CVE-2021-47056 - Vulnerability Details

Vendors	Products
Linux	Linux Kernel

Link	Providers
https://git.kernel.org/stable/c/05ec8192ee4bfdf2a8894a68350dac9f1a155fa6
https://git.kernel.org/stable/c/09d16cee6285d37cc76311c29add6d97a7e4acda
https://git.kernel.org/stable/c/1ea500ce6f7c9106e4a561d28e69215f3d451818
https://git.kernel.org/stable/c/1f50392650ae794a1aea41c213c6a3e1c824413c
https://git.kernel.org/stable/c/20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1
https://git.kernel.org/stable/c/446045cf682af12d9294765f6c46084b374b5654
https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446
https://git.kernel.org/stable/c/f4c4e07140687f42bfa40e091bb4a55d7960ce4d
https://lore.kernel.org/linux-cve-announce/2024022950-CVE-2021-47056-c2b3@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-47056
https://www.cve.org/CVERecord?id=CVE-2021-47056

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
Weaknesses		CWE-908
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Show plain JSON

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Show plain JSON

{"bugzilla": {"description": "kernel: crypto: denial-of-service in ADF_STATUS_PF_RUNNING should be set after adf_dev_init", "id": "2267183", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267183"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncrypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init\nADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown()\nbefore calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the\nvf2pf_lock is initialized in adf_dev_init(), which can fail and when it\nfail, the vf2pf_lock is either not initialized or destroyed, a subsequent\nuse of vf2pf_lock will cause issue.\nTo fix this issue, only set this flag if adf_dev_init() returns 0.\n[    7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0\n[    7.180345] Call Trace:\n[    7.182576]  mutex_lock+0xc9/0xd0\n[    7.183257]  adf_iov_putmsg+0x118/0x1a0 [intel_qat]\n[    7.183541]  adf_vf2pf_shutdown+0x4d/0x7b [intel_qat]\n[    7.183834]  adf_dev_shutdown+0x172/0x2b0 [intel_qat]\n[    7.184127]  adf_probe+0x5e9/0x600 [qat_dh895xccvf]"], "name": "CVE-2021-47056", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47056\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47056\nhttps://lore.kernel.org/linux-cve-announce/2024022950-CVE-2021-47056-c2b3@gregkh/T/#u"], "threat_severity": "Low"}

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cwe : CWE-413 (string)

details : [ »

0 : In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf] (string)

]

name : CVE-2021-47056 (string)

package_state : [ »

0 : { »

cpe : cpe:/o:redhat:enterprise_linux:6 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 6 (string)

}

1 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

2 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

3 : { »

cpe : cpe:/o:redhat:enterprise_linux:8 (string)

fix_state : Not affected (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 8 (string)

}

4 : { »

cpe : cpe:/o:redhat:enterprise_linux:8 (string)

fix_state : Not affected (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 8 (string)

}

5 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

6 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

]

public_date : 2024-02-29T00:00:00Z (string)

references : [ »

0 : https://www.cve.org/CVERecord?id=CVE-2021-47056 https://nvd.nist.gov/vuln/detail/CVE-2021-47056 https://lore.kernel.org/linux-cve-announce/2024022950-CVE-2021-47056-c2b3@gregkh/T/#u (string)

]

threat_severity : Low (string)

}

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

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