UBUNTU-CVE-2024-26749
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable() ... cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ... 'priv_req' actually free at cdns3_gadget_ep_free_request(). But list_del_init() use priv_req->list after it. [ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4 [ 1542.642868][ T534] [ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3): [ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4 [ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3] [ 1542.671571][ T534] usb_ep_disable+0x44/0xe4 [ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8 [ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368 [ 1542.685478][ T534] ffs_func_disable+0x18/0x28 Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this problem.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
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13 explicit affected versions
35 explicit affected versions
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10 explicit affected versions
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13 explicit affected versions
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29 explicit affected versions
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13 explicit affected versions
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75 explicit affected versions
9 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
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12 explicit affected versions
7 explicit affected versions
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37 explicit affected versions
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25 explicit affected versions
1 explicit affected versions
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35 explicit affected versions
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5 explicit affected versions
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1 explicit affected versions
10 explicit affected versions
79 explicit affected versions
13 explicit affected versions
43 explicit affected versions
7 explicit affected versions
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10 explicit affected versions
12 explicit affected versions
12 explicit affected versions
78 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
11 explicit affected versions
13 explicit affected versions
26 explicit affected versions
35 explicit affected versions
37 explicit affected versions
14 explicit affected versions
38 explicit affected versions
39 explicit affected versions
9 explicit affected versions
38 explicit affected versions
4 explicit affected versions
46 explicit affected versions
8 explicit affected versions
7 explicit affected versions
20 explicit affected versions
50 explicit affected versions
1 explicit affected versions
1 explicit affected versions
44 explicit affected versions
13 explicit affected versions
43 explicit affected versions
44 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
79 explicit affected versions
4 explicit affected versions
68 explicit affected versions
11 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable() ... cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ... 'priv_req' actually free at cdns3_gadget_ep_free_request(). But list_del_init() use priv_req->list after it. [ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4 [ 1542.642868][ T534] [ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3): [ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4 [ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3] [ 1542.671571][ T534] usb_ep_disable+0x44/0xe4 [ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8 [ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368 [ 1542.685478][ T534] ffs_func_disable+0x18/0x28 Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this problem.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6
- https://git.kernel.org/stable/c/2134e9906e17b1e5284300fab547869ebacfd7d9
- https://git.kernel.org/stable/c/29e42e1578a10c611b3f1a38f3229b2d664b5d16
- https://git.kernel.org/stable/c/4e5c73b15d95452c1ba9c771dd013a3fbe052ff3
- https://git.kernel.org/stable/c/9a07244f614bc417de527b799da779dcae780b5d
- https://git.kernel.org/stable/c/b40328eea93c75a5645891408010141a0159f643
- https://git.kernel.org/stable/c/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6
- https://git.kernel.org/stable/c/cfa9abb5570c489dabf6f7fb3a066cc576fc8824
- https://ubuntu.com/security/CVE-2024-26749
- https://ubuntu.com/security/notices/USN-6820-1
- https://ubuntu.com/security/notices/USN-6820-2
- https://ubuntu.com/security/notices/USN-6821-1
- https://ubuntu.com/security/notices/USN-6821-2
- https://ubuntu.com/security/notices/USN-6821-3
- https://ubuntu.com/security/notices/USN-6821-4
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6831-1
- https://ubuntu.com/security/notices/USN-6867-1
- https://ubuntu.com/security/notices/USN-6871-1
- https://ubuntu.com/security/notices/USN-6892-1
- https://ubuntu.com/security/notices/USN-6919-1
- https://www.cve.org/CVERecord?id=CVE-2024-26749