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kernel BUG at kernel/sched/core.c:6785!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 8349 Comm: syz.3.561 Not tainted 6.15.0-rc5-syzkaller-g0d8d44db295c #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:do_task_dead+0xdd/0x110 kernel/sched/core.c:6785
Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 28 81 4b 2c 00 80 00 00 31 ff e8 d4 5e e3 09 90 <0f> 0b be 80 00 00 00 65 48 8b 3d dc d7 19 12 e8 3f 8d fe ff e9 5e
RSP: 0018:ffffc9000ca27de0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88803b3b4880 RCX: ffffffff8188ef61
RDX: 0000000000000000 RSI: fffff52001944f9d RDI: ffffffff8dcecd08
RBP: 0000000000000282 R08: 0000000000000000 R09: fffffbfff210a082
R10: ffffffff90850417 R11: 0000000000000000 R12: ffffffff818a378e
R13: 0000000000006778 R14: fd3599393ade0300 R15: ffffc9000ca27e68
FS:  0000000000000000(0000) GS:ffff8880d6adf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ff7000 CR3: 000000000e180000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_task_dead+0xdd/0x110 kernel/sched/core.c:6785
Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 28 81 4b 2c 00 80 00 00 31 ff e8 d4 5e e3 09 90 <0f> 0b be 80 00 00 00 65 48 8b 3d dc d7 19 12 e8 3f 8d fe ff e9 5e
RSP: 0018:ffffc9000ca27de0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88803b3b4880 RCX: ffffffff8188ef61
RDX: 0000000000000000 RSI: fffff52001944f9d RDI: ffffffff8dcecd08
RBP: 0000000000000282 R08: 0000000000000000 R09: fffffbfff210a082
R10: ffffffff90850417 R11: 0000000000000000 R12: ffffffff818a378e
R13: 0000000000006778 R14: fd3599393ade0300 R15: ffffc9000ca27e68
FS:  0000000000000000(0000) GS:ffff8880d6adf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ff7000 CR3: 000000000e180000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400