cbcvebase.
CVE-2026-46072
published 2026-05-27

CVE-2026-46072: 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`…

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).

Affected

9 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < bbad75336870b51b81979b97613746237fcb02febbad75336870b51b81979b97613746237fcb02fe
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 425de2aba0d061b3e715d51a3b1992c112ed5b99425de2aba0d061b3e715d51a3b1992c112ed5b99
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < e64f7dfcaff79e7dfff9121a382dd77f9b462f62e64f7dfcaff79e7dfff9121a382dd77f9b462f62
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < d3012690a7065d9ca86521a525ad11e8af491d45d3012690a7065d9ca86521a525ad11e8af491d45
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 41aadf5cb482793a24e05aa136224e179a77858641aadf5cb482793a24e05aa136224e179a778586
linuxlinux>= 82cae269cfa953032fbb8980a7d554d60fb00b17 < b62567bca47408e6739dee75f02a2113548af875b62567bca47408e6739dee75f02a2113548af875
linuxlinux_kernel——