Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 3.18+ only |
| esm-apps/jammy | not-affected | 3.18+ only |
| esm-apps/noble | not-affected | 3.18+ only |
| esm-apps/resolute | not-affected | 3.18+ only |
| esm-infra-legacy/trusty | not-affected | 3.18+ only |
| esm-infra-legacy/xenial | not-affected | 3.18+ only |
| esm-infra/bionic | not-affected | 3.18+ only |
| esm-infra/focal | not-affected | 3.18+ only |
| esm-infra/xenial | not-affected | 3.18+ only |
| jammy | not-affected | 3.18+ only |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 3.18.2-1 |
| esm-apps/focal | not-affected | 3.18+ only |
| jammy | not-affected | 3.18+ only |
| noble | not-affected | 3.18+ only |
| questing | not-affected | 3.18+ only |
| resolute | not-affected | 3.18.2-1 |
| upstream | released | 3.18.2 |
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EPSS
5.5 Medium
CVSS3
Связанные уязвимости
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.
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.
libfuse is the reference implementation of the Linux FUSE. From versio ...
EPSS
5.5 Medium
CVSS3