exfat: fix double free in delayed_free
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/13d8de1b6568dcc31a95534ced16bc0c9a67bc15https://git.kernel.org/stable/c/1f3d9724e16d62c7d42c67d6613b8512f2887c22https://git.kernel.org/stable/c/66e84439ec2af776ce749e8540f8fdd257774152https://git.kernel.org/stable/c/d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fdhttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html