invalid opcode in do_syscall

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	invalid opcode in do_syscall_64	2				1	1917d	1917d	0/1	auto-closed as invalid on 2021/01/07 18:51
linux-4.14	invalid opcode in do_syscall_64	2	syz		error	3	1380d	1898d	0/1	upstream: reported syz repro on 2020/09/28 17:19

invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9105 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:prepare_exit_to_usermode arch/x86/entry/common.c:189 [inline] RIP: 0010:syscall_return_slowpath arch/x86/entry/common.c:278 [inline] RIP: 0010:do_syscall_64+0x432/0x790 arch/x86/entry/common.c:304 Code: 41 5c 41 5d 41 5e 5d c3 e8 4b 84 74 00 48 b8 00 00 00 00 00 fc ff df 65 4c 8b 2c 25 c0 1e 02 00 49 8d bd 94 08 00 00 48 00 07 <07> 00 00 00 07 00 00 00 00 00 00 00 00 00 83 c0 03 38 d0 7c 08 84 RSP: 0018:ffffc90001e27f20 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880637d02c0 RCX: ffffffff8100a63d RDX: 0000000000000000 RSI: ffffffff8100a745 RDI: ffff8880637d0b54 RBP: ffffc90001e27f48 R08: ffff8880637d02c0 R09: ffffed100c6fa059 R10: ffffed100c6fa058 R11: ffff8880637d02c7 R12: ffffc90001e27f58 R13: ffff8880637d02c0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000001dec940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe3a8f5f480 CR3: 000000006376d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: entry_SYSCALL_64_after_hwframe+0x49/0xbe BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6376e067 P4D 6376e067 PUD 6376f067 PMD 0 Oops: 0000 [#2] PREEMPT SMP KASAN CPU: 0 PID: 9105 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:x86_add_exclusive+0x290/0x310 arch/x86/events/core.c:383 Code: f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 6e 45 8b 3e 31 ff 44 89 fe e8 8e 01 74 00 45 85 ff 75 66 e8 04 00 74 00 83 c3 01 bf <03> 00 00 00 49 83 c6 04 89 de e8 71 01 74 00 83 fb 03 75 85 e8 e7 RSP: 0018:ffffc90001e274a8 EFLAGS: 00010007 RAX: 0000000000000000 RBX: 0000000000414000 RCX: ffffffff8100dcd4 RDX: 0000000000414000 RSI: ffffffffff600000 RDI: 0000000000000007 RBP: ffffc90001e274c0 R08: ffff8880637d02c0 R09: fffffbfff16bf69a R10: fffffbfff16bf699 R11: ffffffff8b5fb4c9 R12: 0000000000000000 R13: ffffc90001e27588 R14: ffffc90001e27668 R15: ffffc90001e27568 FS: 0000000001dec940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000006376d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_kernel include/linux/kallsyms.h:43 [inline] is_ksym_addr include/linux/kallsyms.h:49 [inline] kallsyms_lookup+0xc3/0x2d0 kernel/kallsyms.c:291 __sprint_symbol+0xb7/0x1e0 kernel/kallsyms.c:364 sprint_symbol+0x25/0x30 kernel/kallsyms.c:395 symbol_string+0x16f/0x230 lib/vsprintf.c:961 pointer+0x17b/0x740 lib/vsprintf.c:2188 vsnprintf+0x6b6/0x19a0 lib/vsprintf.c:2578 vscnprintf+0x2d/0x80 lib/vsprintf.c:2677 vprintk_store+0x44/0x4a0 kernel/printk/printk.c:1917 vprintk_emit+0x135/0x700 kernel/printk/printk.c:1978 vprintk_default+0x28/0x30 kernel/printk/printk.c:2023 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:386 printk+0xba/0xed kernel/printk/printk.c:2056 show_ip+0x27/0x38 arch/x86/kernel/dumpstack.c:124 show_iret_regs+0x14/0x38 arch/x86/kernel/dumpstack.c:131 __show_regs+0x1c/0x60 arch/x86/kernel/process_64.c:74 show_regs_if_on_stack.constprop.0+0x39/0x3c arch/x86/kernel/dumpstack.c:149 show_trace_log_lvl+0x25d/0x28c arch/x86/kernel/dumpstack.c:274 show_regs arch/x86/kernel/dumpstack.c:423 [inline] show_regs.cold+0x1a/0x1f arch/x86/kernel/dumpstack.c:413 __die+0x6c/0xb6 arch/x86/kernel/dumpstack.c:388 die+0x2b/0x48 arch/x86/kernel/dumpstack.c:408 do_trap_no_signal arch/x86/kernel/traps.c:207 [inline] do_trap+0x101/0x230 arch/x86/kernel/traps.c:246 do_error_trap+0xd6/0x200 arch/x86/kernel/traps.c:273 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:prepare_exit_to_usermode arch/x86/entry/common.c:189 [inline] RIP: 0010:syscall_return_slowpath arch/x86/entry/common.c:278 [inline] RIP: 0010:do_syscall_64+0x432/0x790 arch/x86/entry/common.c:304 Code: 41 5c 41 5d 41 5e 5d c3 e8 4b 84 74 00 48 b8 00 00 00 00 00 fc ff df 65 4c 8b 2c 25 c0 1e 02 00 49 8d bd 94 08 00 00 48 00 07 <07> 00 00 00 07 00 00 00 00 00 00 00 00 00 83 c0 03 38 d0 7c 08 84 RSP: 0018:ffffc90001e27f20 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880637d02c0 RCX: ffffffff8100a63d RDX: 0000000000000000 RSI: ffffffff8100a745 RDI: ffff8880637d0b54 RBP: ffffc90001e27f48 R08: ffff8880637d02c0 R09: ffffed100c6fa059 R10: ffffed100c6fa058 R11: ffff8880637d02c7 R12: ffffc90001e27f58 R13: ffff8880637d02c0 R14: 0000000000000000 R15: 0000000000000000 entry_SYSCALL_64_after_hwframe+0x49/0xbe BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6376e067 P4D 6376e067 PUD 6376f067 PMD 0 Oops: 0000 [#3] PREEMPT SMP KASAN CPU: 0 PID: 9105 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:x86_add_exclusive+0x290/0x310 arch/x86/events/core.c:383 Code: f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 6e 45 8b 3e 31 ff 44 89 fe e8 8e 01 74 00 45 85 ff 75 66 e8 04 00 74 00 83 c3 01 bf <03> 00 00 00 49 83 c6 04 89 de e8 71 01 74 00 83 fb 03 75 85 e8 e7 RSP: 0018:ffffc90001e268d0 EFLAGS: 00010007 RAX: 0000000000000000 RBX: 0000000000414000 RCX: ffffffff8100dcd4 RDX: 0000000000414000 RSI: ffffffffff600000 RDI: 0000000000000007 RBP: ffffc90001e268e8 R08: ffff8880637d02c0 R09: ffffed1015d04b8a R10: ffffed1015d04b89 R11: ffff8880ae825c49 R12: 0000000000000000 R13: ffffc90001e269b0 R14: ffffc90001e26a90 R15: ffffc90001e26990 FS: 0000000001dec940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000006376d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_kernel include/linux/kallsyms.h:43 [inline] is_ksym_addr include/linux/kallsyms.h:49 [inline] kallsyms_lookup+0xc3/0x2d0 kernel/kallsyms.c:291 __sprint_symbol+0xb7/0x1e0 kernel/kallsyms.c:364 sprint_symbol+0x25/0x30 kernel/kallsyms.c:395 symbol_string+0x16f/0x230 lib/vsprintf.c:961 pointer+0x17b/0x740 lib/vsprintf.c:2188 vsnprintf+0x6b6/0x19a0 lib/vsprintf.c:2578 vscnprintf+0x2d/0x80 lib/vsprintf.c:2677 printk_safe_log_store+0x106/0x270 kernel/printk/printk_safe.c:93 vprintk_safe kernel/printk/printk_safe.c:346 [inline] vprintk_func+0x131/0x189 kernel/printk/printk_safe.c:383 printk+0xba/0xed kernel/printk/printk.c:2056 show_ip+0x27/0x38 arch/x86/kernel/dumpstack.c:124 show_iret_regs+0x14/0x38 arch/x86/kernel/dumpstack.c:131 __show_regs+0x1c/0x60 arch/x86/kernel/process_64.c:74 show_regs_if_on_stack.constprop.0+0x39/0x3c arch/x86/kernel/dumpstack.c:149 show_trace_log_lvl+0x25d/0x28c arch/x86/kernel/dumpstack.c:274 show_regs arch/x86/kernel/dumpstack.c:423 [inline] show_regs.cold+0x1a/0x1f arch/x86/kernel/dumpstack.c:413 __die+0x6c/0xb6 arch/x86/kernel/dumpstack.c:388 no_context+0x329/0xa30 arch/x86/mm/fault.c:820 __bad_area_nosemaphore+0xae/0x420 arch/x86/mm/fault.c:912 bad_area_nosemaphore+0x2e/0x40 arch/x86/mm/fault.c:919 do_kern_addr_fault arch/x86/mm/fault.c:1276 [inline] __do_page_fault+0x7bd/0xd80 arch/x86/mm/fault.c:1504 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203 RIP: 0010:x86_add_exclusive+0x290/0x310 arch/x86/events/core.c:383 Code: f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 6e 45 8b 3e 31 ff 44 89 fe e8 8e 01 74 00 45 85 ff 75 66 e8 04 00 74 00 83 c3 01 bf <03> 00 00 00 49 83 c6 04 89 de e8 71 01 74 00 83 fb 03 75 85 e8 e7 RSP: 0018:ffffc90001e274a8 EFLAGS: 00010007 RAX: 0000000000000000 RBX: 0000000000414000 RCX: ffffffff8100dcd4 RDX: 0000000000414000 RSI: ffffffffff600000 RDI: 0000000000000007 RBP: ffffc90001e274c0 R08: ffff8880637d02c0 R09: fffffbfff16bf69a R10: fffffbfff16bf699 R11: ffffffff8b5fb4c9 R12: 0000000000000000 R13: ffffc90001e27588 R14: ffffc90001e27668 R15: ffffc90001e27568 is_kernel include/linux/kallsyms.h:43 [inline] is_ksym_addr include/linux/kallsyms.h:49 [inline] kallsyms_lookup+0xc3/0x2d0 kernel/kallsyms.c:291 __sprint_symbol+0xb7/0x1e0 kernel/kallsyms.c:364 sprint_symbol+0x25/0x30 kernel/kallsyms.c:395 symbol_string+0x16f/0x230 lib/vsprintf.c:961 pointer+0x17b/0x740 lib/vsprintf.c:2188 vsnprintf+0x6b6/0x19a0 lib/vsprintf.c:2578 vscnprintf+0x2d/0x80 lib/vsprintf.c:2677 vprintk_store+0x44/0x4a0 kernel/printk/printk.c:1917 vprintk_emit+0x135/0x700 kernel/printk/printk.c:1978 vprintk_default+0x28/0x30 kernel/printk/printk.c:2023 vprintk_func Lost 62 message(s)!