program: add_key$user(&(0x7f0000000180), &(0x7f00000001c0)={'syz', 0x2}, &(0x7f0000000200)='*', 0x1, 0xfffffffffffffffb) setns(0xc9, 0x0) r0 = socket$inet6(0xa, 0x800000000000002, 0x0) r1 = socket(0x400000000010, 0x3, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101}) r3 = socket(0x400000000010, 0x3, 0x0) r4 = socket$unix(0x1, 0x1, 0x0) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', 0x0}) sendmsg$nl_route_sched(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000380)=@newqdisc={0xa4, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffdf, {0x0, 0x0, 0x0, r5, {0x0, 0x9}, {0xffff, 0xffff}, {0xf, 0xf}}, [@TCA_STAB={0x80, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x1, 0xc2, 0x7e, 0x41, 0x0, 0x3, 0x8, 0x8}}, {0x14, 0x2, [0x3, 0x3, 0x3, 0xd6, 0x1ff, 0x7f, 0x0, 0x8]}}, {{0x1c, 0x1, {0x2, 0x7, 0x401, 0x1f23, 0x0, 0x9, 0x1ff, 0x2}}, {0x8, 0x2, [0xdaf5, 0xf801]}}, {{0x1c, 0x1, {0x6, 0x4, 0x1ff, 0x5, 0x2, 0x1, 0x7, 0x3}}, {0xa, 0x2, [0x8, 0x6, 0x3]}}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x8001}, 0x20008850) sendmsg$nl_route_sched(r3, &(0x7f0000000900)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000940)=@newtfilter={0x34, 0x2c, 0xd27, 0x70bd28, 0xfffff000, {0x0, 0x0, 0x0, r5, {0xf000, 0xffff}, {}, {0x7, 0xa}}, [@filter_kind_options=@f_route={{0xa}, {0x4}}]}, 0x34}, 0x1, 0x0, 0x0, 0x100}, 0x20000800) r6 = socket$unix(0x1, 0x1, 0x0) ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', 0x0}) sendmsg$nl_route_sched(r1, &(0x7f0000000900)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000002c0)=@newtfilter={0x34, 0x2c, 0xd27, 0x70bd2a, 0xfffff000, {0x0, 0x0, 0x0, r7, {0xf000, 0xffff}, {}, {0x7, 0xa}}, [@filter_kind_options=@f_route={{0xa}, {0x4}}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008000}, 0x20000800) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000340)=0x152, 0x4) socket$inet(0x2, 0x6, 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000100)='configfs\x00', 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config/nvmet/subsystems/subsys1\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config/nvmet/subsystems/subsys1/namespaces/1\x00', 0x1ff) r8 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1a4) r9 = openat(r8, &(0x7f0000000000)='./config/nvmet/subsystems/subsys1/namespaces/1/device_path\x00', 0x0, 0x1) write(r9, &(0x7f0000000200)='./file0\x00', 0x8) r10 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./config/nvmet/subsystems/subsys1/namespaces/1/buffered_io\x00', 0x1, 0x0) write(r10, &(0x7f0000000200)='1\x00', 0x2) r11 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./config/nvmet/subsystems/subsys1/namespaces/1/enable\x00', 0x1, 0x0) write(r11, &(0x7f0000000200)='1\x00', 0x2) write(r11, &(0x7f0000000200)='0\x00', 0x2) sendmmsg$inet6(r0, &(0x7f0000001d80)=[{{&(0x7f0000000b00)={0xa, 0x4e23, 0x7, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', 0xfffffffc}, 0x1c, 0x0}}], 0x1, 0x24000000) add_key$keyring(&(0x7f0000000000), &(0x7f0000000040)={'syz', 0x0}, 0x0, 0x0, 0xffffffffffffffff) [ 93.929023][ T5277] Bluetooth: hci0: command tx timeout [ 94.216322][ T5324] nvmet: adding nsid 1 to subsystem subsys1 [ 94.346263][ T5324] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 94.351651][ T5324] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 94.355447][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.359219][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.363433][ T5324] RIP: 0010:strlen+0x29/0x70 [ 94.365378][ T5324] Code: 90 f3 0f 1e fa 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 [ 94.373390][ T5324] RSP: 0018:ffffc9000e3bf978 EFLAGS: 00010246 [ 94.375846][ T5324] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000100000 [ 94.379107][ T5324] RDX: ffffc90020802000 RSI: 0000000000000051 RDI: 0000000000000000 [ 94.382681][ T5324] RBP: ffffc9000e3bfab8 R08: ffffffff90576c37 R09: 1ffffffff20aed86 [ 94.386244][ T5324] R10: dffffc0000000000 R11: fffffbfff20aed87 R12: 1ffff92001c77f40 [ 94.389991][ T5324] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff [ 94.393500][ T5324] FS: 00007f38d3ca86c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 [ 94.397256][ T5324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.400096][ T5324] CR2: 00007f25358e2000 CR3: 0000000043b79000 CR4: 0000000000352ef0 [ 94.403544][ T5324] Call Trace: [ 94.405089][ T5324] [ 94.406451][ T5324] do_getname_kernel+0x1d/0x230 [ 94.408697][ T5324] ? getname_kernel+0xd/0x20 [ 94.410800][ T5324] filp_open+0x87/0x1d0 [ 94.413054][ T5324] ? __pfx_filp_open+0x10/0x10 [ 94.415746][ T5324] ? __pfx___mutex_lock+0x10/0x10 [ 94.418522][ T5324] ? nvmet_ns_enable_store+0xc8/0x170 [ 94.421682][ T5324] nvmet_file_ns_enable+0x74/0x350 [ 94.424935][ T5324] nvmet_ns_enable+0xaa/0x780 [ 94.427838][ T5324] ? configfs_write_iter+0x238/0x430 [ 94.430147][ T5324] nvmet_ns_enable_store+0xd7/0x170 [ 94.432382][ T5324] ? __pfx_nvmet_ns_enable_store+0x10/0x10 [ 94.434825][ T5324] ? down_read+0x2be/0x330 [ 94.436672][ T5324] ? __pfx_nvmet_ns_enable_store+0x10/0x10 [ 94.439063][ T5324] configfs_write_iter+0x337/0x430 [ 94.441398][ T5324] vfs_write+0x612/0xba0 [ 94.443402][ T5324] ? __pfx_vfs_write+0x10/0x10 [ 94.445521][ T5324] ? __fget_files+0x2a/0x420 [ 94.447489][ T5324] ksys_write+0x150/0x270 [ 94.449355][ T5324] ? __pfx_ksys_write+0x10/0x10 [ 94.451296][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.453757][ T5324] do_syscall_64+0x174/0x580 [ 94.455939][ T5324] ? trace_irq_disable+0x3b/0x140 [ 94.458399][ T5324] ? clear_bhb_loop+0x70/0xc0 [ 94.460594][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.463270][ T5324] RIP: 0033:0x7f38d2d9e0d9 [ 94.465149][ T5324] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 94.473206][ T5324] RSP: 002b:00007f38d3ca7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 94.476953][ T5324] RAX: ffffffffffffffda RBX: 00007f38d3026180 RCX: 00007f38d2d9e0d9 [ 94.480293][ T5324] RDX: 0000000000000002 RSI: 0000200000000200 RDI: 000000000000000b [ 94.483464][ T5324] RBP: 00007f38d2e35024 R08: 0000000000000000 R09: 0000000000000000 [ 94.486741][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.490081][ T5324] R13: 00007f38d3026218 R14: 00007f38d3026180 R15: 00007fff4a992438 [ 94.493590][ T5324] [ 94.494980][ T5324] Modules linked in: [ 94.497210][ T5324] ---[ end trace 0000000000000000 ]--- [ 94.688807][ T5324] RIP: 0010:strlen+0x29/0x70 [ 94.707953][ T5324] Code: 90 f3 0f 1e fa 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 [ 94.735822][ T5324] RSP: 0018:ffffc9000e3bf978 EFLAGS: 00010246 [ 94.750083][ T5324] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000100000 [ 94.757509][ T5324] RDX: ffffc90020802000 RSI: 0000000000000051 RDI: 0000000000000000 [ 94.776226][ T5324] RBP: ffffc9000e3bfab8 R08: ffffffff90576c37 R09: 1ffffffff20aed86 [ 94.782575][ T5324] R10: dffffc0000000000 R11: fffffbfff20aed87 R12: 1ffff92001c77f40 [ 94.790061][ T5324] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff [ 94.798090][ T5324] FS: 00007f38d3ca86c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 [ 94.837918][ T5324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.840753][ T5324] CR2: 00007fbc95a99e9c CR3: 0000000043b79000 CR4: 0000000000352ef0 [ 94.844467][ T5324] Kernel panic - not syncing: Fatal exception [ 94.847613][ T5324] Kernel Offset: disabled [ 94.849614][ T5324] Rebooting in 86400 seconds..