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).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
82cae269cfa953032fbb8980a7d554d60fb00b17 to < bbad75336870b51b81979b97613746237fcb02feaffected82cae269cfa953032fbb8980a7d554d60fb00b17 to < 425de2aba0d061b3e715d51a3b1992c112ed5b99affected82cae269cfa953032fbb8980a7d554d60fb00b17 to < bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9affected82cae269cfa953032fbb8980a7d554d60fb00b17 to < e64f7dfcaff79e7dfff9121a382dd77f9b462f62affected82cae269cfa953032fbb8980a7d554d60fb00b17 to < d3012690a7065d9ca86521a525ad11e8af491d45affected82cae269cfa953032fbb8980a7d554d60fb00b17 to < 41aadf5cb482793a24e05aa136224e179a778586affected82cae269cfa953032fbb8980a7d554d60fb00b17 to < b62567bca47408e6739dee75f02a2113548af875affected
Linux Linux
Default version status: affected
5.15affected0 to < 5.15unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.140 to ≤ 6.6.*unaffected6.12.86 to ≤ 6.12.*unaffected6.18.27 to ≤ 6.18.*unaffected7.0.4 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
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 ↗