CVE-2024-50068

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

State: Published
Severity: 5.5 Medium
Published: Oct 29, 2024
Updated: May 11, 2026
Reserved: Oct 21, 2024

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

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
LinuxLinux	b8ee5575f763c239902f8523d82103a45c153b29 to before 05d43455f6bffa6abc7b937ca58be00452e6973fAffected b8ee5575f763c239902f8523d82103a45c153b29 to before 2d6a1c835685de3b0c8e8dc871f60f4ef92ab01aAffected
LinuxLinux	6.7Affected before 6.7Not affected 6.11.5 through 6.11.*Not affected 6.12 and laterNot affected

References

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