Description
libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a NULL pointer dereference and memory leak in fuse_uring_init_queue allows a local user to crash the FUSE daemon or cause resource exhaustion. When numa_alloc_local fails during io_uring queue entry setup, the code proceeds with NULL pointers. When fuse_uring_register_queue fails, NUMA allocations are leaked and the function incorrectly returns success. Only the io_uring transport is affected; the traditional /dev/fuse path is not affected. PoC confirmed with AddressSanitizer/LeakSanitizer. This issue has been patched in version 3.18.2.
INFO
Published Date :
2026-03-20T20:20:09.171Z
Last Modified :
2026-03-25T13:55:45.971Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-33179 vulnerability.
| Vendors | Products |
|---|---|
| Libfuse |
|
| Libfuse Project |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33179.
