RDX: 0000000020000140 RSI: 0000000020000100 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 00000000fffffffc R09: 0000000000000039 R10: 0000000000000311 R11: 0000000000000246 R12: 00007f00bc56bd80 R13: 00000000006dbc38 R14: 0000000000000006 R15: 0079656b5f676962 CPU: 1 PID: 4528 Comm: syz-executor237 Not tainted 4.17.0+ #17 BUG: unable to handle kernel Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 NULL pointer dereference at 0000000000000008 Call Trace: PGD 800000019f3d5067 P4D 800000019f3d5067 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 PUD 19ce9d067 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: 4533 Comm: syz-executor237 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 RSP: 0018:ffff8801c07df8b8 EFLAGS: 00010046 kmalloc_node include/linux/slab.h:554 [inline] alloc_vmap_area+0x1e6/0x15a0 mm/vmalloc.c:420 RAX: ffffffff81b1e4bc RBX: 0000000000000000 RCX: ffff8801a8e58000 RDX: 0000000000000000 RSI: 8000000000000063 RDI: 0000000000000000 __get_vm_area_node+0x3a6/0x810 mm/vmalloc.c:1410 RBP: ffff8801c07df930 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc900019fffff R11: 0000000000000000 R12: ffffffff8b58d000 get_vm_area_caller+0xdb/0xf0 mm/vmalloc.c:1456 R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000000 FS: 00007f00bc56c700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000019e7d2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kmsan_vmap+0x79/0x1e0 mm/kmsan/kmsan.c:875 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 RIP: 0033:0x445dc9 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RSP: 002b:00007f00bc58cd78 EFLAGS: 00000246 RIP: 0033:0x445dc9 RSP: 002b:00007f00bc56bd78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445dc9 RAX: ffffffffffffffda RBX: 00000000006dbc3c RCX: 0000000000445dc9 RDX: 0000000020000140 RSI: 0000000020000100 RDI: 00000000200000c0 RDX: 0000000020000140 RSI: 0000000020000100 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 00000000fffffffc R09: 0000000000000039 RBP: 0000000000000000 R08: 00000000fffffffc R09: 0000000000000039 R10: 0000000000000311 R11: 0000000000000246 R12: 00007f00bc56bd80 R13: 00000000006dbc38 R14: 0000000000000006 R15: 0079656b5f676962 R10: 0000000000000311 R11: 0000000000000246 R12: 00007f00bc58cd80 Code: R13: 00000000006dbc20 R14: 0000000000000005 R15: 0079656b5f676962 24 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 08 48 89 45 a0 41 8b 84 24 90 0c 00 00 89 45 cc 45 8b bc 24 88 0c 00 00 e8 54 fa b3 ff 4d 8d 75 08 48 85 db 0f 85 5b 01 00 00 <49> 8b 45 08 48 89 45 CPU: 1 PID: 4530 Comm: syz-executor237 Not tainted 4.17.0+ #17 a8 4c Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 89 Call Trace: f7 e8 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 57 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 bd __should_failslab+0x278/0x2a0 mm/failslab.c:32 0e 00 should_failslab+0x29/0x70 mm/slab_common.c:1522 4d 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 8d 75 18 48 RIP: map_vm_area+0x69/0x1f0 mm/vmalloc.c:1353 RSP: ffff8801c07df8b8 kmalloc_node include/linux/slab.h:554 [inline] alloc_vmap_area+0x1e6/0x15a0 mm/vmalloc.c:420 CR2: 0000000000000008 ---[ end trace 6c00f5bb0b95940c ]--- __get_vm_area_node+0x3a6/0x810 mm/vmalloc.c:1410