RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 0000000020000440 RBP: 0000000000000000 R08: 00000000fffffffb R09: 0000000000000039 R10: 0000000000000311 R11: 0000000000000246 R12: 00000000006dbc80 R13: 00007f8cbfb88d80 R14: 000000000000000c R15: 0079656b5f676962 CPU: 1 PID: 4577 Comm: syz-executor740 Not tainted 4.17.0+ #17 BUG: unable to handle kernel NULL pointer dereference Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: at 0000000000000008 PGD 800000018e96e067 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 P4D 800000018e96e067 PUD 19cc19067 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 PMD 0 __should_failslab+0x278/0x2a0 mm/failslab.c:32 Oops: 0000 [#1] SMP PTI should_failslab+0x29/0x70 mm/slab_common.c:1522 Dumping ftrace buffer: slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slub.c:2679 [inline] __kmalloc_node+0x22f/0x1200 mm/slub.c:3859 (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4584 Comm: syz-executor740 Not tainted 4.17.0+ #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:map_vm_area+0x69/0x1f0 mm/vmalloc.c:1353 kmalloc_node include/linux/slab.h:554 [inline] alloc_vmap_area+0x1e6/0x15a0 mm/vmalloc.c:420 RSP: 0018:ffff8801925ff8b8 EFLAGS: 00010046 __get_vm_area_node+0x3a6/0x810 mm/vmalloc.c:1410 RAX: ffffffff81b1e4bc RBX: 0000000000000000 RCX: ffff88019449ba80 RDX: 0000000000000000 RSI: 8000000000000063 RDI: 0000000000000000 get_vm_area_caller+0xdb/0xf0 mm/vmalloc.c:1456 RBP: ffff8801925ff930 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc900019fffff R11: 0000000000000000 R12: ffffffff8b58d000 R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000000 FS: 00007f8cbfb89700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000019cc1a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kmsan_vmap+0x79/0x1e0 mm/kmsan/kmsan.c:875 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vmap+0x3b2/0x4b0 mm/vmalloc.c:1661 kmsan_vmap+0x137/0x1e0 mm/kmsan/kmsan.c:888 vmap+0x3b2/0x4b0 mm/vmalloc.c:1661 big_key_alloc_buffer+0x638/0xa30 security/keys/big_key.c:188 big_key_preparse+0x20a/0xed0 security/keys/big_key.c:228 big_key_alloc_buffer+0x638/0xa30 security/keys/big_key.c:188 big_key_preparse+0x20a/0xed0 security/keys/big_key.c:228 key_create_or_update+0x7a6/0x1a80 security/keys/key.c:849 __do_sys_add_key security/keys/keyctl.c:122 [inline] __se_sys_add_key+0x741/0x980 security/keys/keyctl.c:62 key_create_or_update+0x7a6/0x1a80 security/keys/key.c:849 __do_sys_add_key security/keys/keyctl.c:122 [inline] __se_sys_add_key+0x741/0x980 security/keys/keyctl.c:62 __x64_sys_add_key+0x15d/0x1b0 security/keys/keyctl.c:62 __x64_sys_add_key+0x15d/0x1b0 security/keys/keyctl.c:62 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x63/0xe7 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x445cf9 RIP: 0033:0x445cf9 RSP: 002b:00007f8cbfb88d78 EFLAGS: 00000246 RSP: 002b:00007f8cbfba9d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00000000006dbc84 RCX: 0000000000445cf9 ORIG_RAX: 00000000000000f8 RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 0000000020000440 RBP: 0000000000000000 R08: 00000000fffffffb R09: 0000000000000039 RAX: ffffffffffffffda RBX: 00000000006dbc6c RCX: 0000000000445cf9 R10: 0000000000000311 R11: 0000000000000246 R12: 00000000006dbc80 R13: 00007f8cbfb88d80 R14: 000000000000000c R15: 0079656b5f676962 RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 0000000020000440 Code: RBP: 0000000000000000 R08: 00000000fffffffb R09: 0000000000000039 24 08 R10: 0000000000000311 R11: 0000000000000246 R12: 00000000006dbc68 48 89 R13: 00007f8cbfba9d80 R14: 000000000000000a R15: 0079656b5f676962 45 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 a0 41 8b 84 24 90 0c 00 00 89 45 cc 45 8b bc CPU: 1 PID: 4570 Comm: syz-executor740 Not tainted 4.17.0+ #17 24 88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0c 00 Call Trace: 00 e8 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 54 fa fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 b3 ff __should_failslab+0x278/0x2a0 mm/failslab.c:32 4d 8d should_failslab+0x29/0x70 mm/slab_common.c:1522 75 08 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slub.c:2679 [inline] __kmalloc_node+0x22f/0x1200 mm/slub.c:3859 48 85 db 0f 85 5b 01 kmalloc_node include/linux/slab.h:554 [inline] alloc_vmap_area+0x1e6/0x15a0 mm/vmalloc.c:420 00 __get_vm_area_node+0x3a6/0x810 mm/vmalloc.c:1410 00 <49> get_vm_area_caller+0xdb/0xf0 mm/vmalloc.c:1456 8b 45 08 48 89 45 a8 4c kmsan_vmap+0x79/0x1e0 mm/kmsan/kmsan.c:875 89 f7 vmap+0x3b2/0x4b0 mm/vmalloc.c:1661 e8 57 bd 0e big_key_alloc_buffer+0x638/0xa30 security/keys/big_key.c:188 00 4d big_key_preparse+0x20a/0xed0 security/keys/big_key.c:228 8d 75 18 48 key_create_or_update+0x7a6/0x1a80 security/keys/key.c:849 RIP: map_vm_area+0x69/0x1f0 mm/vmalloc.c:1353 RSP: ffff8801925ff8b8 __do_sys_add_key security/keys/keyctl.c:122 [inline] __se_sys_add_key+0x741/0x980 security/keys/keyctl.c:62 CR2: 0000000000000008 ---[ end trace f879655fe83b1a92 ]---