266D3A-4CBD-4444-9876-90CF9BBFC9CB",
                    "versionEndExcluding": "4.9.328",
                    "versionStartIncluding": "4.1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5D9B742D-912D-4E0C-A42F-367086FDEA88",
                    "versionEndExcluding": "4.14.293",
                    "versionStartIncluding": "4.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "253D30F5-3734-4663-883A-288786D3B66E",
                    "versionEndExcluding": "4.19.258",
                    "versionStartIncluding": "4.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4C373116-9E23-44BA-A6B7-87C8BF5C3B85",
                    "versionEndExcluding": "5.4.213",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D44AD643-5591-432E-BD41-C2C737F54AC0",
                    "versionEndExcluding": "5.10.142",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "52AE7E2B-7BE3-4B8A-89CC-AB62434899A3",
                    "versionEndExcluding": "5.15.66",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7FEC7656-4CE2-424C-8830-EDB160E701C8",
                    "versionEndExcluding": "5.19.8",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (gpio-fan) Fix array out of bounds access\n\nThe driver does not check if the cooling state passed to\ngpio_fan_set_cur_state() exceeds the maximum cooling state as\nstored in fan_data-\u003enum_speeds. Since the cooling state is later\nused as an array index in set_fan_speed(), an array out of bounds\naccess can occur.\nThis can be exploited by setting the state of the thermal cooling device\nto arbitrary values, causing for example a kernel oops when unavailable\nmemory is accessed this way.\n\nExample kernel oops:\n[  807.987276] Unable to handle kernel paging request at virtual address ffffff80d0588064\n[  807.987369] Mem abort info:\n[  807.987398]   ESR = 0x96000005\n[  807.987428]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  807.987477]   SET = 0, FnV = 0\n[  807.987507]   EA = 0, S1PTW = 0\n[  807.987536]   FSC = 0x05: level 1 translation fault\n[  807.987570] Data abort info:\n[  807.987763]   ISV = 0, ISS = 0x00000005\n[  807.987801]   CM = 0, WnR = 0\n[  807.987832] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000001165000\n[  807.987872] [ffffff80d0588064] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n[  807.987961] Internal error: Oops: 96000005 [#1] PREEMPT SMP\n[  807.987992] Modules linked in: cmac algif_hash aes_arm64 algif_skcipher af_alg bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc snd_soc_hdmi_codec brcmfmac vc4 brcmutil cec drm_kms_helper snd_soc_core cfg80211 snd_compress bcm2835_codec(C) snd_pcm_dmaengine syscopyarea bcm2835_isp(C) bcm2835_v4l2(C) sysfillrect v4l2_mem2mem bcm2835_mmal_vchiq(C) raspberrypi_hwmon sysimgblt videobuf2_dma_contig videobuf2_vmalloc fb_sys_fops videobuf2_memops rfkill videobuf2_v4l2 videobuf2_common i2c_bcm2835 snd_bcm2835(C) videodev snd_pcm snd_timer snd mc vc_sm_cma(C) gpio_fan uio_pdrv_genirq uio drm fuse drm_panel_orientation_quirks backlight ip_tables x_tables ipv6\n[  807.988508] CPU: 0 PID: 1321 Comm: bash Tainted: G         C        5.15.56-v8+ #1575\n[  807.988548] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)\n[  807.988574] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  807.988608] pc : set_fan_speed.part.5+0x34/0x80 [gpio_fan]\n[  807.988654] lr : gpio_fan_set_cur_state+0x34/0x50 [gpio_fan]\n[  807.988691] sp : ffffffc008cf3bd0\n[  807.988710] x29: ffffffc008cf3bd0 x28: ffffff80019edac0 x27: 0000000000000000\n[  807.988762] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800747c920\n[  807.988787] x23: 000000000000000a x22: ffffff800369f000 x21: 000000001999997c\n[  807.988854] x20: ffffff800369f2e8 x19: ffffff8002ae8080 x18: 0000000000000000\n[  807.988877] x17: 0000000000000000 x16: 0000000000000000 x15: 000000559e271b70\n[  807.988938] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[  807.988960] x11: 0000000000000000 x10: ffffffc008cf3c20 x9 : ffffffcfb60c741c\n[  807.989018] x8 : 000000000000000a x7 : 00000000ffffffc9 x6 : 0000000000000009\n[  807.989040] x5 : 000000000000002a x4 : 0000000000000000 x3 : ffffff800369f2e8\n[  807.989062] x2 : 000000000000e780 x1 : 0000000000000001 x0 : ffffff80d0588060\n[  807.989084] Call trace:\n[  807.989091]  set_fan_speed.part.5+0x34/0x80 [gpio_fan]\n[  807.989113]  gpio_fan_set_cur_state+0x34/0x50 [gpio_fan]\n[  807.989199]  cur_state_store+0x84/0xd0\n[  807.989221]  dev_attr_store+0x20/0x38\n[  807.989262]  sysfs_kf_write+0x4c/0x60\n[  807.989282]  kernfs_fop_write_iter+0x130/0x1c0\n[  807.989298]  new_sync_write+0x10c/0x190\n[  807.989315]  vfs_write+0x254/0x378\n[  807.989362]  ksys_write+0x70/0xf8\n[  807.989379]  __arm64_sys_write+0x24/0x30\n[  807.989424]  invoke_syscall+0x4c/0x110\n[  807.989442]  el0_svc_common.constprop.3+0xfc/0x120\n[  807.989458]  do_el0_svc+0x2c/0x90\n[  807.989473]  el0_svc+0x24/0x60\n[  807.989544]  el0t_64_sync_handler+0x90/0xb8\n[  807.989558]  el0t_64_sync+0x1a0/0x1a4\n[  807.989579] Code: b9403801 f9402800 7100003f 8b35cc00 (b9400416)\n[  807.989627] ---[ end t\n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hwmon: (gpio-fan) Correcci\u00f3n de acceso fuera de los l\u00edmites a una matriz. El controlador no comprueba si el estado de refrigeraci\u00f3n transferido a gpio_fan_set_cur_state() supera el estado de refrigeraci\u00f3n m\u00e1ximo almacenado en fan_data-\u0026gt;num_speeds. Dado que el estado de refrigeraci\u00f3n se utiliza posteriormente como \u00edndice de matriz en set_fan_speed(), puede producirse un acceso fuera de los l\u00edmites a una matriz. Esto se puede explotar configurando el estado del dispositivo de refrigeraci\u00f3n t\u00e9rmica con valores arbitrarios, lo que provoca, por ejemplo, un error en el kernel al acceder a memoria no disponible de esta forma. Ejemplo de error de kernel: [807.987276] No se puede manejar la solicitud de paginaci\u00f3n del kernel en la direcci\u00f3n virtual ffffff80d0588064 [807.987369] Informaci\u00f3n de aborto de memoria: [807.987398] ESR = 0x96000005 [807.987428] EC = 0x25: DABT (EL actual), IL = 32 bits [807.987477] SET = 0, FnV = 0 [807.987507] EA = 0, S1PTW = 0 [807.987536] FSC = 0x05: error de traducci\u00f3n de nivel 1 [807.987570] Informaci\u00f3n de aborto de datos: [ 807.987398] ESR = 0x96000005 [ 807.987428] EC = 0x25: DABT (current EL), IL = 32 bits [ 807.987477] SET = 0, FnV = 0 [ 807.987507] EA = 0, S1PTW = 0 [ 807.987536] FSC = 0x05: level 1 translation fault [ 807.987570] Data abort info: [ 807.987763] ISV = 0, ISS = 0x00000005 [ 807.987801] CM = 0, WnR = 0 [ 807.987832] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000001165000 [ 807.987872] [ffffff80d0588064] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 807.987961] Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 807.987992] Modules linked in: cmac algif_hash aes_arm64 algif_skcipher af_alg bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc snd_soc_hdmi_codec brcmfmac vc4 brcmutil cec drm_kms_helper snd_soc_core cfg80211 snd_compress bcm2835_codec(C) snd_pcm_dmaengine syscopyarea bcm2835_isp(C) bcm2835_v4l2(C) sysfillrect v4l2_mem2mem bcm2835_mmal_vchiq(C) raspberrypi_hwmon sysimgblt videobuf2_dma_contig videobuf2_vmalloc fb_sys_fops videobuf2_memops rfkill videobuf2_v4l2 videobuf2_common i2c_bcm2835 snd_bcm2835(C) videodev snd_pcm snd_timer snd mc vc_sm_cma(C) gpio_fan uio_pdrv_genirq uio drm fuse drm_panel_orientation_quirks backlight ip_tables x_tables ipv6 [ 807.988508] CPU: 0 PID: 1321 Comm: bash Tainted: G C 5.15.56-v8+ #1575 [ 807.988548] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT) [ 807.988574] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 807.988608] pc : set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.988654] lr : gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.988691] sp : ffffffc008cf3bd0 [ 807.988710] x29: ffffffc008cf3bd0 x28: ffffff80019edac0 x27: 0000000000000000 [ 807.988762] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800747c920 [ 807.988787] x23: 000000000000000a x22: ffffff800369f000 x21: 000000001999997c [ 807.988854] x20: ffffff800369f2e8 x19: ffffff8002ae8080 x18: 0000000000000000 [ 807.988877] x17: 0000000000000000 x16: 0000000000000000 x15: 000000559e271b70 [ 807.988938] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 807.988960] x11: 0000000000000000 x10: ffffffc008cf3c20 x9 : ffffffcfb60c741c [ 807.989018] x8 : 000000000000000a x7 : 00000000ffffffc9 x6 : 0000000000000009 [ 807.989040] x5 : 000000000000002a x4 : 0000000000000000 x3 : ffffff800369f2e8 [ 807.989062] x2 : 000000000000e780 x1 : 0000000000000001 x0 : ffffff80d0588060 [ 807.989084] Call trace: [ 807.989091] set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.989113] gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.989199] cur_state_store+0x84/0xd0 [ 807.989221] dev_attr_store+0x20/0x38 [ 807.989262] sysfs_kf_write+0x4c/0x60 [ 807.989282] kernfs_fop_write_iter+0x130/0x1c0 [ 807.989298] new_sync_write+0x10c/0x190 [ 807.989315] vfs_write+0x254/0x378 [ 807.989362] ksys_write+0x70/0xf8 [ 807.989379] __arm64_sys_write+0x24/0x30 [ 807.989424] invoke_syscall+0x4c/0x110 [ 807.989442] ---truncado---"
          }
        ],
        "id": "CVE-2022-49945",
        "lastModified": "2026-06-17T05:19:35.510",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.2,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T11:15:21.483",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3263984c7acdcb0658155b05a724ed45a10de76d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3ff866455e1e263a9ac1958095fd440984248e2f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/517dba798793e69b510779c3cde7224a65f3ed1d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/53196e0376205ed49b75bfd0475af5e0fbd20156"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7756eb1ed124753f4d64f761fc3d84290dffcb4d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c8ae6a18708f260ccdeef6ba53af7548457dc26c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e9f6972ab40a82bd7f6d36800792ba2e084474d8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f233d2be38dbbb22299192292983037f01ab363c"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:20:37+00:00",
      "cve": "CVE-2022-49945",
      "id": "CVE-2022-49945",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: hwmon: (gpio-fan) Fix array out of bounds access",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49945.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T02:02:16Z",
      "cve": "CVE-2022-49945",
      "id": "CVE-2022-49945",
      "initial_release_date": "2025-06-19T03:45:54Z",
      "product_status:known_affected": "491",
      "product_status:known_not_affected": "239",
      "product_status:recommended": "273",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49945",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49945.json",
      "version": "44"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.