UBUNTU-CVE-2024-49874
In the Linux kernel, the following vulnerability has been resolved: i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition In the svc_i3c_master_probe function, &master->hj_work is bound with svc_i3c_master_hj_work, &master->ibi_work is bound with svc_i3c_master_ibi_work. And svc_i3c_master_ibi_work can start the hj_work, svc_i3c_master_irq_handler can start the ibi_work. If we remove the module which will call svc_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 | svc_i3c_master_hj_work svc_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 svc_i3c_master_remove.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
17 explicit affected versions
10 explicit affected versions
17 explicit affected versions
7 explicit affected versions
12 explicit affected versions
13 explicit affected versions
14 explicit affected versions
35 explicit affected versions
18 explicit affected versions
17 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
22 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
18 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
14 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
11 explicit affected versions
4 explicit affected versions
37 explicit affected versions
13 explicit affected versions
10 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
11 explicit affected versions
12 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
10 explicit affected versions
26 explicit affected versions
18 explicit affected versions
10 explicit affected versions
20 explicit affected versions
13 explicit affected versions
19 explicit affected versions
16 explicit affected versions
20 explicit affected versions
3 explicit affected versions
51 explicit affected versions
7 explicit affected versions
17 explicit affected versions
12 explicit affected versions
27 explicit affected versions
13 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
16 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
10 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
37 explicit affected versions
21 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
11 explicit affected versions
7 explicit affected versions
4 explicit affected versions
1 explicit affected versions
13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
15 explicit affected versions
14 explicit affected versions
4 explicit affected versions
11 explicit affected versions
1 explicit affected versions
12 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition In the svc_i3c_master_probe function, &master->hj_work is bound with svc_i3c_master_hj_work, &master->ibi_work is bound with svc_i3c_master_ibi_work. And svc_i3c_master_ibi_work can start the hj_work, svc_i3c_master_irq_handler can start the ibi_work. If we remove the module which will call svc_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 | svc_i3c_master_hj_work svc_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 svc_i3c_master_remove.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/61850725779709369c7e907ae8c7c75dc7cec4f3
- https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00
- https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a
- https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1
- https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3
- https://ubuntu.com/security/CVE-2024-49874
- https://ubuntu.com/security/notices/USN-7276-1
- https://ubuntu.com/security/notices/USN-7277-1
- https://ubuntu.com/security/notices/USN-7301-1
- https://ubuntu.com/security/notices/USN-7303-1
- https://ubuntu.com/security/notices/USN-7303-2
- https://ubuntu.com/security/notices/USN-7303-3
- https://ubuntu.com/security/notices/USN-7304-1
- https://ubuntu.com/security/notices/USN-7310-1
- https://ubuntu.com/security/notices/USN-7311-1
- 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://www.cve.org/CVERecord?id=CVE-2024-49874