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Vulnerability · Published Apr 17, 2024 · Assigned by Linux

CVE-2024-26900md: fix kmemleak of rdev->serial

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 78.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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): [<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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.94-1DEBIAN-CVE-2024-26900
Debian:13linux6.7.12-1DEBIAN-CVE-2024-26900
Debian:14linux6.7.12-1DEBIAN-CVE-2024-26900
Ubuntu:22.04:LTSlinux5.15.0-118.128UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux5.15.0-118.128USN-6950-1
Ubuntu:24.04:LTSlinux6.8.0-35.35UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-aws5.15.0-1067.73UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-aws5.15.0-1067.73USN-6950-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1009.9UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure5.15.0-1070.79UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure5.15.0-1070.79USN-6956-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1008.8UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1070.79.1UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1070.79.1USN-6956-1
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gcp5.15.0-1066.74USN-6950-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1066.74UBUNTU-CVE-2024-26900
Ubuntu:24.04:LTSlinux-gcp6.8.0-1008.9UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gke5.15.0-1064.70UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gke5.15.0-1064.70USN-6950-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1004.7UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1050.57USN-6950-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1050.57UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-ibm5.15.0-1060.63UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-ibm5.15.0-1060.63USN-6950-2
Ubuntu:24.04:LTSlinux-ibm6.8.0-1006.6UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1062.68UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1062.68USN-6950-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1064.69USN-6950-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1064.69UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-118.128USN-6950-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-118.128UBUNTU-CVE-2024-26900
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-35.35.1UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1062.63UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1062.63USN-6950-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1027.27UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1006.6UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oracle5.15.0-1065.71UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oracle5.15.0-1065.71USN-6950-3
Ubuntu:24.04:LTSlinux-oracle6.8.0-1006.6UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-raspi5.15.0-1060.63UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-raspi5.15.0-1060.63USN-6950-2
Ubuntu:24.04:LTSlinux-raspi6.8.0-1005.5UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26900
Ubuntu:24.04:LTSlinux-riscv6.8.0-35.35.1UBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-26900
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39USN-7019-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-26900

Affected products (as reported)

VendorProductVersions
Linux Linux 963c555e75b033202dd76cf6325a7b7c83d08d5f – before fb5b347efd1bda989846ffc74679d181222fb123963c555e75b033202dd76cf6325a7b7c83d08d5f – before f3a1787dc48213f6caea5ba7d47e0222e7fa34a9963c555e75b033202dd76cf6325a7b7c83d08d5f – before beaf11969fd5cbe6f09cefaa34df1ce8578e8dd9963c555e75b033202dd76cf6325a7b7c83d08d5f – before 9fd0198f7ef06ae0d6636fb0578560857dead995963c555e75b033202dd76cf6325a7b7c83d08d5f – before 6d32c832a88513f65c2c2c9c75954ee8b387adea963c555e75b033202dd76cf6325a7b7c83d08d5f – before 4c1021ce46fc2fb6115f7e79d353941e6dcad366963c555e75b033202dd76cf6325a7b7c83d08d5f – before 6cf350658736681b9d6b0b6e58c5c76b235bb4c4
Linux Linux 5.3

References