general protection fault, probably for non-canonical address 0xffff5180bc9395b8: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xfffaac05e49cadc0-0xfffaac05e49cadc7] CPU: 0 PID: 19983 Comm: syz-executor.4 Not tainted 5.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:perf_misc_flags+0x125/0x150 arch/x86/events/core.c:2638 Code: e4 48 83 e6 03 41 0f 94 c4 31 ff e8 95 fa 73 00 bb 02 00 00 00 4c 29 e3 49 81 c6 90 00 00 00 4c 89 f0 48 c1 e8 00 00 00 00 38 <00> 74 08 4c 89 f7 e8 b0 bc b3 00 41 8b 06 83 e0 08 48 c1 e0 0b 48 RSP: 0018:ffffc90000007a08 EFLAGS: 00010086 RAX: ffffc900156df578 RBX: 0000000000000001 RCX: ffff8880a725a040 RDX: ffff8880a725a040 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007ac0 R08: ffffffff810117eb R09: fffffbfff167d699 R10: fffffbfff167d699 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffc900156df578 R15: dffffc0000000000 FS: 00007fc8c3e5b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 000000009aa46000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_prepare_sample+0xea/0x19f0 kernel/events/core.c:7001 __perf_event_output kernel/events/core.c:7170 [inline] perf_event_output_forward+0xa7/0x1c0 kernel/events/core.c:7190 __perf_event_overflow+0x1b9/0x340 kernel/events/core.c:8845 perf_swevent_hrtimer+0x43c/0x4d0 kernel/events/core.c:10247 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1588 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1650 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] sysvec_apic_timer_interrupt+0x94/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:177 [inline] RIP: 0010:cfb_imageblit+0xb10/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:302 Code: 06 ec 9f fd 45 89 e6 89 e9 41 d3 e6 41 09 de 89 ef 8b 5c 24 28 89 de e8 7e e9 9f fd 39 dd 73 0a e8 d5 e7 9f fd eb 42 0f 1f 00 <48> 8b 44 24 30 44 89 30 48 83 c0 04 48 89 44 24 30 89 ef 89 de e8 RSP: 0018:ffffc900156df598 EFLAGS: 000002be RAX: 0000000000000002 RBX: 000000000000001c RCX: 000000000000001c RDX: ffff8880a725a040 RSI: 000000000000001c RDI: 000000000000001c RBP: 000000000000001c R08: ffffffff83d525f2 R09: ffffffff83d51d5c R10: 0000000000000002 R11: ffff8880a725a040 R12: 0000000000000000 R13: ffff888218a190bf R14: 0000000000000000 R15: 0000000000000000 bit_putcs+0x17ac/0x1bf0 drivers/video/fbdev/core/bitblit.c:105 fbcon_putcs+0x790/0xaf0 drivers/video/fbdev/core/fbcon.c:1308 con_flush drivers/tty/vt/vt.c:2575 [inline] vc_con_write_normal drivers/tty/vt/vt.c:2803 [inline] do_con_write+0x115b/0xd580 drivers/tty/vt/vt.c:2910 con_write+0x20/0x40 drivers/tty/vt/vt.c:3250 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0xcbf/0x1170 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x593/0x940 drivers/tty/tty_io.c:1046 do_loop_readv_writev fs/read_write.c:737 [inline] do_iter_write+0x441/0x610 fs/read_write.c:1020 vfs_writev fs/read_write.c:1091 [inline] do_writev+0x23f/0x4a0 fs/read_write.c:1134 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5f9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc8c3e5ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000039c40 RCX: 000000000045d5f9 RDX: 0000000000000006 RSI: 0000000020000400 RDI: 0000000000000004 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffed5ed119f R14: 00007fc8c3e5b9c0 R15: 000000000118cf4c Modules linked in: ---[ end trace 68372b87dd1a04f3 ]--- RIP: 0010:perf_misc_flags+0x125/0x150 arch/x86/events/core.c:2638 Code: e4 48 83 e6 03 41 0f 94 c4 31 ff e8 95 fa 73 00 bb 02 00 00 00 4c 29 e3 49 81 c6 90 00 00 00 4c 89 f0 48 c1 e8 00 00 00 00 38 <00> 74 08 4c 89 f7 e8 b0 bc b3 00 41 8b 06 83 e0 08 48 c1 e0 0b 48 RSP: 0018:ffffc90000007a08 EFLAGS: 00010086 RAX: ffffc900156df578 RBX: 0000000000000001 RCX: ffff8880a725a040 RDX: ffff8880a725a040 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007ac0 R08: ffffffff810117eb R09: fffffbfff167d699 R10: fffffbfff167d699 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffc900156df578 R15: dffffc0000000000 FS: 00007fc8c3e5b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 000000009aa46000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400