UBUNTU-CVE-2024-26900

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    UBUNTU-CVE-2024-26900

    Published: 17 Apr 2024Last Modified: 17 Sept 2026
    Upstream:
    CVE-2024-26900
    Aliases:
    USN-6816-1
    USN-6817-1
    USN-6817-2

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: md: fix kmemleak of rdev->serial If kobject_add() is fail in bind_rdev_to_array(), 'rdev->serial' will be alloc not be freed, and kmemleak occurs. unreferenced object 0xffff88815a350000 (size 49152): comm "mdadm", pid 789, jiffies 4294716910 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc f773277a): [<0000000058b0a453>] kmemleak_alloc+0x61/0xe0 [<00000000366adf14>] __kmalloc_large_node+0x15e/0x270 [<000000002e82961b>] __kmalloc_node.cold+0x11/0x7f [<00000000f206d60a>] kvmalloc_node+0x74/0x150 [<0000000034bf3363>] rdev_init_serial+0x67/0x170 [<0000000010e08fe9>] mddev_create_serial_pool+0x62/0x220 [<00000000c3837bf0>] bind_rdev_to_array+0x2af/0x630 [<0000000073c28560>] md_add_new_disk+0x400/0x9f0 [<00000000770e30ff>] md_ioctl+0x15bf/0x1c10 [<000000006cfab718>] blkdev_ioctl+0x191/0x3f0 [<0000000085086a11>] vfs_ioctl+0x22/0x60 [<0000000018b656fe>] __x64_sys_ioctl+0xba/0xe0 [<00000000e54e675e>] do_syscall_64+0x71/0x150 [<000000008b0ad622>] entry_SYSCALL_64_after_hwframe+0x6c/0x74

    References: https://ubuntu.com/security/CVE-2024-26900, https://www.cve.org/CVERecord?id=CVE-2024-26900, https://git.kernel.org/linus/6cf350658736681b9d6b0b6e58c5c76b235bb4c4, https://git.kernel.org/stable/c/6d32c832a88513f65c2c2c9c75954ee8b387adea, https://git.kernel.org/stable/c/4c1021ce46fc2fb6115f7e79d353941e6dcad366, https://git.kernel.org/stable/c/6cf350658736681b9d6b0b6e58c5c76b235bb4c4, https://ubuntu.com/security/notices/USN-6816-1, https://ubuntu.com/security/notices/USN-6817-1, https://ubuntu.com/security/notices/USN-6817-2, https://ubuntu.com/security/notices/USN-6817-3, https://ubuntu.com/security/notices/USN-6878-1, https://ubuntu.com/security/notices/USN-6950-1, https://ubuntu.com/security/notices/USN-6956-1, https://ubuntu.com/security/notices/USN-6957-1, https://ubuntu.com/security/notices/USN-6950-2, https://ubuntu.com/security/notices/USN-6950-3, https://ubuntu.com/security/notices/USN-6950-4, https://ubuntu.com/security/notices/USN-7019-1

    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