Comment 0 for bug 2027773

Revision history for this message
You-Sheng Yang (vicamo) wrote : UBSAN errors in amd_sfh

UBSAN: shift-out-of-bounds in drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50
[ 9.877309] Workqueue: events amd_sfh_work_buffer [amd_sfh]
[ 9.877327] Call Trace:
[ 9.877331] <TASK>
[ 9.877335] dump_stack_lvl+0x49/0x63
[ 9.877346] dump_stack+0x10/0x16
[ 9.877348] ubsan_epilogue+0x9/0x36
[ 9.877357] __ubsan_handle_shift_out_of_bounds.cold+0x61/0xef
[ 9.877363] ? _raw_spin_lock+0x17/0x50
[ 9.877369] ? raw_spin_rq_lock_nested+0x2e/0xa0
[ 9.877378] ? psi_group_change+0x1e2/0x4a0
[ 9.877385] float_to_int.cold+0x18/0xc8 [amd_sfh]
[ 9.877394] ? get_feature_rep+0xb0/0xb0 [amd_sfh]
[ 9.877402] get_input_rep+0x219/0x2f0 [amd_sfh]
[ 9.877409] ? up+0x37/0x70
[ 9.877414] ? hid_input_report+0x104/0x170 [hid]
[ 9.877428] amd_sfh_work_buffer+0x94/0x150 [amd_sfh]
[ 9.877436] process_one_work+0x21f/0x3f0
[ 9.877443] worker_thread+0x50/0x3e0
[ 9.877446] ? process_one_work+0x3f0/0x3f0
[ 9.877449] kthread+0xfd/0x130
[ 9.877452] ? kthread_complete_and_exit+0x20/0x20
[ 9.877454] ret_from_fork+0x22/0x30
[ 9.877463] </TASK>

Fixes in:
https://github.com/torvalds/linux/commit/c1685a862a4bea863537f06abaa37a123aef493c
https://github.com/torvalds/linux/commit/87854366176403438d01f368b09de3ec2234e0f5

This affects kernel >= v6.0.