general protection fault in copy_user_generic

Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported
KASAN: use-after-free Read in __list_del_entry_valid (2) crypto	19	syz, C			11	3145d	3147d

Title

Rank 🛈

Repro

KASAN: use-after-free Read in __list_del_entry_valid (2) crypto

syz, C

3145d

3147d

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in copy_user_generic_unrolled fs	2				1	3164d	3164d	0/29	closed as invalid on 2017/11/30 15:20
linux-4.14	general protection fault in copy_user_generic_unrolled	2				1	1322d	1322d	0/1	auto-obsoleted due to no activity on 2023/04/15 10:00

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) handle_userfault: 120 callbacks suppressed FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 16647 Comm: syz-executor2 Not tainted 4.15.0-rc4+ #227 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 handle_userfault+0x12fa/0x24c0 fs/userfaultfd.c:427 do_anonymous_page mm/memory.c:3121 [inline] handle_pte_fault mm/memory.c:3935 [inline] __handle_mm_fault+0x32a3/0x3ce0 mm/memory.c:4061 handle_mm_fault+0x334/0x8d0 mm/memory.c:4098 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504 page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1094 RIP: 0010:copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:65 RSP: 0018:ffff8801ca287950 EFLAGS: 00010202 RAX: fffff520003c0207 RBX: 0000000020012ff0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000020012ff0 RDI: ffffc90001e01030 RBP: ffff8801ca287980 R08: fffff520003c0207 R09: fffff520003c0207 R10: 0000000000000001 R11: fffff520003c0206 R12: 0000000000000008 R13: ffffc90001e01030 R14: 00007ffffffff000 R15: 0000000020012ff8 copy_from_user include/linux/uaccess.h:147 [inline] bpf_prog_create_from_user+0x10b/0x2b0 net/core/filter.c:1182 seccomp_prepare_filter kernel/seccomp.c:386 [inline] seccomp_prepare_user_filter kernel/seccomp.c:421 [inline] seccomp_set_mode_filter kernel/seccomp.c:856 [inline] do_seccomp+0x8a7/0x21f0 kernel/seccomp.c:929 SYSC_seccomp kernel/seccomp.c:943 [inline] SyS_seccomp+0x24/0x30 kernel/seccomp.c:940 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a09 RSP: 002b:00007f28b7863c58 EFLAGS: 00000212 ORIG_RAX: 000000000000013d RAX: ffffffffffffffda RBX: 00007f28b7864700 RCX: 0000000000452a09 RDX: 0000000020000ff0 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f7ff R14: 00007f28b78649c0 R15: 0000000000000000 Modules linked in: CPU: 0 PID: 16649 Comm: syz-executor5 Not tainted 4.15.0-rc4+ #227 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff8801bc007058 EFLAGS: 00010093 RAX: ffff8801d8f1a1c0 RBX: 00000000001606f0 RCX: ffffffff811a2a92 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff8801bc007058 R08: 1ffff10037800d67 R09: 0000000000000004 R10: ffff8801bc006fc8 R11: 0000000000000004 R12: 0000000000000093 R13: ffff8801d8f1a1c0 R14: ffff8801db414850 R15: ffff8801db414850 FS: 00007fd960528700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020134000 CR3: 0000000005e22003 CR4: 00000000001626f0 Call Trace: __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:180 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:203 [inline] kvm_cpu_vmxoff arch/x86/kvm/vmx.c:3582 [inline] hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3588 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:7982 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3310 on_each_cpu+0xca/0x1b0 kernel/smp.c:604 hardware_disable_all_nolock+0x3e/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3328 hardware_disable_all arch/x86/kvm/../../../virt/kvm/kvm_main.c:3334 [inline] kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:742 [inline] kvm_put_kvm+0x956/0xdf0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:755 kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:766 __fput+0x327/0x7e0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x9bb/0x1ad0 kernel/exit.c:865 do_group_exit+0x149/0x400 kernel/exit.c:968 get_signal+0x73f/0x16c0 kernel/signal.c:2335 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x94/0x96 RIP: 0033:0x452a09 RSP: 002b:00007fd960527c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 000000000071c010 RCX: 0000000000452a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000071c03c RBP: 00000000000003f4 R08: 0000000000000000 R09: 00000000000003f4 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006f2f80 R13: 00000000ffffffff R14: 00007fd9605286d4 R15: 0000000000000008 Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d RIP: native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: ffff8801bc007058 ---[ end trace 826fc7eb0c12f2d4 ]---