diff options
author | Andreas Gruenbacher <agruenba@redhat.com> | 2017-10-09 11:13:18 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-18 09:20:42 +0200 |
commit | f3b538493e665aa083388818b975ccf27979dec6 (patch) | |
tree | 4c7f22a4114c41fda53066248751fc071390231d /block | |
parent | ac94abbb7941933946bbb7ce9aca7365fa7d5e74 (diff) |
direct-io: Prevent NULL pointer access in submit_page_section
commit 899f0429c7d3eed886406cd72182bee3b96aa1f9 upstream.
In the code added to function submit_page_section by commit b1058b981,
sdio->bio can currently be NULL when calling dio_bio_submit. This then
leads to a NULL pointer access in dio_bio_submit, so check for a NULL
bio in submit_page_section before trying to submit it instead.
Fixes xfstest generic/250 on gfs2.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions