kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3187 Comm: syz.2.694 Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__write_once_size include/linux/compiler.h:295 [inline] RIP: 0010:__hlist_del include/linux/list.h:789 [inline] RIP: 0010:detach_timer kernel/time/timer.c:824 [inline] RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline] RIP: 0010:__run_timers+0x77f/0xbe0 kernel/time/timer.c:1817 Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 05 51 3f 00 4d 8b 27 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 63 51 3f 00 4d 89 2c 24 4d 85 ed 74 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 1ffff11039b39639 RCX: dffffc0000000000 RDX: 0000000000000102 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000000 R13: dead000000000122 R14: 1ffff11039b39638 R15: ffff8881cd9cb1c8 FS: 00007fb0b32916c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffa619d49c8 CR3: 00000001d11a2000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x195/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:539 [inline] smp_apic_timer_interrupt+0x11a/0x490 arch/x86/kernel/apic/apic.c:1161 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834 RIP: 0010:zap_pte_range mm/memory.c:1075 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1222 [inline] RIP: 0010:zap_pud_range mm/memory.c:1251 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1272 [inline] RIP: 0010:unmap_page_range+0xbe2/0x2620 mm/memory.c:1293 Code: de 48 83 e6 08 31 ff e8 8c 74 d9 ff 48 83 e3 08 0f 85 2c 0b 00 00 4c 89 fe 48 81 e6 01 01 00 00 31 ff e8 71 74 d9 ff 4c 89 f8 <48> 25 01 01 00 00 0f 84 88 00 00 00 48 8b 7c 24 60 48 8b 74 24 08 RSP: 0018:ffff8881dfde75a0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: 80000001e11ff007 RBX: 0000000000000000 RCX: ffffffff818ad9ad RDX: ffff8881ea002f40 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff8881dfde7790 R08: ffffffff818ad9ef R09: ffffed103d4005e9 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881d135be68 R14: 1ffff1103a26b7cd R15: 80000001e11ff007 unmap_single_vma mm/memory.c:1338 [inline] unmap_vmas+0x355/0x4b0 mm/memory.c:1370 exit_mmap+0x2bc/0x520 mm/mmap.c:3191 __mmput+0x8e/0x2c0 kernel/fork.c:1101 exit_mm kernel/exit.c:538 [inline] do_exit+0xc08/0x2bc0 kernel/exit.c:848 do_group_exit+0x138/0x300 kernel/exit.c:984 get_signal+0xdb1/0x1440 kernel/signal.c:2738 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7fb0b4c48169 Code: Bad RIP value. RSP: 002b:00007fb0b3291038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: 0000000000000000 RBX: 00007fb0b4e61080 RCX: 00007fb0b4c48169 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 00007fb0b4cc92a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000400000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb0b4e61080 R15: 00007fffc6355658 Modules linked in: ---[ end trace 4ea46a592f880fd4 ]--- RIP: 0010:__write_once_size include/linux/compiler.h:295 [inline] RIP: 0010:__hlist_del include/linux/list.h:789 [inline] RIP: 0010:detach_timer kernel/time/timer.c:824 [inline] RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline] RIP: 0010:__run_timers+0x77f/0xbe0 kernel/time/timer.c:1817 Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 05 51 3f 00 4d 8b 27 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 63 51 3f 00 4d 89 2c 24 4d 85 ed 74 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 1ffff11039b39639 RCX: dffffc0000000000 RDX: 0000000000000102 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000000 R13: dead000000000122 R14: 1ffff11039b39638 R15: ffff8881cd9cb1c8 FS: 00007fb0b32916c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb0b4c4813f CR3: 00000001d11a2000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 7 bytes skipped: 0: df 80 3c 03 00 74 filds 0x7400033c(%rax) 6: 08 4c 89 ff or %cl,-0x1(%rcx,%rcx,4) a: e8 05 51 3f 00 call 0x3f5114 f: 4d 8b 27 mov (%r15),%r12 12: 4c 89 e0 mov %r12,%rax 15: 48 c1 e8 03 shr $0x3,%rax 19: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 20: fc ff df * 23: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 27: 74 08 je 0x31 29: 4c 89 e7 mov %r12,%rdi 2c: e8 63 51 3f 00 call 0x3f5194 31: 4d 89 2c 24 mov %r13,(%r12) 35: 4d 85 ed test %r13,%r13 38: 74 .byte 0x74