Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, __kernel_write() creates an ITER_KVEC iterator. This iterator reaches netfs_limit_iter() via netfs_unbuffered_write(), which only handles ITER_FOLIOQ, ITER_BVEC and ITER_XARRAY iterator types, hitting the BUG() for any other type. Fix this by adding netfs_limit_kvec() following the same pattern as netfs_limit_bvec(), since both kvec and bvec are simple segment arrays with pointer and length fields. Dispatch it from netfs_limit_iter() when the iterator type is ITER_KVEC.
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
cae932d3aee55035a54415dcea8e7ecf2ec469b5 to < 18c2e20b42dd21db599e42d05ddaeeb647b2bb6daffectedcae932d3aee55035a54415dcea8e7ecf2ec469b5 to < 4bc2d72c7695cedf6d4e1a558924903c2b28a78eaffectedcae932d3aee55035a54415dcea8e7ecf2ec469b5 to < 00d6df7115f6972370974212de9088087820802eaffectedcae932d3aee55035a54415dcea8e7ecf2ec469b5 to < 67e467a11f62ff64ad219dc6aa5459e132c79d14affected
Linux Linux
Default version status: affected
6.8affected0 to < 6.8unaffected6.12.80 to ≤ 6.12.*unaffected6.18.21 to ≤ 6.18.*unaffected6.19.11 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected