CVE-2024-50068: mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()

Description

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

mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()

The sysfs_target->regions allocated in damon_sysfs_regions_alloc() is not
freed in damon_sysfs_test_add_targets(), which cause the following memory
leak, free it to fix it.

unreferenced object 0xffffff80c2a8db80 (size 96):
comm "kunit_try_catch", pid 187, jiffies 4294894363
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc 0):
[<0000000001e3714d>] kmemleak_alloc+0x34/0x40
[<000000008e6835c1>] __kmalloc_cache_noprof+0x26c/0x2f4
[<000000001286d9f8>] damon_sysfs_test_add_targets+0x1cc/0x738
[<0000000032ef8f77>] kunit_try_run_case+0x13c/0x3ac
[<00000000f3edea23>] kunit_generic_run_threadfn_adapter+0x80/0xec
[<00000000adf936cf>] kthread+0x2e8/0x374
[<0000000041bb1628>] ret_from_fork+0x10/0x20

Classification

CVE ID: CVE-2024-50068

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 8.55% (scored less or equal to compared to others)

EPSS Date: 2025-05-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2024-50068
https://git.kernel.org/stable/c/05d43455f6bffa6abc7b937ca58be00452e6973f
https://git.kernel.org/stable/c/2d6a1c835685de3b0c8e8dc871f60f4ef92ab01a

Timeline