Re: [Linux-kernel-mentees] [PATCH net] net/smc: Prevent kernel-infoleak in __smc_diag_dump()

On 8/1/20 9:44 PM, Peilin Ye wrote: > __smc_diag_dump() is potentially copying uninitialized kernel stack memory > into socket buffers, since the compiler may leave a 4-byte hole near the > beginning of `struct smcd_diag_dmbinfo`. Fix it by initializing `dinfo` > with memset(). > > Cc:

[Linux-kernel-mentees] [PATCH net] net/smc: Prevent kernel-infoleak in __smc_diag_dump()

__smc_diag_dump() is potentially copying uninitialized kernel stack memory into socket buffers, since the compiler may leave a 4-byte hole near the beginning of `struct smcd_diag_dmbinfo`. Fix it by initializing `dinfo` with memset(). Cc: sta...@vger.kernel.org Fixes: 4b1b7d3b30a6 ("net/smc: add