UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

partitions/aix: append null character to print data from disk 

Even if properly initialized, the lvname array (i.e., strings)
is read from disk, and might contain corrupt data (e.g., lack
the null terminating character for strings).

So, make sure the partition name string used in pr_warn() has
the null terminating character.

Fixes: 6ceea22bbb ("partitions: add aix lvm partition support files")
Suggested-by: Daniel J. Axtens <daniel.axtens@canonical.com>
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Mauricio Faria de Oliveira 2018-07-25 22:46:29 -03:00 committed by Jens Axboe
parent 14cb2c8a6c
commit d43fdae7ba
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
block/partitions/aix.c
View File

@ -283,10 +283,14 @@ int aix_partition(struct parsed_partitions *state)
next_lp_ix += 1;
}
for (i = 0; i < state->limit; i += 1)
if (lvip[i].pps_found && !lvip[i].lv_is_contiguous)
if (lvip[i].pps_found && !lvip[i].lv_is_contiguous) {
char tmp[sizeof(n[i].name) + 1]; // null char
snprintf(tmp, sizeof(tmp), "%s", n[i].name);
pr_warn("partition %s (%u pp's found) is "
"not contiguous\n",
n[i].name, lvip[i].pps_found);
tmp, lvip[i].pps_found);
}
kfree(pvd);
}
kfree(n);