# CVE-2022-49468: linux: In the Linux kernel, the following vulnerability has been resolved:  thermal/core: Fix memory leak in __thermal_cooli...

CVE-2022-49468 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49468, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49468
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0032
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## 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().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2022-49468](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49468.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2022-49468](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49468.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2022-49468](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49468.md) | Feb 26, 2025 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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