CVE-2022-49287 (GCVE-0-2022-49287)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2025-05-04 08:34
VLAI?
Title
tpm: fix reference counting for struct tpm_chip
Summary
In the Linux kernel, the following vulnerability has been resolved: tpm: fix reference counting for struct tpm_chip The following sequence of operations results in a refcount warning: 1. Open device /dev/tpmrm. 2. Remove module tpm_tis_spi. 3. Write a TPM command to the file descriptor opened at step 1. ------------[ cut here ]------------ WARNING: CPU: 3 PID: 1161 at lib/refcount.c:25 kobject_get+0xa0/0xa4 refcount_t: addition on 0; use-after-free. Modules linked in: tpm_tis_spi tpm_tis_core tpm mdio_bcm_unimac brcmfmac sha256_generic libsha256 sha256_arm hci_uart btbcm bluetooth cfg80211 vc4 brcmutil ecdh_generic ecc snd_soc_core crc32_arm_ce libaes raspberrypi_hwmon ac97_bus snd_pcm_dmaengine bcm2711_thermal snd_pcm snd_timer genet snd phy_generic soundcore [last unloaded: spi_bcm2835] CPU: 3 PID: 1161 Comm: hold_open Not tainted 5.10.0ls-main-dirty #2 Hardware name: BCM2711 [<c0410c3c>] (unwind_backtrace) from [<c040b580>] (show_stack+0x10/0x14) [<c040b580>] (show_stack) from [<c1092174>] (dump_stack+0xc4/0xd8) [<c1092174>] (dump_stack) from [<c0445a30>] (__warn+0x104/0x108) [<c0445a30>] (__warn) from [<c0445aa8>] (warn_slowpath_fmt+0x74/0xb8) [<c0445aa8>] (warn_slowpath_fmt) from [<c08435d0>] (kobject_get+0xa0/0xa4) [<c08435d0>] (kobject_get) from [<bf0a715c>] (tpm_try_get_ops+0x14/0x54 [tpm]) [<bf0a715c>] (tpm_try_get_ops [tpm]) from [<bf0a7d6c>] (tpm_common_write+0x38/0x60 [tpm]) [<bf0a7d6c>] (tpm_common_write [tpm]) from [<c05a7ac0>] (vfs_write+0xc4/0x3c0) [<c05a7ac0>] (vfs_write) from [<c05a7ee4>] (ksys_write+0x58/0xcc) [<c05a7ee4>] (ksys_write) from [<c04001a0>] (ret_fast_syscall+0x0/0x4c) Exception stack(0xc226bfa8 to 0xc226bff0) bfa0: 00000000 000105b4 00000003 beafe664 00000014 00000000 bfc0: 00000000 000105b4 000103f8 00000004 00000000 00000000 b6f9c000 beafe684 bfe0: 0000006c beafe648 0001056c b6eb6944 ---[ end trace d4b8409def9b8b1f ]--- The reason for this warning is the attempt to get the chip->dev reference in tpm_common_write() although the reference counter is already zero. Since commit 8979b02aaf1d ("tpm: Fix reference count to main device") the extra reference used to prevent a premature zero counter is never taken, because the required TPM_CHIP_FLAG_TPM2 flag is never set. Fix this by moving the TPM 2 character device handling from tpm_chip_alloc() to tpm_add_char_device() which is called at a later point in time when the flag has been set in case of TPM2. Commit fdc915f7f719 ("tpm: expose spaces via a device link /dev/tpmrm<n>") already introduced function tpm_devs_release() to release the extra reference but did not implement the required put on chip->devs that results in the call of this function. Fix this by putting chip->devs in tpm_chip_unregister(). Finally move the new implementation for the TPM 2 handling into a new function to avoid multiple checks for the TPM_CHIP_FLAG_TPM2 flag in the good case and error cases.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 473a66f99cb8173c14138c5a5c69bfad04e8f9ac (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < cb64bd038beacb4331fe464a36c8b5481e8f51e2 (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < a27ed2f3695baf15f9b34d2d7a1f9fc105539a81 (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 290e05f346d1829e849662c97e42d5ad984f5258 (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 662893b4f6bd466ff9e1cd454c44c26d32d554fe (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 2f928c0d5c02dbab49e8c19d98725c822f6fc409 (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 6e7baf84149fb43950631415de231b3a41915aa3 (git)
Affected: fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66 , < 7e0438f83dc769465ee663bb5dcf8cc154940712 (git)
Create a notification for this product.
    Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.1 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: fix reference counting for struct tpm_chip\n\nThe following sequence of operations results in a refcount warning:\n\n1. Open device /dev/tpmrm.\n2. Remove module tpm_tis_spi.\n3. Write a TPM command to the file descriptor opened at step 1.\n\n------------[ cut here ]------------\nWARNING: CPU: 3 PID: 1161 at lib/refcount.c:25 kobject_get+0xa0/0xa4\nrefcount_t: addition on 0; use-after-free.\nModules linked in: tpm_tis_spi tpm_tis_core tpm mdio_bcm_unimac brcmfmac\nsha256_generic libsha256 sha256_arm hci_uart btbcm bluetooth cfg80211 vc4\nbrcmutil ecdh_generic ecc snd_soc_core crc32_arm_ce libaes\nraspberrypi_hwmon ac97_bus snd_pcm_dmaengine bcm2711_thermal snd_pcm\nsnd_timer genet snd phy_generic soundcore [last unloaded: spi_bcm2835]\nCPU: 3 PID: 1161 Comm: hold_open Not tainted 5.10.0ls-main-dirty #2\nHardware name: BCM2711\n[\u003cc0410c3c\u003e] (unwind_backtrace) from [\u003cc040b580\u003e] (show_stack+0x10/0x14)\n[\u003cc040b580\u003e] (show_stack) from [\u003cc1092174\u003e] (dump_stack+0xc4/0xd8)\n[\u003cc1092174\u003e] (dump_stack) from [\u003cc0445a30\u003e] (__warn+0x104/0x108)\n[\u003cc0445a30\u003e] (__warn) from [\u003cc0445aa8\u003e] (warn_slowpath_fmt+0x74/0xb8)\n[\u003cc0445aa8\u003e] (warn_slowpath_fmt) from [\u003cc08435d0\u003e] (kobject_get+0xa0/0xa4)\n[\u003cc08435d0\u003e] (kobject_get) from [\u003cbf0a715c\u003e] (tpm_try_get_ops+0x14/0x54 [tpm])\n[\u003cbf0a715c\u003e] (tpm_try_get_ops [tpm]) from [\u003cbf0a7d6c\u003e] (tpm_common_write+0x38/0x60 [tpm])\n[\u003cbf0a7d6c\u003e] (tpm_common_write [tpm]) from [\u003cc05a7ac0\u003e] (vfs_write+0xc4/0x3c0)\n[\u003cc05a7ac0\u003e] (vfs_write) from [\u003cc05a7ee4\u003e] (ksys_write+0x58/0xcc)\n[\u003cc05a7ee4\u003e] (ksys_write) from [\u003cc04001a0\u003e] (ret_fast_syscall+0x0/0x4c)\nException stack(0xc226bfa8 to 0xc226bff0)\nbfa0:                   00000000 000105b4 00000003 beafe664 00000014 00000000\nbfc0: 00000000 000105b4 000103f8 00000004 00000000 00000000 b6f9c000 beafe684\nbfe0: 0000006c beafe648 0001056c b6eb6944\n---[ end trace d4b8409def9b8b1f ]---\n\nThe reason for this warning is the attempt to get the chip-\u003edev reference\nin tpm_common_write() although the reference counter is already zero.\n\nSince commit 8979b02aaf1d (\"tpm: Fix reference count to main device\") the\nextra reference used to prevent a premature zero counter is never taken,\nbecause the required TPM_CHIP_FLAG_TPM2 flag is never set.\n\nFix this by moving the TPM 2 character device handling from\ntpm_chip_alloc() to tpm_add_char_device() which is called at a later point\nin time when the flag has been set in case of TPM2.\n\nCommit fdc915f7f719 (\"tpm: expose spaces via a device link /dev/tpmrm\u003cn\u003e\")\nalready introduced function tpm_devs_release() to release the extra\nreference but did not implement the required put on chip-\u003edevs that results\nin the call of this function.\n\nFix this by putting chip-\u003edevs in tpm_chip_unregister().\n\nFinally move the new implementation for the TPM 2 handling into a new\nfunction to avoid multiple checks for the TPM_CHIP_FLAG_TPM2 flag in the\ngood case and error cases."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:34:17.839Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/473a66f99cb8173c14138c5a5c69bfad04e8f9ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb64bd038beacb4331fe464a36c8b5481e8f51e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/a27ed2f3695baf15f9b34d2d7a1f9fc105539a81"
        },
        {
          "url": "https://git.kernel.org/stable/c/290e05f346d1829e849662c97e42d5ad984f5258"
        },
        {
          "url": "https://git.kernel.org/stable/c/662893b4f6bd466ff9e1cd454c44c26d32d554fe"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f928c0d5c02dbab49e8c19d98725c822f6fc409"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e7baf84149fb43950631415de231b3a41915aa3"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e0438f83dc769465ee663bb5dcf8cc154940712"
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      ],
      "title": "tpm: fix reference counting for struct tpm_chip",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49287",
    "datePublished": "2025-02-26T01:56:26.059Z",
    "dateReserved": "2025-02-26T01:49:39.302Z",
    "dateUpdated": "2025-05-04T08:34:17.839Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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\"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-27T18:16:52.692Z\"}}], \"cna\": {\"title\": \"tpm: fix reference counting for struct tpm_chip\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"473a66f99cb8173c14138c5a5c69bfad04e8f9ac\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"cb64bd038beacb4331fe464a36c8b5481e8f51e2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"a27ed2f3695baf15f9b34d2d7a1f9fc105539a81\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"290e05f346d1829e849662c97e42d5ad984f5258\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"662893b4f6bd466ff9e1cd454c44c26d32d554fe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"2f928c0d5c02dbab49e8c19d98725c822f6fc409\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"6e7baf84149fb43950631415de231b3a41915aa3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdc915f7f71939ad5a3dda3389b8d2d7a7c5ee66\", \"lessThan\": \"7e0438f83dc769465ee663bb5dcf8cc154940712\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/char/tpm/tpm-chip.c\", \"drivers/char/tpm/tpm.h\", \"drivers/char/tpm/tpm2-space.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.238\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.189\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.1\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/char/tpm/tpm-chip.c\", \"drivers/char/tpm/tpm.h\", \"drivers/char/tpm/tpm2-space.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/473a66f99cb8173c14138c5a5c69bfad04e8f9ac\"}, {\"url\": \"https://git.kernel.org/stable/c/cb64bd038beacb4331fe464a36c8b5481e8f51e2\"}, {\"url\": \"https://git.kernel.org/stable/c/a27ed2f3695baf15f9b34d2d7a1f9fc105539a81\"}, {\"url\": \"https://git.kernel.org/stable/c/290e05f346d1829e849662c97e42d5ad984f5258\"}, {\"url\": \"https://git.kernel.org/stable/c/662893b4f6bd466ff9e1cd454c44c26d32d554fe\"}, {\"url\": \"https://git.kernel.org/stable/c/2f928c0d5c02dbab49e8c19d98725c822f6fc409\"}, {\"url\": \"https://git.kernel.org/stable/c/6e7baf84149fb43950631415de231b3a41915aa3\"}, {\"url\": \"https://git.kernel.org/stable/c/7e0438f83dc769465ee663bb5dcf8cc154940712\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntpm: fix reference counting for struct tpm_chip\\n\\nThe following sequence of operations results in a refcount warning:\\n\\n1. Open device /dev/tpmrm.\\n2. Remove module tpm_tis_spi.\\n3. Write a TPM command to the file descriptor opened at step 1.\\n\\n------------[ cut here ]------------\\nWARNING: CPU: 3 PID: 1161 at lib/refcount.c:25 kobject_get+0xa0/0xa4\\nrefcount_t: addition on 0; use-after-free.\\nModules linked in: tpm_tis_spi tpm_tis_core tpm mdio_bcm_unimac brcmfmac\\nsha256_generic libsha256 sha256_arm hci_uart btbcm bluetooth cfg80211 vc4\\nbrcmutil ecdh_generic ecc snd_soc_core crc32_arm_ce libaes\\nraspberrypi_hwmon ac97_bus snd_pcm_dmaengine bcm2711_thermal snd_pcm\\nsnd_timer genet snd phy_generic soundcore [last unloaded: spi_bcm2835]\\nCPU: 3 PID: 1161 Comm: hold_open Not tainted 5.10.0ls-main-dirty #2\\nHardware name: BCM2711\\n[\u003cc0410c3c\u003e] (unwind_backtrace) from [\u003cc040b580\u003e] (show_stack+0x10/0x14)\\n[\u003cc040b580\u003e] (show_stack) from [\u003cc1092174\u003e] (dump_stack+0xc4/0xd8)\\n[\u003cc1092174\u003e] (dump_stack) from [\u003cc0445a30\u003e] (__warn+0x104/0x108)\\n[\u003cc0445a30\u003e] (__warn) from [\u003cc0445aa8\u003e] (warn_slowpath_fmt+0x74/0xb8)\\n[\u003cc0445aa8\u003e] (warn_slowpath_fmt) from [\u003cc08435d0\u003e] (kobject_get+0xa0/0xa4)\\n[\u003cc08435d0\u003e] (kobject_get) from [\u003cbf0a715c\u003e] (tpm_try_get_ops+0x14/0x54 [tpm])\\n[\u003cbf0a715c\u003e] (tpm_try_get_ops [tpm]) from [\u003cbf0a7d6c\u003e] (tpm_common_write+0x38/0x60 [tpm])\\n[\u003cbf0a7d6c\u003e] (tpm_common_write [tpm]) from [\u003cc05a7ac0\u003e] (vfs_write+0xc4/0x3c0)\\n[\u003cc05a7ac0\u003e] (vfs_write) from [\u003cc05a7ee4\u003e] (ksys_write+0x58/0xcc)\\n[\u003cc05a7ee4\u003e] (ksys_write) from [\u003cc04001a0\u003e] (ret_fast_syscall+0x0/0x4c)\\nException stack(0xc226bfa8 to 0xc226bff0)\\nbfa0:                   00000000 000105b4 00000003 beafe664 00000014 00000000\\nbfc0: 00000000 000105b4 000103f8 00000004 00000000 00000000 b6f9c000 beafe684\\nbfe0: 0000006c beafe648 0001056c b6eb6944\\n---[ end trace d4b8409def9b8b1f ]---\\n\\nThe reason for this warning is the attempt to get the chip-\u003edev reference\\nin tpm_common_write() although the reference counter is already zero.\\n\\nSince commit 8979b02aaf1d (\\\"tpm: Fix reference count to main device\\\") the\\nextra reference used to prevent a premature zero counter is never taken,\\nbecause the required TPM_CHIP_FLAG_TPM2 flag is never set.\\n\\nFix this by moving the TPM 2 character device handling from\\ntpm_chip_alloc() to tpm_add_char_device() which is called at a later point\\nin time when the flag has been set in case of TPM2.\\n\\nCommit fdc915f7f719 (\\\"tpm: expose spaces via a device link /dev/tpmrm\u003cn\u003e\\\")\\nalready introduced function tpm_devs_release() to release the extra\\nreference but did not implement the required put on chip-\u003edevs that results\\nin the call of this function.\\n\\nFix this by putting chip-\u003edevs in tpm_chip_unregister().\\n\\nFinally move the new implementation for the TPM 2 handling into a new\\nfunction to avoid multiple checks for the TPM_CHIP_FLAG_TPM2 flag in the\\ngood case and error cases.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.276\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.238\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.189\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.110\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.33\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.19\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.1\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"4.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:34:17.839Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49287\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:34:17.839Z\", \"dateReserved\": \"2025-02-26T01:49:39.302Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:56:26.059Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.