syzkaller login: [ 38.479604] sshd (226) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:60677' (ECDSA) to the list of known hosts. 2023/05/17 21:30:22 fuzzer started 2023/05/17 21:30:22 dialing manager at localhost:44319 2023/05/17 21:30:22 checking machine... 2023/05/17 21:30:22 checking revisions... [ 39.601972] kmemleak: Automatic memory scanning thread ended 2023/05/17 21:30:22 testing simple program... [ 39.651396] cgroup: Unknown subsys name 'net' [ 39.729325] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 52.909846] audit: type=1400 audit(1684359035.831:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 54.035951] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.037727] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.039278] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.043650] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.045444] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.047101] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.455068] ------------[ cut here ]------------ [ 54.455732] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 54.457436] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.458547] Modules linked in: [ 54.459019] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.463905] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.465015] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.465657] 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 [ 54.468030] RSP: 0018:ffff88800dc9fc00 EFLAGS: 00010282 [ 54.468688] RAX: 0000000000000000 RBX: ffff88800f575840 RCX: 0000000000000000 [ 54.469717] RDX: ffff88800f6cb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.470702] RBP: ffff88800f575854 R08: 0000000000000001 R09: 0000000000000000 [ 54.471892] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.472978] R13: ffffffff84e23fe0 R14: ffff88800f575848 R15: ffffffff84d74dc0 [ 54.474005] FS: 000055555610d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.475029] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.475744] CR2: 00007f3fc46e76f4 CR3: 000000001669e000 CR4: 0000000000350ee0 [ 54.476647] Call Trace: [ 54.477009] [ 54.477315] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 54.477968] ipv4_frags_init_net+0x269/0x440 [ 54.478524] ops_init+0xbb/0x6b0 [ 54.479031] setup_net+0x3d9/0x990 [ 54.479499] ? down_read_killable+0x1d7/0x4e0 [ 54.480104] ? __pfx_setup_net+0x10/0x10 [ 54.480616] ? copy_net_ns+0x17c/0x770 [ 54.481166] copy_net_ns+0x321/0x770 [ 54.481652] create_new_namespaces+0x3f6/0xb30 [ 54.482265] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.482916] ksys_unshare+0x44d/0x8e0 [ 54.483417] ? __pfx_ksys_unshare+0x10/0x10 [ 54.483999] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.484707] __x64_sys_unshare+0x31/0x40 [ 54.485259] do_syscall_64+0x3f/0x90 [ 54.485735] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.486410] RIP: 0033:0x7fcc97d240d7 [ 54.486900] 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 [ 54.489063] RSP: 002b:00007fffd7f83cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.490005] RAX: ffffffffffffffda RBX: 00007fffd7f84308 RCX: 00007fcc97d240d7 [ 54.490898] RDX: 00007fcc97d8e41f RSI: 00007fffd7f83c60 RDI: 0000000040000000 executing program [ 54.491838] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd7f83a70 [ 54.492904] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fcc97e36bf0 [ 54.493822] R13: 00007fffd7f83da0 R14: 0000000000000000 R15: 00000000000000f8 [ 54.494734] [ 54.495095] irq event stamp: 9545 [ 54.495528] hardirqs last enabled at (9555): [] __up_console_sem+0x78/0x80 [ 54.496599] hardirqs last disabled at (9566): [] __up_console_sem+0x5d/0x80 [ 54.497684] softirqs last enabled at (9206): [] irq_exit_rcu+0x93/0xc0 [ 54.498766] softirqs last disabled at (9195): [] irq_exit_rcu+0x93/0xc0 [ 54.499824] ---[ end trace 0000000000000000 ]--- [ 54.505144] ------------[ cut here ]------------ [ 54.505816] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 54.507495] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.508591] Modules linked in: [ 54.509038] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.510224] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.511284] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.511986] 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 [ 54.514254] RSP: 0018:ffff88800dc9fc00 EFLAGS: 00010282 [ 54.514957] RAX: 0000000000000000 RBX: ffff88800c7d7a40 RCX: 0000000000000000 [ 54.515895] RDX: ffff88800f6cb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.516815] RBP: ffff88800c7d7a54 R08: 0000000000000001 R09: 0000000000000000 [ 54.517703] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.518615] R13: ffffffff84e23fe0 R14: ffff88800c7d7a48 R15: ffffffff84da7d60 [ 54.519523] FS: 000055555610d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.520540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.521297] CR2: 00007f3fc46e76f4 CR3: 000000001669e000 CR4: 0000000000350ee0 [ 54.522215] Call Trace: [ 54.522545] [ 54.522886] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 54.523509] ipv6_frags_init_net+0x206/0x3c0 [ 54.524136] ops_init+0xbb/0x6b0 [ 54.524589] setup_net+0x3d9/0x990 [ 54.525092] ? down_read_killable+0x1d7/0x4e0 [ 54.525682] ? __pfx_setup_net+0x10/0x10 [ 54.526233] ? copy_net_ns+0x17c/0x770 [ 54.526791] copy_net_ns+0x321/0x770 [ 54.527302] create_new_namespaces+0x3f6/0xb30 [ 54.527933] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.528550] ksys_unshare+0x44d/0x8e0 [ 54.529078] ? __pfx_ksys_unshare+0x10/0x10 [ 54.529631] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.530403] __x64_sys_unshare+0x31/0x40 [ 54.530971] do_syscall_64+0x3f/0x90 [ 54.531460] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.532164] RIP: 0033:0x7fcc97d240d7 [ 54.532647] 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 [ 54.534814] RSP: 002b:00007fffd7f83cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.535840] RAX: ffffffffffffffda RBX: 00007fffd7f84308 RCX: 00007fcc97d240d7 [ 54.536723] RDX: 00007fcc97d8e41f RSI: 00007fffd7f83c60 RDI: 0000000040000000 [ 54.537632] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd7f83a70 [ 54.538546] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fcc97e36bf0 [ 54.539457] R13: 00007fffd7f83da0 R14: 0000000000000000 R15: 00000000000000f8 [ 54.540382] [ 54.540694] irq event stamp: 11339 [ 54.541172] hardirqs last enabled at (11351): [] __up_console_sem+0x78/0x80 [ 54.542260] hardirqs last disabled at (11362): [] __up_console_sem+0x5d/0x80 [ 54.543369] softirqs last enabled at (11266): [] irq_exit_rcu+0x93/0xc0 [ 54.544421] softirqs last disabled at (11259): [] irq_exit_rcu+0x93/0xc0 [ 54.545469] ---[ end trace 0000000000000000 ]--- [ 54.546944] ------------[ cut here ]------------ [ 54.547546] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 54.549499] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.550591] Modules linked in: [ 54.551064] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 54.552232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.553258] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.553948] 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 [ 54.556156] RSP: 0018:ffff88800dc9fbf0 EFLAGS: 00010286 [ 54.556851] RAX: 0000000000000000 RBX: ffff88800c84fc40 RCX: 0000000000000000 [ 54.557717] RDX: ffff88800f6cb680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 54.558626] RBP: ffff88800c84fc54 R08: 0000000000000001 R09: 0000000000000000 [ 54.559558] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.560473] R13: ffffffff84e23fe0 R14: ffff88800c84fc48 R15: ffffffff84db0aa0 [ 54.561392] FS: 000055555610d400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 54.562407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.563164] CR2: 00007f3fc46e76f4 CR3: 000000001669e000 CR4: 0000000000350ee0 [ 54.564063] Call Trace: [ 54.564390] [ 54.564691] nf_ct_net_init+0x224/0x3d0 [ 54.565257] ? __pfx_nf_ct_net_init+0x10/0x10 [ 54.565880] ops_init+0xbb/0x6b0 [ 54.566331] setup_net+0x3d9/0x990 [ 54.566843] ? down_read_killable+0x1d7/0x4e0 [ 54.567438] ? __pfx_setup_net+0x10/0x10 [ 54.567993] ? copy_net_ns+0x17c/0x770 [ 54.568506] copy_net_ns+0x321/0x770 [ 54.569036] create_new_namespaces+0x3f6/0xb30 [ 54.569635] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.570295] ksys_unshare+0x44d/0x8e0 [ 54.570826] ? __pfx_ksys_unshare+0x10/0x10 [ 54.571391] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.572140] __x64_sys_unshare+0x31/0x40 [ 54.572655] do_syscall_64+0x3f/0x90 [ 54.573174] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.573862] RIP: 0033:0x7fcc97d240d7 [ 54.574332] 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 [ 54.576551] RSP: 002b:00007fffd7f83cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 54.577525] RAX: ffffffffffffffda RBX: 00007fffd7f84308 RCX: 00007fcc97d240d7 [ 54.578429] RDX: 00007fcc97d8e41f RSI: 00007fffd7f83c60 RDI: 0000000040000000 [ 54.579340] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffd7f83a70 [ 54.580252] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fcc97e36bf0 [ 54.581148] R13: 00007fffd7f83da0 R14: 0000000000000000 R15: 00000000000000f8 [ 54.582081] [ 54.582385] irq event stamp: 12107 [ 54.582859] hardirqs last enabled at (12119): [] __up_console_sem+0x78/0x80 [ 54.583965] hardirqs last disabled at (12130): [] __up_console_sem+0x5d/0x80 [ 54.585053] softirqs last enabled at (11858): [] irq_exit_rcu+0x93/0xc0 [ 54.586104] softirqs last disabled at (11853): [] irq_exit_rcu+0x93/0xc0 [ 54.587180] ---[ end trace 0000000000000000 ]--- [ 56.116606] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 58.164039] Bluetooth: hci0: command 0x041b tx timeout [ 60.211821] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.259813] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 21:30:34 Registers: info registers vcpu 0 RAX=00000000000251a7 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=00007fa2a3a33830 CR3=0000000015ab2000 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=3a803257c75b1fbaf646108a0494f114 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=9840a92f3632ef84000000000013b590 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=dce0f7635fe7188d00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000057 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800dc9f5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000057 R11=0000000000000001 R12=0000000000000057 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 000055555610d400 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=00007f3fc46e76f4 CR3=000000001669e000 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