UBUNTU-CVE-2024-50061
In the Linux kernel, the following vulnerability has been resolved: i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition In the cdns_i3c_master_probe function, &master->hj_work is bound with cdns_i3c_master_hj. And cdns_i3c_master_interrupt can call cnds_i3c_master_demux_ibis function to start the work. If we remove the module which will call cdns_i3c_master_remove to make cleanup, it will free master->base through i3c_master_unregister while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | cdns_i3c_master_hj cdns_i3c_master_remove | i3c_master_unregister(&master->base) | device_unregister(&master->dev) | device_release | //free master->base | | i3c_master_do_daa(&master->base) | //use master->base Fix it by ensuring that the work is canceled before proceeding with the cleanup in cdns_i3c_master_remove.
02 / AFFECTED SOFTWARE
Affected packages
66 explicit affected versions
20 explicit affected versions
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67 explicit affected versions
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13 explicit affected versions
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114 explicit affected versions
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11 explicit affected versions
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6 explicit affected versions
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11 explicit affected versions
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14 explicit affected versions
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10 explicit affected versions
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35 explicit affected versions
18 explicit affected versions
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64 explicit affected versions
19 explicit affected versions
112 explicit affected versions
13 explicit affected versions
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24 explicit affected versions
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1 explicit affected versions
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16 explicit affected versions
10 explicit affected versions
20 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
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14 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
31 explicit affected versions
97 explicit affected versions
12 explicit affected versions
98 explicit affected versions
12 explicit affected versions
14 explicit affected versions
1 explicit affected versions
11 explicit affected versions
6 explicit affected versions
10 explicit affected versions
37 explicit affected versions
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1 explicit affected versions
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13 explicit affected versions
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29 explicit affected versions
102 explicit affected versions
13 explicit affected versions
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13 explicit affected versions
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23 explicit affected versions
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10 explicit affected versions
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12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
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10 explicit affected versions
26 explicit affected versions
18 explicit affected versions
1 explicit affected versions
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10 explicit affected versions
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16 explicit affected versions
76 explicit affected versions
22 explicit affected versions
3 explicit affected versions
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1 explicit affected versions
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51 explicit affected versions
7 explicit affected versions
12 explicit affected versions
64 explicit affected versions
65 explicit affected versions
27 explicit affected versions
51 explicit affected versions
42 explicit affected versions
5 explicit affected versions
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1 explicit affected versions
10 explicit affected versions
18 explicit affected versions
13 explicit affected versions
101 explicit affected versions
13 explicit affected versions
64 explicit affected versions
12 explicit affected versions
25 explicit affected versions
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73 explicit affected versions
47 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
23 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
13 explicit affected versions
7 explicit affected versions
78 explicit affected versions
7 explicit affected versions
4 explicit affected versions
67 explicit affected versions
1 explicit affected versions
110 explicit affected versions
10 explicit affected versions
8 explicit affected versions
17 explicit affected versions
80 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
14 explicit affected versions
66 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition In the cdns_i3c_master_probe function, &master->hj_work is bound with cdns_i3c_master_hj. And cdns_i3c_master_interrupt can call cnds_i3c_master_demux_ibis function to start the work. If we remove the module which will call cdns_i3c_master_remove to make cleanup, it will free master->base through i3c_master_unregister while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | cdns_i3c_master_hj cdns_i3c_master_remove | i3c_master_unregister(&master->base) | device_unregister(&master->dev) | device_release | //free master->base | | i3c_master_do_daa(&master->base) | //use master->base Fix it by ensuring that the work is canceled before proceeding with the cleanup in cdns_i3c_master_remove.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/609366e7a06d035990df78f1562291c3bf0d4a12
- https://git.kernel.org/stable/c/609366e7a06d035990df78f1562291c3bf0d4a12
- https://git.kernel.org/stable/c/687016d6a1efbfacdd2af913e2108de6b75a28d5
- https://git.kernel.org/stable/c/ea0256e393e0072e8c80fd941547807f0c28108b
- https://ubuntu.com/security/CVE-2024-50061
- 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://ubuntu.com/security/notices/USN-7874-1
- https://ubuntu.com/security/notices/USN-7874-2
- https://ubuntu.com/security/notices/USN-7874-3
- https://ubuntu.com/security/notices/USN-7909-1
- https://ubuntu.com/security/notices/USN-7909-2
- https://ubuntu.com/security/notices/USN-7909-3
- https://ubuntu.com/security/notices/USN-7909-4
- https://ubuntu.com/security/notices/USN-7909-5
- https://ubuntu.com/security/notices/USN-7910-1
- https://ubuntu.com/security/notices/USN-7910-2
- https://ubuntu.com/security/notices/USN-7933-1
- https://ubuntu.com/security/notices/USN-7938-1
- https://ubuntu.com/security/notices/USN-7939-1
- https://ubuntu.com/security/notices/USN-7939-2
- https://www.cve.org/CVERecord?id=CVE-2024-50061