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| author | Richard Weinberger <richard@nod.at> | 2025-04-18 10:02:50 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2025-04-22 09:50:28 +0200 |
| commit | 3d7aa0c7b4e96cd460826d932e44710cdeb3378b (patch) | |
| tree | 3a70c7265558509dbc5ea2d8917293574d428f60 /rust/helpers/helpers.c | |
| parent | 81dd1feb19c7a812e51fa6e2f988f4def5e6ae39 (diff) | |
| download | linux-3d7aa0c7b4e96cd460826d932e44710cdeb3378b.tar.gz linux-3d7aa0c7b4e96cd460826d932e44710cdeb3378b.tar.bz2 linux-3d7aa0c7b4e96cd460826d932e44710cdeb3378b.zip | |
nvmet: fix out-of-bounds access in nvmet_enable_port
When trying to enable a port that has no transport configured yet,
nvmet_enable_port() uses NVMF_TRTYPE_MAX (255) to query the transports
array, causing an out-of-bounds access:
[ 106.058694] BUG: KASAN: global-out-of-bounds in nvmet_enable_port+0x42/0x1da
[ 106.058719] Read of size 8 at addr ffffffff89dafa58 by task ln/632
[...]
[ 106.076026] nvmet: transport type 255 not supported
Since commit 200adac75888, NVMF_TRTYPE_MAX is the default state as configured by
nvmet_ports_make().
Avoid this by checking for NVMF_TRTYPE_MAX before proceeding.
Fixes: 200adac75888 ("nvme: Add PCI transport type")
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Diffstat (limited to 'rust/helpers/helpers.c')
0 files changed, 0 insertions, 0 deletions