Riskcovery

CVE-2024-26749

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

State
Published
Severity
Not scored
Published
Apr 3, 2024
Updated
May 11, 2026
Reserved
Feb 19, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before cfa9abb5570c489dabf6f7fb3a066cc576fc8824Affected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before b40328eea93c75a5645891408010141a0159f643Affected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before 4e5c73b15d95452c1ba9c771dd013a3fbe052ff3Affected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before 2134e9906e17b1e5284300fab547869ebacfd7d9Affected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before 29e42e1578a10c611b3f1a38f3229b2d664b5d16Affected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before 9a07244f614bc417de527b799da779dcae780b5dAffected
  • 7733f6c32e36ff9d7adadf40001039bf219b1cbe to before cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6Affected
LinuxLinux
  • 5.4Affected
  • before 5.4Not affected
  • 5.4.270 through 5.4.*Not affected
  • 5.10.211 through 5.10.*Not affected
  • 5.15.150 through 5.15.*Not affected
  • 6.1.80 through 6.1.*Not affected
  • 6.6.19 through 6.6.*Not affected
  • 6.7.7 through 6.7.*Not affected
  • 6.8 and laterNot affected

References

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