UBUNTU-CVE-2024-50023
In the Linux kernel, the following vulnerability has been resolved: net: phy: Remove LED entry from LEDs list on unregister Commit c938ab4da0eb ("net: phy: Manual remove LEDs to ensure correct ordering") correctly fixed a problem with using devm_ but missed removing the LED entry from the LEDs list. This cause kernel panic on specific scenario where the port for the PHY is torn down and up and the kmod for the PHY is removed. On setting the port down the first time, the assosiacted LEDs are correctly unregistered. The associated kmod for the PHY is now removed. The kmod is now added again and the port is now put up, the associated LED are registered again. On putting the port down again for the second time after these step, the LED list now have 4 elements. With the first 2 already unregistered previously and the 2 new one registered again. This cause a kernel panic as the first 2 element should have been removed. Fix this by correctly removing the element when LED is unregistered.
02 / AFFECTED SOFTWARE
Affected packages
14 explicit affected versions
29 explicit affected versions
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1 explicit affected versions
6 explicit affected versions
2 explicit affected versions
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26 explicit affected versions
37 explicit affected versions
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10 explicit affected versions
10 explicit affected versions
10 explicit affected versions
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13 explicit affected versions
1 explicit affected versions
37 explicit affected versions
8 explicit affected versions
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19 explicit affected versions
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33 explicit affected versions
11 explicit affected versions
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38 explicit affected versions
1 explicit affected versions
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13 explicit affected versions
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10 explicit affected versions
10 explicit affected versions
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11 explicit affected versions
1 explicit affected versions
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21 explicit affected versions
6 explicit affected versions
13 explicit affected versions
12 explicit affected versions
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14 explicit affected versions
18 explicit affected versions
12 explicit affected versions
26 explicit affected versions
1 explicit affected versions
23 explicit affected versions
7 explicit affected versions
14 explicit affected versions
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5 explicit affected versions
14 explicit affected versions
19 explicit affected versions
3 explicit affected versions
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23 explicit affected versions
26 explicit affected versions
12 explicit affected versions
13 explicit affected versions
15 explicit affected versions
44 explicit affected versions
4 explicit affected versions
4 explicit affected versions
16 explicit affected versions
9 explicit affected versions
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7 explicit affected versions
13 explicit affected versions
14 explicit affected versions
7 explicit affected versions
19 explicit affected versions
13 explicit affected versions
7 explicit affected versions
10 explicit affected versions
14 explicit affected versions
18 explicit affected versions
3 explicit affected versions
16 explicit affected versions
43 explicit affected versions
24 explicit affected versions
20 explicit affected versions
19 explicit affected versions
11 explicit affected versions
12 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
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: net: phy: Remove LED entry from LEDs list on unregister Commit c938ab4da0eb ("net: phy: Manual remove LEDs to ensure correct ordering") correctly fixed a problem with using devm_ but missed removing the LED entry from the LEDs list. This cause kernel panic on specific scenario where the port for the PHY is torn down and up and the kmod for the PHY is removed. On setting the port down the first time, the assosiacted LEDs are correctly unregistered. The associated kmod for the PHY is now removed. The kmod is now added again and the port is now put up, the associated LED are registered again. On putting the port down again for the second time after these step, the LED list now have 4 elements. With the first 2 already unregistered previously and the 2 new one registered again. This cause a kernel panic as the first 2 element should have been removed. Fix this by correctly removing the element when LED is unregistered.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/f50b5d74c68e551667e265123659b187a30fe3a5
- https://git.kernel.org/stable/c/143ffa7878e2d9d9c3836ee8304ce4930f7852a3
- https://git.kernel.org/stable/c/f50b5d74c68e551667e265123659b187a30fe3a5
- https://git.kernel.org/stable/c/fba363f4d244269a0ba7abb8df953a244c6749af
- https://ubuntu.com/security/CVE-2024-50023
- 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-7383-1
- https://ubuntu.com/security/notices/USN-7383-2
- https://ubuntu.com/security/notices/USN-7384-1
- https://ubuntu.com/security/notices/USN-7384-2
- https://ubuntu.com/security/notices/USN-7385-1
- https://ubuntu.com/security/notices/USN-7386-1
- https://ubuntu.com/security/notices/USN-7403-1
- https://ubuntu.com/security/notices/USN-7451-1
- 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-2024-50023