CVE-2026-46072 | BDVDB-2026-335779 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: ntfs3: add buffer boundary checks to run_unpack() run_unpack() checks `run_buf < run_last` at the top of the while loop but then reads size_size and offset_size bytes via run_unpack_s64() without verifying they fit within the remaining buffer. A crafted NTFS image with truncated run data in an MFT attribute triggers an OOB heap read of up to 15 bytes when the filesystem is mounted. Add boundary checks before each run_unpack_s64() call to ensure the declared field size does not exceed the remaining buffer. Found by fuzzing with a source-patched harness (LibAFL + QEMU).
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/bbad75336870b51b81979b97613746237fcb02fe
- https://git.kernel.org/stable/c/425de2aba0d061b3e715d51a3b1992c112ed5b99
- https://git.kernel.org/stable/c/bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9
- https://git.kernel.org/stable/c/e64f7dfcaff79e7dfff9121a382dd77f9b462f62
- https://git.kernel.org/stable/c/d3012690a7065d9ca86521a525ad11e8af491d45
- https://git.kernel.org/stable/c/41aadf5cb482793a24e05aa136224e179a778586
- https://git.kernel.org/stable/c/b62567bca47408e6739dee75f02a2113548af875
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.