syzkaller login: [ 36.135967] systemd-udevd (103) used greatest stack depth: 24096 bytes left Warning: Permanently added '[localhost]:4251' (ECDSA) to the list of known hosts. 2023/05/18 09:14:25 fuzzer started 2023/05/18 09:14:26 dialing manager at localhost:44319 2023/05/18 09:14:26 checking machine... 2023/05/18 09:14:26 checking revisions... [ 37.265743] kmemleak: Automatic memory scanning thread ended 2023/05/18 09:14:26 testing simple program... [ 37.338218] cgroup: Unknown subsys name 'net' [ 37.435114] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.423819] audit: type=1400 audit(1684401278.566:6): avc: denied { execmem } for pid=258 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.555708] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.558023] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.559435] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.562513] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.564070] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.565431] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.970879] ------------[ cut here ]------------ [ 50.972205] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.974417] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.975821] Modules linked in: [ 50.976437] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.981846] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.982622] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.983114] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 50.984803] RSP: 0018:ffff88800fe37c00 EFLAGS: 00010282 [ 50.985334] RAX: 0000000000000000 RBX: ffff88800e697040 RCX: 0000000000000000 [ 50.985991] RDX: ffff88801a291b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.986675] RBP: ffff88800e697054 R08: 0000000000000001 R09: 0000000000000000 [ 50.987361] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.988018] R13: ffffffff84e23fe0 R14: ffff88800e697048 R15: ffffffff84d74dc0 [ 50.988723] FS: 00005555555ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.989495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.990044] CR2: 00007f2e4ac826f4 CR3: 000000000e85a000 CR4: 0000000000350ee0 [ 50.990747] Call Trace: [ 50.990994] [ 50.991246] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.991717] ipv4_frags_init_net+0x269/0x440 [ 50.992172] ops_init+0xbb/0x6b0 [ 50.992519] setup_net+0x3d9/0x990 [ 50.992865] ? down_read_killable+0x1d7/0x4e0 [ 50.993321] ? __pfx_setup_net+0x10/0x10 [ 50.993710] ? copy_net_ns+0x17c/0x770 [ 50.994098] copy_net_ns+0x321/0x770 [ 50.994509] create_new_namespaces+0x3f6/0xb30 [ 50.994957] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.995459] ksys_unshare+0x44d/0x8e0 [ 50.995840] ? __pfx_ksys_unshare+0x10/0x10 [ 50.996303] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.996852] __x64_sys_unshare+0x31/0x40 [ 50.997268] do_syscall_64+0x3f/0x90 [ 50.997633] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.998119] RIP: 0033:0x7fa2411130d7 [ 50.998505] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.000177] RSP: 002b:00007ffcb1895128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.000892] RAX: ffffffffffffffda RBX: 00007ffcb1895768 RCX: 00007fa2411130d7 [ 51.001581] RDX: 00007fa24117d41f RSI: 00007ffcb18950c0 RDI: 0000000040000000 [ 51.002260] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb1894ed0 [ 51.002913] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa241225bf0 [ 51.003592] R13: 00007ffcb1895200 R14: 0000000000000000 R15: 00000000000000f8 [ 51.004305] [ 51.004537] irq event stamp: 8155 [ 51.004860] hardirqs last enabled at (8165): [] __up_console_sem+0x78/0x80 [ 51.005675] hardirqs last disabled at (8176): [] __up_console_sem+0x5d/0x80 [ 51.006479] softirqs last enabled at (7648): [] irq_exit_rcu+0x93/0xc0 [ 51.007269] softirqs last disabled at (7477): [] irq_exit_rcu+0x93/0xc0 [ 51.008035] ---[ end trace 0000000000000000 ]--- [ 51.012249] ------------[ cut here ]------------ [ 51.012699] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.014009] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.014818] Modules linked in: [ 51.015129] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.016010] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.016809] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.017327] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 51.018993] RSP: 0018:ffff88800fe37c00 EFLAGS: 00010282 [ 51.019518] RAX: 0000000000000000 RBX: ffff88800d96b640 RCX: 0000000000000000 [ 51.020226] RDX: ffff88801a291b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.020879] RBP: ffff88800d96b654 R08: 0000000000000001 R09: 0000000000000000 [ 51.021562] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.022244] R13: ffffffff84e23fe0 R14: ffff88800d96b648 R15: ffffffff84da7d60 [ 51.022905] FS: 00005555555ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.023681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.024271] CR2: 00007f2e4ac826f4 CR3: 000000000e85a000 CR4: 0000000000350ee0 [ 51.024928] Call Trace: [ 51.025205] [ 51.025437] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.025911] ipv6_frags_init_net+0x206/0x3c0 [ 51.026370] ops_init+0xbb/0x6b0 [ 51.026719] setup_net+0x3d9/0x990 [ 51.027071] ? down_read_killable+0x1d7/0x4e0 [ 51.027536] ? __pfx_setup_net+0x10/0x10 [ 51.027929] ? copy_net_ns+0x17c/0x770 [ 51.028361] copy_net_ns+0x321/0x770 [ 51.028732] create_new_namespaces+0x3f6/0xb30 [ 51.029202] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.029671] ksys_unshare+0x44d/0x8e0 [ 51.030050] ? __pfx_ksys_unshare+0x10/0x10 [ 51.030494] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.031035] __x64_sys_unshare+0x31/0x40 [ 51.031455] do_syscall_64+0x3f/0x90 [ 51.031821] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.032341] RIP: 0033:0x7fa2411130d7 [ 51.032697] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.034364] RSP: 002b:00007ffcb1895128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.035071] RAX: ffffffffffffffda RBX: 00007ffcb1895768 RCX: 00007fa2411130d7 [ 51.035759] RDX: 00007fa24117d41f RSI: 00007ffcb18950c0 RDI: 0000000040000000 [ 51.036464] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb1894ed0 [ 51.037117] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa241225bf0 [ 51.037792] R13: 00007ffcb1895200 R14: 0000000000000000 R15: 00000000000000f8 [ 51.038532] [ 51.038770] irq event stamp: 9883 [ 51.039099] hardirqs last enabled at (9893): [] __up_console_sem+0x78/0x80 [ 51.039903] hardirqs last disabled at (9904): [] __up_console_sem+0x5d/0x80 [ 51.040727] softirqs last enabled at (9868): [] irq_exit_rcu+0x93/0xc0 [ 51.041519] softirqs last disabled at (9855): [] irq_exit_rcu+0x93/0xc0 [ 51.042311] ---[ end trace 0000000000000000 ]--- [ 51.043443] ------------[ cut here ]------------ [ 51.043897] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.045472] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.046289] Modules linked in: [ 51.046596] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.047485] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.048269] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.048771] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 51.050443] RSP: 0018:ffff88800fe37bf0 EFLAGS: 00010286 [ 51.050947] RAX: 0000000000000000 RBX: ffff88800d96be40 RCX: 0000000000000000 [ 51.051632] RDX: ffff88801a291b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.052319] RBP: ffff88800d96be54 R08: 0000000000000001 R09: 0000000000000000 [ 51.052975] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.053663] R13: ffffffff84e23fe0 R14: ffff88800d96be48 R15: ffffffff84db0aa0 [ 51.054353] FS: 00005555555ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.055092] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.055670] CR2: 00007f2e4ac826f4 CR3: 000000000e85a000 CR4: 0000000000350ee0 [ 51.056366] Call Trace: [ 51.056616] [ 51.056843] nf_ct_net_init+0x224/0x3d0 [ 51.057262] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.057707] ops_init+0xbb/0x6b0 [ 51.058045] setup_net+0x3d9/0x990 [ 51.058419] ? down_read_killable+0x1d7/0x4e0 [ 51.058859] ? __pfx_setup_net+0x10/0x10 [ 51.059272] ? copy_net_ns+0x17c/0x770 [ 51.059666] copy_net_ns+0x321/0x770 [ 51.060032] create_new_namespaces+0x3f6/0xb30 [ 51.060514] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.060984] ksys_unshare+0x44d/0x8e0 [ 51.061381] ? __pfx_ksys_unshare+0x10/0x10 [ 51.061797] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.062360] __x64_sys_unshare+0x31/0x40 [ 51.062756] do_syscall_64+0x3f/0x90 [ 51.063123] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.063639] RIP: 0033:0x7fa2411130d7 [ 51.063994] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.065683] RSP: 002b:00007ffcb1895128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.066412] RAX: ffffffffffffffda RBX: 00007ffcb1895768 RCX: 00007fa2411130d7 [ 51.067079] RDX: 00007fa24117d41f RSI: 00007ffcb18950c0 RDI: 0000000040000000 [ 51.067763] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffcb1894ed0 [ 51.068449] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa241225bf0 [ 51.069104] R13: 00007ffcb1895200 R14: 0000000000000000 R15: 00000000000000f8 [ 51.069807] [ 51.070035] irq event stamp: 10667 [ 51.070386] hardirqs last enabled at (10679): [] __up_console_sem+0x78/0x80 [ 51.071205] hardirqs last disabled at (10690): [] __up_console_sem+0x5d/0x80 [ 51.071995] softirqs last enabled at (10328): [] irq_exit_rcu+0x93/0xc0 [ 51.072813] softirqs last disabled at (10319): [] irq_exit_rcu+0x93/0xc0 [ 51.073612] ---[ end trace 0000000000000000 ]--- executing program [ 52.575037] Bluetooth: hci0: command 0x0409 tx timeout [ 54.625208] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.670474] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.718224] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 09:14:37 Registers: info registers vcpu 0 RAX=0000000000028c67 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fea464b41a0 CR3=000000000e818000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=0115a3adab589dbbee494db59e8c01f2 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=2d8672e4232c955b000000000013bb00 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=55c3e2257d29446e00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000006d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800fe375f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000006d R11=0000000000000001 R12=000000000000006d R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00005555555ad400 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f2e4ac826f4 CR3=000000000e85a000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000