| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 21 Jan 2008 14:42:11 -0600 From: Steve Wise <swise@...ngridcomputing.com> To: rdreier@...co.com Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, general@...ts.openfabrics.org Subject: [PATCH RESEND 2/3] RDMA/cxgb3: fix page shift calculation in build_phys_page_list() RDMA/cxgb3: fix page shift calculation in build_phys_page_list() The existing logic incorrectly maps this buffer list: 0: addr 0x10001000, size 0x1000 1: addr 0x10002000, size 0x1000 To this bogus page list: 0: 0x10000000 1: 0x10002000 The shift calculation must also take into account the address of the first entry masked by the page_mask as well as the last address+size rounded up to the next page size. Signed-off-by: Steve Wise <swise@...ngridcomputing.com> --- drivers/infiniband/hw/cxgb3/iwch_mem.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c index a6c2c4b..73bfd16 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_mem.c +++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c @@ -122,6 +122,13 @@ int build_phys_page_list(struct ib_phys_buf *buffer_list, *total_size += buffer_list[i].size; if (i > 0) mask |= buffer_list[i].addr; + else + mask |= buffer_list[i].addr & PAGE_MASK; + if (i != num_phys_buf - 1) + mask |= buffer_list[i].addr + buffer_list[i].size; + else + mask |= (buffer_list[i].addr + buffer_list[i].size + + PAGE_SIZE - 1) & PAGE_MASK; } if (*total_size > 0xFFFFFFFFULL) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists