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| author | Anas Iqbal <mohd.abd.6602@gmail.com> | 2026-03-31 22:07:39 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-04-01 10:21:13 -0600 |
| commit | 77d8c8d0f1b76a005267ee9714ed98964c87ecc5 (patch) | |
| tree | 4db4d4214c289ee9602eef9f7cf81e9121cfdb93 /drivers/char/drm/git@git.tavy.me:linux.git | |
| parent | a9d008489f0c5304ca7f705348324e47824a7454 (diff) | |
io_uring: cast id to u64 before shifting in io_allocate_rbuf_ring()
Smatch warns:
io_uring/zcrx.c:393 io_allocate_rbuf_ring() warn: should 'id << 16' be a 64 bit type?
The expression 'id << IORING_OFF_PBUF_SHIFT' is evaluated using 32-bit
arithmetic because id is a u32. This may overflow before being promoted
to the 64-bit mmap_offset.
Cast id to u64 before shifting to ensure the shift is performed in
64-bit arithmetic.
Signed-off-by: Anas Iqbal <mohd.abd.6602@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/52400e1b343691416bef3ed3ae287fb1a88d407f.1774780198.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/char/drm/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions