CVE-2021-47153 (GCVE-0-2021-47153)
Vulnerability from cvelistv5 – Published: 2024-03-25 09:07 – Updated: 2026-08-05 08:46
VLAI
EPSS
VEX
Title
i2c: i801: Don't generate an interrupt on bus reset
Summary
In the Linux kernel, the following vulnerability has been resolved:
i2c: i801: Don't generate an interrupt on bus reset
Now that the i2c-i801 driver supports interrupts, setting the KILL bit
in a attempt to recover from a timed out transaction triggers an
interrupt. Unfortunately, the interrupt handler (i801_isr) is not
prepared for this situation and will try to process the interrupt as
if it was signaling the end of a successful transaction. In the case
of a block transaction, this can result in an out-of-range memory
access.
This condition was reproduced several times by syzbot:
https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e
https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e
https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e
https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb
https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a
https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79
So disable interrupts while trying to reset the bus. Interrupts will
be enabled again for the following transaction.
Severity
7.8 (High)
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-25 19:20 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
636752bcb5177a301d0266270661581de8624828 , < f9469082126cebb7337db3992d143f5e4edfe629
(git)
Affected: 636752bcb5177a301d0266270661581de8624828 , < 09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3 (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < dfa8929e117b0228a7765f5c3f5988a4a028f3c6 (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < c70e1ba2e7e65255a0ce004f531dd90dada97a8c (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < 04cc05e3716ae31b17ecdab7bc55c8170def1b8b (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < b523feb7e8e44652f92f3babb953a976e7ccbbef (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < 1f583d3813f204449037cd2acbfc09168171362a (git) Affected: 636752bcb5177a301d0266270661581de8624828 , < e4d8716c3dcec47f1557024add24e1f3c09eb24b (git) |
guessed | |
| Linux | Linux |
Affected:
3.6
Unaffected: 0 , < 3.6 (semver) Unaffected: 4.4.271 , ≤ 4.4.* (semver) Unaffected: 4.9.271 , ≤ 4.9.* (semver) Unaffected: 4.14.235 , ≤ 4.14.* (semver) Unaffected: 4.19.193 , ≤ 4.19.* (semver) Unaffected: 5.4.124 , ≤ 5.4.* (semver) Unaffected: 5.10.42 , ≤ 5.10.* (semver) Unaffected: 5.12.9 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-47153",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-03-25T19:20:15.941507Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-11-05T16:55:32.968Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:24:39.990Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/i2c/busses/i2c-i801.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f9469082126cebb7337db3992d143f5e4edfe629",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "dfa8929e117b0228a7765f5c3f5988a4a028f3c6",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "c70e1ba2e7e65255a0ce004f531dd90dada97a8c",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "04cc05e3716ae31b17ecdab7bc55c8170def1b8b",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "b523feb7e8e44652f92f3babb953a976e7ccbbef",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "1f583d3813f204449037cd2acbfc09168171362a",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
},
{
"lessThan": "e4d8716c3dcec47f1557024add24e1f3c09eb24b",
"status": "affected",
"version": "636752bcb5177a301d0266270661581de8624828",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/i2c/busses/i2c-i801.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.6"
},
{
"lessThan": "3.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.271",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.271",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.235",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.193",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.124",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"version": "5.12.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.4.271",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.271",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.235",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.193",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.124",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.42",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.12.9",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.13",
"versionStartIncluding": "3.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: i801: Don\u0027t generate an interrupt on bus reset\n\nNow that the i2c-i801 driver supports interrupts, setting the KILL bit\nin a attempt to recover from a timed out transaction triggers an\ninterrupt. Unfortunately, the interrupt handler (i801_isr) is not\nprepared for this situation and will try to process the interrupt as\nif it was signaling the end of a successful transaction. In the case\nof a block transaction, this can result in an out-of-range memory\naccess.\n\nThis condition was reproduced several times by syzbot:\nhttps://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e\nhttps://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e\nhttps://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e\nhttps://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb\nhttps://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a\nhttps://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79\n\nSo disable interrupts while trying to reset the bus. Interrupts will\nbe enabled again for the following transaction."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable path is reached locally via /dev/i2c-* I2C_SMBUS ioctls into i801_access \u2192 i801_block_transaction_byte_by_byte \u2192 i801_check_post; it is not reachable from network packet processing or physical SMBus injection.\nAC:L - An attacker who can open the adapter can issue block SMBus transactions and force wait_event_timeout to expire (including via I2C_TIMEOUT), reliably hitting the KILL path that leaves INTREN set; syzbot reproduced this repeatedly with no attacker-uncontrollable race required.\nPR:L - i2cdev_open() performs no capability check\u2014access is only DAC on /dev/i2c-*. On realistic worst-case deployments (i2c group or similarly relaxed permissions on developer/embedded/x86 systems with Intel PCH SMBus), a non-root local user can reach the path.\nUI:N - The attacker opens the device and issues the ioctls themselves; no separate victim action is required.\nS:U - Impact is ordinary in-kernel stack/memory corruption within the host kernel authority, not a VM escape, IOMMU bypass, or other cross-boundary breakout.\nC:H - The ISR performs out-of-range accesses on the block buffer (KASAN OOB reads) and related crashes show use-after-free of that buffer; this class of memory corruption is scored as enabling high confidentiality impact under the higher-severity rule.\nI:H - Syzbot also hit out-of-bounds/use-after-free writes in i801_isr_byte_done for the same root cause (KILL-generated interrupt while INTREN remains set), giving stack/heap corruption exploitable for control-flow hijacking.\nA:H - The memory-safety failure reliably produces kernel oops/KASAN reports and can panic the system, which is Availability High under kernel CVSS guidance."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T08:46:21.812Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629"
},
{
"url": "https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3"
},
{
"url": "https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6"
},
{
"url": "https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c"
},
{
"url": "https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b"
},
{
"url": "https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef"
},
{
"url": "https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a"
},
{
"url": "https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b"
}
],
"title": "i2c: i801: Don\u0027t generate an interrupt on bus reset",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47153",
"datePublished": "2024-03-25T09:07:47.873Z",
"dateReserved": "2024-03-04T18:12:48.846Z",
"dateUpdated": "2026-08-05T08:46:21.812Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-47153",
"date": "2026-09-16",
"epss": "0.00231",
"percentile": "0.14056"
},
"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ni2c: i801: Don\u0027t generate an interrupt on bus reset\\n\\nNow that the i2c-i801 driver supports interrupts, setting the KILL bit\\nin a attempt to recover from a timed out transaction triggers an\\ninterrupt. Unfortunately, the interrupt handler (i801_isr) is not\\nprepared for this situation and will try to process the interrupt as\\nif it was signaling the end of a successful transaction. In the case\\nof a block transaction, this can result in an out-of-range memory\\naccess.\\n\\nThis condition was reproduced several times by syzbot:\\nhttps://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e\\nhttps://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e\\nhttps://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e\\nhttps://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb\\nhttps://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a\\nhttps://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79\\n\\nSo disable interrupts while trying to reset the bus. Interrupts will\\nbe enabled again for the following transaction.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: i801: no genera una interrupci\\u00f3n al restablecer el bus Ahora que el controlador i2c-i801 admite interrupciones, configurar el bit KILL en un intento de recuperarse de una transacci\\u00f3n con tiempo de espera agotado se activa una interrupci\\u00f3n. Desafortunadamente, el controlador de interrupciones (i801_isr) no est\\u00e1 preparado para esta situaci\\u00f3n e intentar\\u00e1 procesar la interrupci\\u00f3n como si estuviera indicando el final de una transacci\\u00f3n exitosa. En el caso de una transacci\\u00f3n en bloque, esto puede resultar en un acceso a la memoria fuera de rango. Esta condici\\u00f3n fue reproducida varias veces por syzbot: https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e https://syzkaller.appspot.com/bug ?extid=c8ff0b6d6c73d81b610e https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a https://syzkaller.appspot.com/bug?extid=b 4d3fd1dfd53e90afd79 Entonces deshabilite las interrupciones al intentar restablecer el bus. Las interrupciones se habilitar\\u00e1n nuevamente para la siguiente transacci\\u00f3n.\"}]",
"id": "CVE-2021-47153",
"lastModified": "2024-11-21T06:35:30.260",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H\", \"baseScore\": 6.0, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 0.8, \"impactScore\": 5.2}]}",
"published": "2024-03-25T09:15:09.407",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-47153\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-25T09:15:09.407\",\"lastModified\":\"2026-08-04T10:16:49.113\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ni2c: i801: Don\u0027t generate an interrupt on bus reset\\n\\nNow that the i2c-i801 driver supports interrupts, setting the KILL bit\\nin a attempt to recover from a timed out transaction triggers an\\ninterrupt. Unfortunately, the interrupt handler (i801_isr) is not\\nprepared for this situation and will try to process the interrupt as\\nif it was signaling the end of a successful transaction. In the case\\nof a block transaction, this can result in an out-of-range memory\\naccess.\\n\\nThis condition was reproduced several times by syzbot:\\nhttps://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e\\nhttps://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e\\nhttps://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e\\nhttps://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb\\nhttps://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a\\nhttps://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79\\n\\nSo disable interrupts while trying to reset the bus. Interrupts will\\nbe enabled again for the following transaction.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: i801: no genera una interrupci\u00f3n al restablecer el bus Ahora que el controlador i2c-i801 admite interrupciones, configurar el bit KILL en un intento de recuperarse de una transacci\u00f3n con tiempo de espera agotado se activa una interrupci\u00f3n. Desafortunadamente, el controlador de interrupciones (i801_isr) no est\u00e1 preparado para esta situaci\u00f3n e intentar\u00e1 procesar la interrupci\u00f3n como si estuviera indicando el final de una transacci\u00f3n exitosa. En el caso de una transacci\u00f3n en bloque, esto puede resultar en un acceso a la memoria fuera de rango. Esta condici\u00f3n fue reproducida varias veces por syzbot: https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e https://syzkaller.appspot.com/bug ?extid=c8ff0b6d6c73d81b610e https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a https://syzkaller.appspot.com/bug?extid=b 4d3fd1dfd53e90afd79 Entonces deshabilite las interrupciones al intentar restablecer el bus. Las interrupciones se habilitar\u00e1n nuevamente para la siguiente transacci\u00f3n.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/i2c/busses/i2c-i801.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"f9469082126cebb7337db3992d143f5e4edfe629\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"dfa8929e117b0228a7765f5c3f5988a4a028f3c6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"c70e1ba2e7e65255a0ce004f531dd90dada97a8c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"04cc05e3716ae31b17ecdab7bc55c8170def1b8b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"b523feb7e8e44652f92f3babb953a976e7ccbbef\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"1f583d3813f204449037cd2acbfc09168171362a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"636752bcb5177a301d0266270661581de8624828\",\"lessThan\":\"e4d8716c3dcec47f1557024add24e1f3c09eb24b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/i2c/busses/i2c-i801.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.6\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.6\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.4.271\",\"lessThanOrEqual\":\"4.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.271\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.235\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.193\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.124\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.42\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.12.9\",\"lessThanOrEqual\":\"5.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.13\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":6.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-03-25T19:20:15.941507Z\",\"id\":\"CVE-2021-47153\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.6\",\"versionEndExcluding\":\"4.4.271\",\"matchCriteriaId\":\"82783C0A-C700-455C-B9CD-06360F8275DA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.271\",\"matchCriteriaId\":\"1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.235\",\"matchCriteriaId\":\"03A23445-0C1A-42AB-AC5C-768360DDF32C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.193\",\"matchCriteriaId\":\"C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.124\",\"matchCriteriaId\":\"06FE0F99-F7A9-462A-8355-30E2EDA9826B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.42\",\"matchCriteriaId\":\"C3E7E799-1C8A-45FB-9E07-4731996144C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.9\",\"matchCriteriaId\":\"2C8A1D02-81A7-44E5-ACFD-CC6A6694F930\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA610E30-717C-4700-9F77-A3C9244F3BFD\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-08-04T23:04:56+00:00",
"cve": "CVE-2021-47153",
"id": "CVE-2021-47153",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:fixed": "150",
"product_status:known_affected": "42",
"product_status:known_not_affected": "108",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: i2c: i801: Don\u0026#39;t generate an interrupt on bus reset",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47153.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-13T23:56:51Z",
"cve": "CVE-2021-47153",
"id": "CVE-2021-47153",
"initial_release_date": "2024-03-27T04:26:00Z",
"product_status:known_affected": "521",
"product_status:known_not_affected": "202",
"product_status:recommended": "255",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-47153",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47153.json",
"version": "64"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.990Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47153\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-25T19:20:15.941507Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:19.485Z\"}}], \"cna\": {\"title\": \"i2c: i801: Don\u0027t generate an interrupt on bus reset\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The vulnerable path is reached locally via /dev/i2c-* I2C_SMBUS ioctls into i801_access \\u2192 i801_block_transaction_byte_by_byte \\u2192 i801_check_post; it is not reachable from network packet processing or physical SMBus injection.\\nAC:L - An attacker who can open the adapter can issue block SMBus transactions and force wait_event_timeout to expire (including via I2C_TIMEOUT), reliably hitting the KILL path that leaves INTREN set; syzbot reproduced this repeatedly with no attacker-uncontrollable race required.\\nPR:L - i2cdev_open() performs no capability check\\u2014access is only DAC on /dev/i2c-*. On realistic worst-case deployments (i2c group or similarly relaxed permissions on developer/embedded/x86 systems with Intel PCH SMBus), a non-root local user can reach the path.\\nUI:N - The attacker opens the device and issues the ioctls themselves; no separate victim action is required.\\nS:U - Impact is ordinary in-kernel stack/memory corruption within the host kernel authority, not a VM escape, IOMMU bypass, or other cross-boundary breakout.\\nC:H - The ISR performs out-of-range accesses on the block buffer (KASAN OOB reads) and related crashes show use-after-free of that buffer; this class of memory corruption is scored as enabling high confidentiality impact under the higher-severity rule.\\nI:H - Syzbot also hit out-of-bounds/use-after-free writes in i801_isr_byte_done for the same root cause (KILL-generated interrupt while INTREN remains set), giving stack/heap corruption exploitable for control-flow hijacking.\\nA:H - The memory-safety failure reliably produces kernel oops/KASAN reports and can panic the system, which is Availability High under kernel CVSS guidance.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"f9469082126cebb7337db3992d143f5e4edfe629\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"dfa8929e117b0228a7765f5c3f5988a4a028f3c6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"c70e1ba2e7e65255a0ce004f531dd90dada97a8c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"04cc05e3716ae31b17ecdab7bc55c8170def1b8b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"b523feb7e8e44652f92f3babb953a976e7ccbbef\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"1f583d3813f204449037cd2acbfc09168171362a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"636752bcb5177a301d0266270661581de8624828\", \"lessThan\": \"e4d8716c3dcec47f1557024add24e1f3c09eb24b\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/i2c/busses/i2c-i801.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.6\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.6\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.271\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.271\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.235\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.193\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.124\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.42\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/i2c/busses/i2c-i801.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629\"}, {\"url\": \"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3\"}, {\"url\": \"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6\"}, {\"url\": \"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c\"}, {\"url\": \"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b\"}, {\"url\": \"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef\"}, {\"url\": \"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a\"}, {\"url\": \"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ni2c: i801: Don\u0027t generate an interrupt on bus reset\\n\\nNow that the i2c-i801 driver supports interrupts, setting the KILL bit\\nin a attempt to recover from a timed out transaction triggers an\\ninterrupt. Unfortunately, the interrupt handler (i801_isr) is not\\nprepared for this situation and will try to process the interrupt as\\nif it was signaling the end of a successful transaction. In the case\\nof a block transaction, this can result in an out-of-range memory\\naccess.\\n\\nThis condition was reproduced several times by syzbot:\\nhttps://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e\\nhttps://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e\\nhttps://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e\\nhttps://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb\\nhttps://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a\\nhttps://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79\\n\\nSo disable interrupts while trying to reset the bus. Interrupts will\\nbe enabled again for the following transaction.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.4.271\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.271\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.235\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.193\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.124\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.42\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.9\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"3.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T08:46:21.812Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-47153\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T08:46:21.812Z\", \"dateReserved\": \"2024-03-04T18:12:48.846Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:07:47.873Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
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.
Loading…