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block5.9-2020-10-08

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Merge tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes that should go into this release:

   - NVMe controller error path reference fix (Chaitanya)

   - Fix regression with IBM partitions on non-dasd devices (Christoph)

   - Fix a missing clear in the compat CDROM packet structure (Peilin)"

* tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-block:
  partitions/ibm: fix non-DASD devices
  nvme-core: put ctrl ref when module ref get fail
  block/scsi-ioctl: Fix kernel-infoleak in scsi_put_cdrom_generic_arg()
This commit is contained in:
Linus Torvalds 2020-10-08 18:48:34 -07:00
commit 583090b1b8
3 changed files with 7 additions and 5 deletions
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7
block/partitions/ibm.c
View File

@ -305,8 +305,6 @@ int ibm_partition(struct parsed_partitions *state)
if (!disk->fops->getgeo)
goto out_exit;
fn = symbol_get(dasd_biodasdinfo);
if (!fn)
goto out_exit;
blocksize = bdev_logical_block_size(bdev);
if (blocksize <= 0)
goto out_symbol;
@ -326,7 +324,7 @@ int ibm_partition(struct parsed_partitions *state)
geo->start = get_start_sect(bdev);
if (disk->fops->getgeo(bdev, geo))
goto out_freeall;
if (fn(disk, info)) {
if (!fn || fn(disk, info)) {
kfree(info);
info = NULL;
}
@ -370,7 +368,8 @@ out_nolab:
out_nogeo:
kfree(info);
out_symbol:
symbol_put(dasd_biodasdinfo);
if (fn)
symbol_put(dasd_biodasdinfo);
out_exit:
return res;
}

1
block/scsi_ioctl.c
View File

@ -651,6 +651,7 @@ struct compat_cdrom_generic_command {
compat_int_t stat;
compat_caddr_t sense;
unsigned char data_direction;
unsigned char pad[3];
compat_int_t quiet;
compat_int_t timeout;
compat_caddr_t reserved[1];

4
drivers/nvme/host/core.c
View File

@ -3265,8 +3265,10 @@ static int nvme_dev_open(struct inode *inode, struct file *file)
}
nvme_get_ctrl(ctrl);
if (!try_module_get(ctrl->ops->module))
if (!try_module_get(ctrl->ops->module)) {
nvme_put_ctrl(ctrl);
return -EINVAL;
}
file->private_data = ctrl;
return 0;