CVE-2022-50512 PUBLISHED

ext4: fix potential memory leak in ext4_fc_record_regions()

Assigner: Linux
Reserved: 07.10.2025 Published: 07.10.2025 Updated: 07.10.2025

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

ext4: fix potential memory leak in ext4_fc_record_regions()

As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 2cfb769d60a2a57eb3566765428b6131cd16dcfe (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 417b0455a0b6d0f60a2930592731d1f8340e24be (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to a4058b869e6c5e517c79e30532a350d0f3115c3e (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 518566e71ad86b7c2f1bf6d9caee9588bb7ac158 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 7069d105c1f15c442b68af43f7fde784f3126739 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 5.10.150 to 5.10.* (incl.)
  • unaffected from 5.15.75 to 5.15.* (incl.)
  • unaffected from 5.19.17 to 5.19.* (incl.)
  • unaffected from 6.0.3 to 6.0.* (incl.)
  • unaffected from 6.1 to * (incl.)

References