BUG: unable to handle page fault for address: fffffbfff3f8171b #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffe4067 P4D 23ffe4067 PUD 23ffe3067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5837 Comm: syz-executor Not tainted 6.13.0-rc4-syzkaller-00069-g8379578b11d5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189 Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 RSP: 0018:ffffc90000007900 EFLAGS: 00010086 RAX: 000000000172ce01 RBX: 1ffffffff3f8171b RCX: ffffffff817ac1c4 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9fc0b8d8 RBP: ffffffffffffffff R08: ffffffff9fc0b8df R09: 1ffffffff3f8171b R10: dffffc0000000000 R11: fffffbfff3f8171b R12: ffff88805cafa8c4 R13: ffff88805caf9e00 R14: dffffc0000000001 R15: fffffbfff3f8171c FS: 0000555590869500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfff3f8171b CR3: 000000005ca48000 CR4: 0000000000350ef0 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] __lock_acquire+0xc94/0x2100 kernel/locking/lockdep.c:5196 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606 raw_spin_rq_lock kernel/sched/sched.h:1523 [inline] rq_lock kernel/sched/sched.h:1822 [inline] ttwu_queue kernel/sched/core.c:3991 [inline] try_to_wake_up+0x7e2/0x1470 kernel/sched/core.c:4321 hrtimer_wakeup+0x62/0x80 kernel/time/hrtimer.c:1975 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59d/0xd30 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x112/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5243 Code: c9 50 e8 59 0c 0c 00 48 83 c4 08 4c 89 f7 e8 ed 39 00 00 e9 de 04 00 00 4c 89 f7 e8 10 c8 5c 0a e8 1b 8c 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffc900033e7908 EFLAGS: 00000286 RAX: da6ef63ba4fe1b00 RBX: ffff88805caf9e00 RCX: ffffffff9a3ab903 RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb060 RBP: ffffc900033e7950 R08: ffffffff90197cf7 R09: 1ffffffff2032f9e R10: dffffc0000000000 R11: fffffbfff2032f9f R12: 1ffff110170c7edc R13: dffffc0000000000 R14: ffff8880b863e8c0 R15: ffff8880b863f6e0 context_switch kernel/sched/core.c:5372 [inline] __schedule+0x1858/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210 Code: 89 fb e8 23 00 00 00 48 8b 3d 34 ef 8e 0c 48 89 de 5b e9 43 f7 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 00 d6 03 00 65 8b 15 c0 61 RSP: 0018:ffffc900033e7cf8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff88805caf9e00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900033e7e00 R08: ffffffff898973f5 R09: fffff5200067cfb0 R10: dffffc0000000000 R11: fffff5200067cfb0 R12: ffffc900033e7d60 R13: ffff88802351e000 R14: 1ffffffff1a2c1ef R15: ffffffff8d160f78 do_sock_getsockopt+0x36f/0x7e0 net/socket.c:2374 __sys_getsockopt net/socket.c:2403 [inline] __do_sys_getsockopt net/socket.c:2410 [inline] __se_sys_getsockopt net/socket.c:2407 [inline] __x64_sys_getsockopt+0x2a1/0x370 net/socket.c:2407 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8203587a6a Code: ff c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 RSP: 002b:00007fffe06ee0b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 00007fffe06ee140 RCX: 00007f8203587a6a RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fffe06ee0dc R09: 00007fffe06ee4f7 R10: 00007fffe06ee140 R11: 0000000000000212 R12: 00007f8203749bc0 R13: 00007fffe06ee0dc R14: 0000000000000000 R15: 00007f820374b000 Modules linked in: CR2: fffffbfff3f8171b ---[ end trace 0000000000000000 ]--- RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189 Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 RSP: 0018:ffffc90000007900 EFLAGS: 00010086 RAX: 000000000172ce01 RBX: 1ffffffff3f8171b RCX: ffffffff817ac1c4 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9fc0b8d8 RBP: ffffffffffffffff R08: ffffffff9fc0b8df R09: 1ffffffff3f8171b R10: dffffc0000000000 R11: fffffbfff3f8171b R12: ffff88805cafa8c4 R13: ffff88805caf9e00 R14: dffffc0000000001 R15: fffffbfff3f8171c FS: 0000555590869500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfff3f8171b CR3: 000000005ca48000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess), 7 bytes skipped: 0: df 4f 8d fisttps -0x73(%rdi) 3: 3c 31 cmp $0x31,%al 5: 4c 89 fd mov %r15,%rbp 8: 4c 29 dd sub %r11,%rbp b: 48 83 fd 10 cmp $0x10,%rbp f: 7f 29 jg 0x3a 11: 48 85 ed test %rbp,%rbp 14: 0f 84 3e 01 00 00 je 0x158 1a: 4c 89 cd mov %r9,%rbp 1d: 48 f7 d5 not %rbp 20: 48 01 dd add %rbx,%rbp * 23: 41 80 3b 00 cmpb $0x0,(%r11) <-- trapping instruction 27: 0f 85 c9 01 00 00 jne 0x1f6 2d: 49 ff c3 inc %r11 30: 48 ff c5 inc %rbp 33: 75 ee jne 0x23 35: e9 .byte 0xe9 36: 1e (bad) 37: 01 00 add %eax,(%rax)