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authorTetsuo Handa <[email protected]>2022-11-07 10:21:40 -0800
committerDmitry Torokhov <[email protected]>2022-11-07 10:28:58 -0800
commitb8ebf250997c5fb253582f42bfe98673801ebebd (patch)
tree46101c8341954b318bc7f17700036b866393ec66 /tools/perf/scripts/python/libxed.py
parentc7e37cc6240767f794678d11704935d49cc81d59 (diff)
Input: iforce - invert valid length check when fetching device IDs
syzbot is reporting uninitialized value at iforce_init_device() [1], for commit 6ac0aec6b0a6 ("Input: iforce - allow callers supply data buffer when fetching device IDs") is checking that valid length is shorter than bytes to read. Since iforce_get_id_packet() stores valid length when returning 0, the caller needs to check that valid length is longer than or equals to bytes to read. Reported-by: syzbot <[email protected]> Signed-off-by: Tetsuo Handa <[email protected]> Fixes: 6ac0aec6b0a6 ("Input: iforce - allow callers supply data buffer when fetching device IDs") Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Dmitry Torokhov <[email protected]>
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