Ubuntu 23.04 (Lunar Lobster) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: linux (Ubuntu Lunar)
Status: Fix Committed => Won't Fix
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https://bugs.launchpad.net/bugs/2027773
Title:
UBSAN: shift-out-of-bounds in amd_sfh
Status in HWE Next:
New
Status in OEM Priority Project:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.0 source package in Jammy:
Won't Fix
Status in linux-oem-6.1 source package in Jammy:
Fix Released
Status in linux source package in Lunar:
Won't Fix
Status in linux-oem-6.0 source package in Lunar:
Invalid
Status in linux-oem-6.1 source package in Lunar:
Invalid
Status in linux source package in Mantic:
Fix Released
Status in linux-oem-6.0 source package in Mantic:
Invalid
Status in linux-oem-6.1 source package in Mantic:
Invalid
Bug description:
[SRU Justification]
[Impact]
UBSAN: shift-out-of-bounds in
drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50
[ 7.928631] shift exponent 103 is too large for 64-bit type 'long unsigned
int'
[ 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>
[Fix]
Fixes in:
* commit c1685a862a4b ("HID: amd_sfh: Rename the float32 variable")
* commit 878543661764 ("HID: amd_sfh: Fix for shift-out-of-bounds")
[Test Case]
The affected platform should no longer has such error dumped in kernel dmesg
at
boot.
[Where problems could occur]
This renamed a variable and corrected the way shift offset is calculated. No
known side effect.
[Other Info]
The affects kernel >= v6.0 and < v6.5, so Unstable/Mantis/Lunar/OEM-6.1 are
nominated for fix.
========== original bug report ==========
UBSAN: shift-out-of-bounds in
drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50
[ 7.928631] shift exponent 103 is too large for 64-bit type 'long unsigned
int'
[ 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.
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