7.1
CVE-2021-47153
- EPSS 0.01%
- Veröffentlicht 25.03.2024 09:15:09
- Zuletzt bearbeitet 16.09.2025 16:24:46
- Quelle 416baaa9-dc9f-4396-8d5f-8c081f
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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.
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.6 < 4.4.271
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.271
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.235
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.193
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.124
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.42
Linux ≫ Linux Kernel Version >= 5.11 < 5.12.9
Linux ≫ Linux Kernel Version5.13 Updaterc1
Linux ≫ Linux Kernel Version5.13 Updaterc2
Linux ≫ Linux Kernel Version5.13 Updaterc3
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
Typ | Quelle | Score | Percentile |
---|---|---|---|
EPSS | FIRST.org | 0.01% | 0.003 |
Quelle | Base Score | Exploit Score | Impact Score | Vector String |
---|---|---|---|---|
nvd@nist.gov | 7.1 | 1.8 | 5.2 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 6 | 0.8 | 5.2 |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
|
CWE-125 Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.