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PUBLISHED

CVE-2024-26749

usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()

Reserved:2024-02-19
Published:2024-04-03
Updated:2024-04-03

Description

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.

Product status

Default status
unaffected

7733f6c32e36 before cfa9abb5570c
affected

7733f6c32e36 before b40328eea93c
affected

7733f6c32e36 before 4e5c73b15d95
affected

7733f6c32e36 before 2134e9906e17
affected

7733f6c32e36 before 29e42e1578a1
affected

7733f6c32e36 before 9a07244f614b
affected

7733f6c32e36 before cd45f99034b0
affected

Default status
affected

5.4
affected

Any version before 5.4
unaffected

5.4.270
unaffected

5.10.211
unaffected

5.15.150
unaffected

6.1.80
unaffected

6.6.19
unaffected

6.7.7
unaffected

6.8
unaffected

References

https://git.kernel.org/stable/c/cfa9abb5570c489dabf6f7fb3a066cc576fc8824

https://git.kernel.org/stable/c/b40328eea93c75a5645891408010141a0159f643

https://git.kernel.org/stable/c/4e5c73b15d95452c1ba9c771dd013a3fbe052ff3

https://git.kernel.org/stable/c/2134e9906e17b1e5284300fab547869ebacfd7d9

https://git.kernel.org/stable/c/29e42e1578a10c611b3f1a38f3229b2d664b5d16

https://git.kernel.org/stable/c/9a07244f614bc417de527b799da779dcae780b5d

https://git.kernel.org/stable/c/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6

cve.org CVE-2024-26749

nvd.nist.gov CVE-2024-26749

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