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
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/md/md.c"
],
"versions": [
{
"version": "963c555e75b0",
"lessThan": "fb5b347efd1b",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "f3a1787dc482",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "beaf11969fd5",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "9fd0198f7ef0",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "6d32c832a885",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "4c1021ce46fc",
"status": "affected",
"versionType": "git"
},
{
"version": "963c555e75b0",
"lessThan": "6cf350658736",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/md/md.c"
],
"versions": [
{
"version": "5.3",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.3",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.217",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.159",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.91",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.31",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.7.11",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8.2",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/4c1021ce46fc2fb6115f7e79d353941e6dcad366
git.kernel.org/stable/c/6cf350658736681b9d6b0b6e58c5c76b235bb4c4
git.kernel.org/stable/c/6d32c832a88513f65c2c2c9c75954ee8b387adea
git.kernel.org/stable/c/9fd0198f7ef06ae0d6636fb0578560857dead995
git.kernel.org/stable/c/beaf11969fd5cbe6f09cefaa34df1ce8578e8dd9
git.kernel.org/stable/c/f3a1787dc48213f6caea5ba7d47e0222e7fa34a9
git.kernel.org/stable/c/fb5b347efd1bda989846ffc74679d181222fb123
lists.debian.org/debian-lts-announce/2024/06/msg00019.html