Replace one-element array with flexible-array member in struct sgmapraw. Issue found with the help of Coccinelle and audited and fixed, manually. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/ClangBuiltLinux/linux/issues/1851 Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> --- drivers/scsi/aacraid/aachba.c | 4 ++-- drivers/scsi/aacraid/aacraid.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index fff0550e02e4..b3c0c2255e55 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -1267,7 +1267,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3 return ret; command = ContainerRawIo; fibsize = sizeof(struct aac_raw_io) + - ((le32_to_cpu(readcmd->sg.count)-1) * sizeof(struct sgentryraw)); + le32_to_cpu(readcmd->sg.count) * sizeof(struct sgentryraw); } BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1401,7 +1401,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u return ret; command = ContainerRawIo; fibsize = sizeof(struct aac_raw_io) + - ((le32_to_cpu(writecmd->sg.count)-1) * sizeof (struct sgentryraw)); + le32_to_cpu(writecmd->sg.count) * sizeof(struct sgentryraw); } BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index d1fc1ce2e36d..87015dd2abd9 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -527,7 +527,7 @@ struct user_sgmap64 { struct sgmapraw { __le32 count; - struct sgentryraw sg[1]; + struct sgentryraw sg[]; }; struct user_sgmapraw { -- 2.34.1
