High · published July 4, 2025
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix double free in delayed_free
The double free could happen in the following path.
exfat_create_upcase_table()
exfat_create_upcase_table() : return error
exfat_free_upcase_table() : free ->vol_utbl
exfat_load_default_upcase_table : return error
exfat_kill_sb()
delayed_free()
exfat_free_upcase_table() <--------- double free
This patch set ->vol_util as NULL after freeing it.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.7, < 5.10.239 | 5.10.239 |
| linux/linux_kernel | ≥ 5.11, < 5.15.186 | 5.15.186 |
| linux/linux_kernel | ≥ 5.16, < 6.15.4 | 6.15.4 |
| debian/debian_linux | all versions | — |