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BUG: KASAN: slab-out-of-bounds in user_mode arch/x86/include/asm/ptrace.h:131 [inline]
BUG: KASAN: slab-out-of-bounds in trace_page_fault_entries arch/x86/mm/fault.c:1516 [inline]
BUG: KASAN: slab-out-of-bounds in do_page_fault+0x6d/0x320 arch/x86/mm/fault.c:1528
Read of size 8 at addr ffff8881e56a7e80 by task kworker/u4:4/510

CPU: 0 PID: 510 Comm: kworker/u4:4 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
usercopy: Kernel memory overwrite attempt detected to SLUB object 'kmalloc-4k' (offset 6432, size 8)!
usercopy: Kernel memory overwrite attempt detected to SLUB object 'kmalloc-4k' (offset 5728, size 2)!
usercopy: Kernel memory overwrite attempt detected to SLUB object 'kmalloc-4k' (offset 5024, size 2)!
usercopy: Kernel memory overwrite attempt detected to SLUB object 'kmalloc-4k' (offset 4320, size 2)!
------------[ cut here ]------------
kernel BUG at mm/usercopy.c:99!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 510 Comm: kworker/u4:4 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:usercopy_abort+0x85/0x90 mm/usercopy.c:87
Code: 89 cb 49 c7 c6 40 7a c3 84 4c 0f 44 f6 48 c7 c7 80 7a c3 84 4c 89 de 4c 89 c9 4d 89 d1 50 53 41 56 e8 7f c1 ff ff 48 83 c4 18 <0f> 0b 00 00 90 90 00 00 90 90 00 55 48 89 e5 53 48 89 fb e8 d3 1e
RSP: 0018:ffff8881e56a6fd0 EFLAGS: 00010092