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| author | Mauricio Faria de Oliveira <mfo@canonical.com> | 2018-07-25 22:46:29 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-19 22:47:15 +0200 |
| commit | 6bccef1e7525b20d63cf38057cd01a9a14513696 (patch) | |
| tree | f951411b1c76def6d2881d0513624babec03901a /block | |
| parent | 2eea5a3344282c69561d3fe6b576c509b0eb2db8 (diff) | |
| download | linux-stable-6bccef1e7525b20d63cf38057cd01a9a14513696.tar.gz linux-stable-6bccef1e7525b20d63cf38057cd01a9a14513696.tar.bz2 linux-stable-6bccef1e7525b20d63cf38057cd01a9a14513696.zip | |
partitions/aix: append null character to print data from disk
[ Upstream commit d43fdae7bac2def8c4314b5a49822cb7f08a45f1 ]
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: 6ceea22bbbc8 ("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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/partitions/aix.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/block/partitions/aix.c b/block/partitions/aix.c index f3ed7b2d89bf..fa74698e12a6 100644 --- a/block/partitions/aix.c +++ b/block/partitions/aix.c @@ -281,10 +281,14 @@ 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); |