mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-29 22:02:02 +00:00
Code Issues Releases Wiki Activity

IB/hfi1: Reject a zero-length user expected buffer

Browse source 
A zero length user buffer makes no sense and the code
does not handle it correctly.  Instead, reject a
zero length as invalid.

Fixes: 97736f36db ("IB/hfi1: Validate page aligned for a given virtual addres")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328547120.1472310.6362802432127399257.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Dean Luick 2023-01-09 12:31:11 -05:00 committed by Leon Romanovsky
parent 0afec5e9ce
commit 0a0a6e8047
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/infiniband/hw/hfi1/user_exp_rcv.c
View file

@ -256,6 +256,8 @@ int hfi1_user_exp_rcv_setup(struct hfi1_filedata *fd,
if (!PAGE_ALIGNED(tinfo->vaddr))
return -EINVAL;
if (tinfo->length == 0)
return -EINVAL;
tidbuf = kzalloc(sizeof(*tidbuf), GFP_KERNEL);
if (!tidbuf)