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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+0x66/0x330 arch/x86/mm/fault.c:1528
Read of size 8 at addr ffff8881ee8dfe40 by task kworker/u4:3/104

CPU: 1 PID: 104 Comm: kworker/u4:3 Not tainted 5.4.290-syzkaller-05053-g41adfeb3d639 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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Bad or missing usercopy whitelist? Kernel memory overwrite attempt detected to SLUB object 'task_struct' (offset 2880, size 8)!
WARNING: CPU: 1 PID: 104 at mm/usercopy.c:80 usercopy_warn+0xaf/0xc0 mm/usercopy.c:75
Modules linked in:
CPU: 1 PID: 104 Comm: kworker/u4:3 Not tainted 5.4.290-syzkaller-05053-g41adfeb3d639 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:usercopy_warn+0xaf/0xc0 mm/usercopy.c:75
Code: c6 05 60 f6 b0 04 01 48 c7 c5 c0 95 e3 84 48 0f 44 e8 48 c7 c7 40 94 e3 84 4d 89 e1 41 57 41 56 55 e8 45 74 a1 ff 48 83 c4 18 <0f> 0b e9 73 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 41 56 53 4d 89
RSP: 0018:ffff8881ee8df8a0 EFLAGS: 00010096
RAX: 2026b10fecb85100 RBX: ffffffff855a7873 RCX: ffff8881ee8dde80
RDX: 0000000000000000 RSI: 0000000080000044 RDI: 0000000000000000
RBP: ffffffff84e395c0 R08: ffffffff814d6db2 R09: ffffed103ede5262
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff84a73c00
R13: dffffc0000000000 R14: 0000000000000b40 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe8ffffd14418 CR3: 00000001f5c2a000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace: