CVE-2024-50068

Summary

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

Affected Software

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://git.kernel.org/stable/c/05d43455f6bffa6abc7b937ca58be00452e6973f
• https://git.kernel.org/stable/c/2d6a1c835685de3b0c8e8dc871f60f4ef92ab01a

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