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| author | Bart Van Assche <bvanassche@acm.org> | 2022-06-16 00:00:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-22 15:13:17 +0300 |
| commit | 7fa28a7c3d74933a4fc22d341b60927952f31c19 (patch) | |
| tree | 718b52829aeb549a1fdb11838ef253b59d4eb03a /scripts/faddr2line | |
| parent | 2d825fb53b9a7e6fb2711a0eca2c6fa03f8f8a73 (diff) | |
| download | linux-7fa28a7c3d74933a4fc22d341b60927952f31c19.tar.xz | |
block: Fix handling of offline queues in blk_mq_alloc_request_hctx()
[ Upstream commit 14dc7a18abbe4176f5626c13c333670da8e06aa1 ]
This patch prevents that test nvme/004 triggers the following:
UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9
index 512 is out of range for type 'long unsigned int [512]'
Call Trace:
show_stack+0x52/0x58
dump_stack_lvl+0x49/0x5e
dump_stack+0x10/0x12
ubsan_epilogue+0x9/0x3b
__ubsan_handle_out_of_bounds.cold+0x44/0x49
blk_mq_alloc_request_hctx+0x304/0x310
__nvme_submit_sync_cmd+0x70/0x200 [nvme_core]
nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics]
nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop]
nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop]
nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics]
nvmf_dev_write+0xae/0x111 [nvme_fabrics]
vfs_write+0x144/0x560
ksys_write+0xb7/0x140
__x64_sys_write+0x42/0x50
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Fixes: 20e4d8139319 ("blk-mq: simplify queue mapping & schedule with each possisble CPU")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220615210004.1031820-1-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/faddr2line')
0 files changed, 0 insertions, 0 deletions