CVE-2022-49468thermal/core: Fix memory leak in __thermal_cooling_device_register()
- 5.5MediumCVSS base score
- 0.32%Exploitation in 30 daysEPSS · top 75% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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().
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.32% · top 75% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 8ea229511e06f9635ecc338dcbe0db41a73623f0 – < 18530bedd221160823f63ccc20dd55c7a03edbcf
- affected 8ea229511e06f9635ecc338dcbe0db41a73623f0 – < 21ccc58b671aea924f2481cf5c1cf0ebbfd3552d
- affected 8ea229511e06f9635ecc338dcbe0db41a73623f0 – < 3802171f0b5b8b831f4ade5c827547cb323a5bb2
- affected 8ea229511e06f9635ecc338dcbe0db41a73623f0 – < 9abdf0c0184230f0cb5c6685aabf33dda89aa9fb
- affected 8ea229511e06f9635ecc338dcbe0db41a73623f0 – < 98a160e898c0f4a979af9de3ab48b4b1d42d1dbb
- affected 4.17
- unaffected < 4.17
- unaffected 5.10.121 – ≤ 5.10.*
- unaffected 5.15.46 – ≤ 5.15.*
- unaffected 5.17.14 – ≤ 5.17.*
- unaffected 5.18.3 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References
References5
- https://git.kernel.org/stable/c/18530bedd221160823f63ccc20dd55c7a03edbcf (opens in a new tab)
- https://git.kernel.org/stable/c/21ccc58b671aea924f2481cf5c1cf0ebbfd3552d (opens in a new tab)
- https://git.kernel.org/stable/c/3802171f0b5b8b831f4ade5c827547cb323a5bb2 (opens in a new tab)
- https://git.kernel.org/stable/c/9abdf0c0184230f0cb5c6685aabf33dda89aa9fb (opens in a new tab)
- https://git.kernel.org/stable/c/98a160e898c0f4a979af9de3ab48b4b1d42d1dbb (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-54761 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49468)Record last updated .