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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49468thermal/core: Fix memory leak in __thermal_cooling_device_register()

Medium 5.5

In plain English

A medium-severity memory leak 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 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 75.3% 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: thermal/core: Fix memory leak in __thermal_cooling_device_register() I got memory leak as follows when doing fault injection test: unreferenced object 0xffff888010080000 (size 264312): comm "182", pid 102533, jiffies 4296434960 (age 10.100s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff ........@....... backtrace: [<0000000038b2f4fc>] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969 [<00000000ebcb8da5>] __kmalloc+0x373/0x420 include/linux/slab.h:510 [<0000000084137f13>] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586 [<00000000352b8755>] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927 [<00000000fb9f331b>] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041 [<000000009b8012d2>] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211 [<00000000da0b7e04>] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561 If device_register() fails, thermal_cooling_device_destroy_sysfs() need be called to free the memory allocated in thermal_cooling_device_setup_sysfs().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.18.5-1DEBIAN-CVE-2022-49468
Debian:13linux5.18.5-1DEBIAN-CVE-2022-49468
Debian:14linux5.18.5-1DEBIAN-CVE-2022-49468
Ubuntu:22.04:LTSlinux5.15.0-47.51UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-aws5.15.0-1019.23UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure5.15.0-1019.24UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gcp5.15.0-1017.23UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gke5.15.0-1015.18UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1002.4UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-ibm5.15.0-1013.15UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1015.20UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-kvm5.15.0-1017.21UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-47.53UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oracle5.15.0-1017.22UBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-raspi5.15.0-1014.16UBUNTU-CVE-2022-49468
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49468
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49468

Affected products (as reported)

VendorProductVersions
Linux Linux 8ea229511e06f9635ecc338dcbe0db41a73623f0 – before 18530bedd221160823f63ccc20dd55c7a03edbcf8ea229511e06f9635ecc338dcbe0db41a73623f0 – before 21ccc58b671aea924f2481cf5c1cf0ebbfd3552d8ea229511e06f9635ecc338dcbe0db41a73623f0 – before 3802171f0b5b8b831f4ade5c827547cb323a5bb28ea229511e06f9635ecc338dcbe0db41a73623f0 – before 9abdf0c0184230f0cb5c6685aabf33dda89aa9fb8ea229511e06f9635ecc338dcbe0db41a73623f0 – before 98a160e898c0f4a979af9de3ab48b4b1d42d1dbb
Linux Linux 4.17

Weakness: CWE-401 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References