UBUNTU-CVE-2024-56683
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hdmi: Avoid hang with debug registers when suspended Trying to read /sys/kernel/debug/dri/1/hdmi1_regs when the hdmi is disconnected results in a fatal system hang. This is due to the pm suspend code disabling the dvp clock. That is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG, which results in accesses hanging AXI bus. Protect against this.
02 / AFFECTED SOFTWARE
Affected packages
16 explicit affected versions
2 explicit affected versions
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29 explicit affected versions
10 explicit affected versions
11 explicit affected versions
15 explicit affected versions
1 explicit affected versions
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18 explicit affected versions
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26 explicit affected versions
37 explicit affected versions
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78 explicit affected versions
45 explicit affected versions
37 explicit affected versions
8 explicit affected versions
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16 explicit affected versions
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1 explicit affected versions
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10 explicit affected versions
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6 explicit affected versions
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12 explicit affected versions
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20 explicit affected versions
12 explicit affected versions
26 explicit affected versions
1 explicit affected versions
16 explicit affected versions
23 explicit affected versions
7 explicit affected versions
13 explicit affected versions
14 explicit affected versions
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3 explicit affected versions
23 explicit affected versions
26 explicit affected versions
21 explicit affected versions
12 explicit affected versions
44 explicit affected versions
21 explicit affected versions
4 explicit affected versions
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16 explicit affected versions
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7 explicit affected versions
19 explicit affected versions
13 explicit affected versions
26 explicit affected versions
21 explicit affected versions
8 explicit affected versions
7 explicit affected versions
13 explicit affected versions
7 explicit affected versions
10 explicit affected versions
14 explicit affected versions
25 explicit affected versions
12 explicit affected versions
18 explicit affected versions
24 explicit affected versions
3 explicit affected versions
16 explicit affected versions
19 explicit affected versions
43 explicit affected versions
11 explicit affected versions
35 explicit affected versions
12 explicit affected versions
13 explicit affected versions
6 explicit affected versions
12 explicit affected versions
1 explicit affected versions
50 explicit affected versions
11 explicit affected versions
12 explicit affected versions
15 explicit affected versions
27 explicit affected versions
12 explicit affected versions
7 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hdmi: Avoid hang with debug registers when suspended Trying to read /sys/kernel/debug/dri/1/hdmi1_regs when the hdmi is disconnected results in a fatal system hang. This is due to the pm suspend code disabling the dvp clock. That is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG, which results in accesses hanging AXI bus. Protect against this.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/223ee2567a55e4f80315c768d2969e6a3b9fb23d
- https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075
- https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df
- https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d
- https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e
- https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df
- https://ubuntu.com/security/CVE-2024-56683
- https://ubuntu.com/security/notices/USN-7276-1
- https://ubuntu.com/security/notices/USN-7277-1
- https://ubuntu.com/security/notices/USN-7310-1
- https://ubuntu.com/security/notices/USN-7449-1
- https://ubuntu.com/security/notices/USN-7449-2
- https://ubuntu.com/security/notices/USN-7450-1
- https://ubuntu.com/security/notices/USN-7451-1
- https://ubuntu.com/security/notices/USN-7452-1
- https://ubuntu.com/security/notices/USN-7453-1
- https://ubuntu.com/security/notices/USN-7468-1
- https://ubuntu.com/security/notices/USN-7523-1
- https://ubuntu.com/security/notices/USN-7524-1
- https://www.cve.org/CVERecord?id=CVE-2024-56683