vulnerability
Ubuntu: (Multiple Advisories) (CVE-2024-26900): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | 04/17/2024 | 07/01/2024 | 01/30/2025 |
Description
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):
[] kmemleak_alloc+0x61/0xe0
[] __kmalloc_large_node+0x15e/0x270
[] __kmalloc_node.cold+0x11/0x7f
[] kvmalloc_node+0x74/0x150
[] rdev_init_serial+0x67/0x170
[] mddev_create_serial_pool+0x62/0x220
[] bind_rdev_to_array+0x2af/0x630
[] md_add_new_disk+0x400/0x9f0
[] md_ioctl+0x15bf/0x1c10
[] blkdev_ioctl+0x191/0x3f0
[] vfs_ioctl+0x22/0x60
[] __x64_sys_ioctl+0xba/0xe0
[] do_syscall_64+0x71/0x150
[] entry_SYSCALL_64_after_hwframe+0x6c/0x74
Solution(s)
Explore Exposure Command
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