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(parent: f19d1e3) | patch
block: prevent an integer overflow in bvec_try_merge_hw_page
authorChristoph Hellwig <hch@lst.de>
Mon, 4 Dec 2023 17:34:18 +0000 (18:34 +0100)
committerJens Axboe <axboe@kernel.dk>
Fri, 15 Dec 2023 14:34:27 +0000 (07:34 -0700)
commit3f034c374ad55773c12dd8f3c1607328e17c0072
tree63d40bdc2f1ccf202c00d9edf11aeeb207943179tree | snapshot
parentf19d1e3b17acc8173cd83b189f4c9506889b1c49commit | diff
block: prevent an integer overflow in bvec_try_merge_hw_page

Reordered a check to avoid a possible overflow when adding len to bv_len.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20231204173419.782378-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/bio.c diff | blob | history
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