general protection fault, probably for non-canonical address 0xfb87fc8f600010e4: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xdc40047b00008720-0xdc40047b00008727] CPU: 1 PID: 31414 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline] RIP: 0010:__mutex_lock+0xec/0x1350 kernel/locking/mutex.c:747 Code: d0 7c 08 84 d2 0f 85 58 0f 00 00 8b 15 6d e7 98 07 85 d2 75 29 48 8d 7d 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 40 0f 00 00 48 3b 6d 60 0f 85 a5 08 00 00 bf 01 RSP: 0018:ffffc90005107af8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1b88008f600010e4 RSI: 00000000ffffffff RDI: dc40047b00008720 RBP: dc40047b000086c0 R08: ffffffff84707f10 R09: 0000000000000000 R10: 00000000ffff8880 R11: 000000000008c07d R12: 0000000000000000 R13: dffffc0000000000 R14: 00000000ffff8880 R15: ffff8880288d0004 FS: 000055555674a400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f223000 CR3: 000000001dd24000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000004800 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_gem_object_handle_put_unlocked+0x90/0x390 drivers/gpu/drm/drm_gem.c:217 drm_gem_object_release_handle+0x93/0xb0 drivers/gpu/drm/drm_gem.c:245 idr_for_each+0x113/0x220 lib/idr.c:208 drm_gem_release+0x22/0x30 drivers/gpu/drm/drm_gem.c:918 drm_file_free+0x7bb/0xb90 drivers/gpu/drm/drm_file.c:276 drm_release+0x1a6/0x4d0 drivers/gpu/drm/drm_file.c:490 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f462203d37b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe7dd6d670 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f462203d37b RDX: 00007f46221b0288 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f46221ad980 R08: 0000000000000000 R09: 00007f46221b0290 R10: 00007ffe7dd6d770 R11: 0000000000000293 R12: 0000000000114656 R13: 00007ffe7dd6d770 R14: 00007f46221abf80 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline] RIP: 0010:__mutex_lock+0xec/0x1350 kernel/locking/mutex.c:747 Code: d0 7c 08 84 d2 0f 85 58 0f 00 00 8b 15 6d e7 98 07 85 d2 75 29 48 8d 7d 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 40 0f 00 00 48 3b 6d 60 0f 85 a5 08 00 00 bf 01 RSP: 0018:ffffc90005107af8 EFLAGS: 00010a06 ---------------- Code disassembly (best guess): 0: d0 7c 08 84 sarb -0x7c(%rax,%rcx,1) 4: d2 0f rorb %cl,(%rdi) 6: 85 58 0f test %ebx,0xf(%rax) 9: 00 00 add %al,(%rax) b: 8b 15 6d e7 98 07 mov 0x798e76d(%rip),%edx # 0x798e77e 11: 85 d2 test %edx,%edx 13: 75 29 jne 0x3e 15: 48 8d 7d 60 lea 0x60(%rbp),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 40 0f 00 00 jne 0xf74 34: 48 3b 6d 60 cmp 0x60(%rbp),%rbp 38: 0f 85 a5 08 00 00 jne 0x8e3 3e: bf .byte 0xbf 3f: 01 .byte 0x1