general protection fault, probably for non-canonical address 0xffff51806f961b88: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xfffaac037cb0dc40-0xfffaac037cb0dc47] CPU: 0 PID: 24618 Comm: syz-executor.5 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: 00010082 RAX: ffffc90017cbf608 RBX: 0000000000000001 RCX: ffff888057ca2580 RDX: ffff888057ca2580 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007ac0 R08: ffffffff810117eb R09: fffffbfff167da99 R10: fffffbfff167da99 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffc90017cbf608 R15: dffffc0000000000 FS: 00007f39c8bf9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001590004 CR3: 00000000a0bbb000 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:__sanitizer_cov_trace_pc+0x56/0x60 kernel/kcov.c:205 Code: 2c 8b 91 08 14 00 00 83 fa 02 75 21 48 8b 91 10 14 00 00 48 8b 32 48 8d 7e 01 8b 89 0c 14 00 00 48 39 cf 73 08 48 89 44 f2 08 <48> 89 3a c3 66 0f 1f 44 00 00 4c 8b 04 24 65 48 8b 14 25 00 fe 01 RSP: 0018:ffffc90017cbf620 EFLAGS: 0000028f RAX: ffffffff83d53b7f RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90013b94000 RSI: 0000000000033227 RDI: 0000000000033228 RBP: 0000000000000000 R08: ffffffff83d53afc R09: ffffffff83d5316c R10: 0000000000000002 R11: ffff888057ca2580 R12: dffffc0000000000 R13: ffff888001011a00 R14: ffff888218a3022d R15: 0000000000000000 slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:156 [inline] cfb_imageblit+0xc7f/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:302 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 vfs_write+0x2d3/0xd10 fs/read_write.c:576 ksys_write+0x11b/0x220 fs/read_write.c:631 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:00007f39c8bf8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000038980 RCX: 000000000045d5f9 RDX: 0000000000001006 RSI: 0000000020001440 RDI: 0000000000000005 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007fffd73fd95f R14: 00007f39c8bf99c0 R15: 000000000118cf4c Modules linked in: ---[ end trace 28ac3086c7291b1e ]--- 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: 00010082 RAX: ffffc90017cbf608 RBX: 0000000000000001 RCX: ffff888057ca2580 RDX: ffff888057ca2580 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007ac0 R08: ffffffff810117eb R09: fffffbfff167da99 R10: fffffbfff167da99 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffc90017cbf608 R15: dffffc0000000000 FS: 00007f39c8bf9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001590004 CR3: 00000000a0bbb000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400