CVE-2022-49468 (GCVE-0-2022-49468)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2025-10-01 19:46
VLAI?
Title
thermal/core: Fix memory leak in __thermal_cooling_device_register()
Summary
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().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8ea229511e06f9635ecc338dcbe0db41a73623f0 , < 18530bedd221160823f63ccc20dd55c7a03edbcf (git)
Affected: 8ea229511e06f9635ecc338dcbe0db41a73623f0 , < 21ccc58b671aea924f2481cf5c1cf0ebbfd3552d (git)
Affected: 8ea229511e06f9635ecc338dcbe0db41a73623f0 , < 3802171f0b5b8b831f4ade5c827547cb323a5bb2 (git)
Affected: 8ea229511e06f9635ecc338dcbe0db41a73623f0 , < 9abdf0c0184230f0cb5c6685aabf33dda89aa9fb (git)
Affected: 8ea229511e06f9635ecc338dcbe0db41a73623f0 , < 98a160e898c0f4a979af9de3ab48b4b1d42d1dbb (git)
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    Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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