UBUNTU-CVE-2024-26749

    Dashboard / Vulnerabilities / UBUNTU-CVE-2024-26749

    UBUNTU-CVE-2024-26749

    Published: 3 Apr 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2024-26749
    Aliases:
    USN-6820-1
    USN-6820-2
    USN-6821-1

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2024-26749, https://git.kernel.org/linus/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6, 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, https://www.cve.org/CVERecord?id=CVE-2024-26749, https://ubuntu.com/security/notices/USN-6820-1, https://ubuntu.com/security/notices/USN-6821-1, https://ubuntu.com/security/notices/USN-6821-2, https://ubuntu.com/security/notices/USN-6828-1, https://ubuntu.com/security/notices/USN-6820-2, https://ubuntu.com/security/notices/USN-6821-3, https://ubuntu.com/security/notices/USN-6831-1, https://ubuntu.com/security/notices/USN-6821-4, 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

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2024-26749 | CVE-DB