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| author | Colin Ian King <colin.king@canonical.com> | 2020-12-07 17:54:46 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-12-07 18:00:32 +0300 |
| commit | 733c15bd3a944b8eeaacdddf061759b6a83dd3f4 (patch) | |
| tree | eb2e3e2f2ab8a6c2eefcebd373d2dba1b172336f /drivers/md/dm-switch.c | |
| parent | 64e8a6ece1a5b1fa21316918053d068baeac84af (diff) | |
| download | linux-733c15bd3a944b8eeaacdddf061759b6a83dd3f4.tar.xz | |
block/rnbd: fix a null pointer dereference on dev->blk_symlink_name
Currently in the case where dev->blk_symlink_name fails to be allocates
the error return path attempts to set an end-of-string character to
the unallocated dev->blk_symlink_name causing a null pointer dereference
error. Fix this by returning with an explicity ENOMEM error (which also
is missing in the original code as was not initialized).
Fixes: 1eb54f8f5dd8 ("block/rnbd: client: sysfs interface functions")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Dereference after null check")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm-switch.c')
0 files changed, 0 insertions, 0 deletions