CVE-2022-50561

Summary

In the Linux kernel, the following vulnerability has been resolved:

iio: fix memory leak in iio_device_register_eventset()

When iio_device_register_sysfs_group() returns failed, iio_device_register_eventset() needs to free attrs array.

Otherwise, kmemleak would scan & report memory leak as below:

unreferenced object 0xffff88810a1cc3c0 (size 32): comm "100-i2c-vcnl302", pid 728, jiffies 4295052307 (age 156.027s) backtrace: __kmalloc+0x46/0x1b0 iio_device_register_eventset at drivers/iio/industrialio-event.c:541 __iio_device_register at drivers/iio/industrialio-core.c:1959 __devm_iio_device_register at drivers/iio/industrialio-core.c:2040

Affected Software

VendorProductVersion RangeStatus
LinuxLinux32f171724e5cbecc80594fb6eced057cfdd6eb6f < dc6afd6070f3a5b086c8c5cfa6ded63ae44494daaffected
LinuxLinux32f171724e5cbecc80594fb6eced057cfdd6eb6f < 5de3add7509c95685f1185683b817dd206c4b1f1affected
LinuxLinux32f171724e5cbecc80594fb6eced057cfdd6eb6f < a154b1c139fbf6a49762159be81d425d41ceec87affected
LinuxLinux32f171724e5cbecc80594fb6eced057cfdd6eb6f < 86fdd15e10e404e70ecb2a3bff24d70356d42b36affected
LinuxLinux5.13affected
LinuxLinux0 < 5.13unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References