syzkaller login: [ 42.526697] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:17557' (ECDSA) to the list of known hosts. 2023/05/16 14:00:56 fuzzer started 2023/05/16 14:00:56 dialing manager at localhost:35573 2023/05/16 14:00:56 checking machine... 2023/05/16 14:00:56 checking revisions... [ 44.538649] kmemleak: Automatic memory scanning thread ended 2023/05/16 14:00:56 testing simple program... [ 44.595074] cgroup: Unknown subsys name 'net' [ 44.687749] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 58.004884] audit: type=1400 audit(1684245670.194:6): 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 [ 59.083486] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.085162] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.086979] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.091238] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.094062] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.095305] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 59.500178] ------------[ cut here ]------------ [ 59.500821] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 59.502857] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.503919] Modules linked in: [ 59.504337] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.509283] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.510478] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.511120] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 59.513436] RSP: 0018:ffff888016937c00 EFLAGS: 00010282 [ 59.514081] RAX: 0000000000000000 RBX: ffff88800d7cb840 RCX: 0000000000000000 [ 59.514984] RDX: ffff88800fd351c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.515863] RBP: ffff88800d7cb854 R08: 0000000000000001 R09: 0000000000000000 [ 59.516785] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 59.517669] R13: ffffffff84e223a0 R14: ffff88800d7cb848 R15: ffffffff84d73340 [ 59.518562] FS: 00005555566c5400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.519556] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.520262] CR2: 00007f71aa1856f4 CR3: 0000000017c6c000 CR4: 0000000000350ee0 [ 59.521165] Call Trace: [ 59.521515] [ 59.521810] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.522455] ipv4_frags_init_net+0x269/0x440 [ 59.523008] ops_init+0xbb/0x6b0 [ 59.523473] setup_net+0x3d9/0x990 [ 59.523934] ? down_read_killable+0x1d7/0x4e0 [ 59.524532] ? __pfx_setup_net+0x10/0x10 [ 59.525042] ? copy_net_ns+0x17c/0x770 [ 59.525569] copy_net_ns+0x321/0x770 [ 59.526059] create_new_namespaces+0x3f6/0xb30 [ 59.526673] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.527276] ksys_unshare+0x44d/0x8e0 [ 59.527797] ? __pfx_ksys_unshare+0x10/0x10 [ 59.528402] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.529115] __x64_sys_unshare+0x31/0x40 [ 59.529675] do_syscall_64+0x3f/0x90 [ 59.530153] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.530823] RIP: 0033:0x7f651b2890d7 [ 59.531283] 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 [ 59.533445] RSP: 002b:00007ffccd5283e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.534349] RAX: ffffffffffffffda RBX: 00007ffccd528a28 RCX: 00007f651b2890d7 [ 59.535222] RDX: 00007f651b2f341f RSI: 00007ffccd528380 RDI: 0000000040000000 [ 59.536112] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccd528190 [ 59.536979] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f651b39bbf0 [ 59.537851] R13: 00007ffccd5284c0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.538754] [ 59.539053] irq event stamp: 8605 [ 59.539516] hardirqs last enabled at (8617): [] __up_console_sem+0x78/0x80 [ 59.540599] hardirqs last disabled at (8628): [] __up_console_sem+0x5d/0x80 [ 59.541648] softirqs last enabled at (8180): [] irq_exit_rcu+0x93/0xc0 [ 59.542657] softirqs last disabled at (8123): [] irq_exit_rcu+0x93/0xc0 [ 59.543677] ---[ end trace 0000000000000000 ]--- [ 59.548810] ------------[ cut here ]------------ [ 59.549416] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.551122] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.552174] Modules linked in: [ 59.552611] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.553757] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.554773] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.555450] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 59.557620] RSP: 0018:ffff888016937c00 EFLAGS: 00010282 [ 59.558269] RAX: 0000000000000000 RBX: ffff888016419c40 RCX: 0000000000000000 [ 59.559158] RDX: ffff88800fd351c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.560091] RBP: ffff888016419c54 R08: 0000000000000001 R09: 0000000000000000 [ 59.560976] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.561864] R13: ffffffff84e223a0 R14: ffff888016419c48 R15: ffffffff84da62e0 [ 59.562754] FS: 00005555566c5400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.563742] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.564493] CR2: 00007f71aa1856f4 CR3: 0000000017c6c000 CR4: 0000000000350ee0 [ 59.565387] Call Trace: [ 59.565721] [ 59.566014] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.566651] ipv6_frags_init_net+0x206/0x3c0 [ 59.567208] ops_init+0xbb/0x6b0 [ 59.567677] setup_net+0x3d9/0x990 [ 59.568140] ? down_read_killable+0x1d7/0x4e0 [ 59.568726] ? __pfx_setup_net+0x10/0x10 [ 59.569231] ? copy_net_ns+0x17c/0x770 [ 59.569762] copy_net_ns+0x321/0x770 [ 59.570235] create_new_namespaces+0x3f6/0xb30 [ 59.570860] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.571495] ksys_unshare+0x44d/0x8e0 [ 59.571994] ? __pfx_ksys_unshare+0x10/0x10 [ 59.572565] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.573265] __x64_sys_unshare+0x31/0x40 [ 59.573804] do_syscall_64+0x3f/0x90 [ 59.574278] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.574936] RIP: 0033:0x7f651b2890d7 [ 59.575426] 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 [ 59.577568] RSP: 002b:00007ffccd5283e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.578520] RAX: ffffffffffffffda RBX: 00007ffccd528a28 RCX: 00007f651b2890d7 [ 59.579391] RDX: 00007f651b2f341f RSI: 00007ffccd528380 RDI: 0000000040000000 [ 59.580243] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccd528190 [ 59.581116] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f651b39bbf0 [ 59.581998] R13: 00007ffccd5284c0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.582894] [ 59.583196] irq event stamp: 10185 [ 59.583660] hardirqs last enabled at (10197): [] __up_console_sem+0x78/0x80 [ 59.584721] hardirqs last disabled at (10208): [] __up_console_sem+0x5d/0x80 [ 59.585785] softirqs last enabled at (9582): [] irq_exit_rcu+0x93/0xc0 [ 59.586809] softirqs last disabled at (9533): [] irq_exit_rcu+0x93/0xc0 [ 59.587820] ---[ end trace 0000000000000000 ]--- [ 59.589149] ------------[ cut here ]------------ [ 59.589769] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.591666] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.592733] Modules linked in: [ 59.593135] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 59.594272] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.595262] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.595932] 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 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 59.598085] RSP: 0018:ffff888016937bf0 EFLAGS: 00010286 [ 59.598774] RAX: 0000000000000000 RBX: ffff888016419640 RCX: 0000000000000000 [ 59.599669] RDX: ffff88800fd351c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 59.600553] RBP: ffff888016419654 R08: 0000000000000001 R09: 0000000000000000 [ 59.601426] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.602276] R13: ffffffff84e223a0 R14: ffff888016419648 R15: ffffffff84daf020 [ 59.603162] FS: 00005555566c5400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.604167] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.604912] CR2: 00007f71aa1856f4 CR3: 0000000017c6c000 CR4: 0000000000350ee0 [ 59.605784] Call Trace: [ 59.606107] [ 59.606435] nf_ct_net_init+0x224/0x3d0 [ 59.606944] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.607549] ops_init+0xbb/0x6b0 [ 59.608002] setup_net+0x3d9/0x990 [ 59.608481] ? down_read_killable+0x1d7/0x4e0 [ 59.609035] ? __pfx_setup_net+0x10/0x10 [ 59.609573] ? copy_net_ns+0x17c/0x770 [ 59.610075] copy_net_ns+0x321/0x770 [ 59.610585] create_new_namespaces+0x3f6/0xb30 [ 59.611167] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.611809] ksys_unshare+0x44d/0x8e0 [ 59.612316] ? __pfx_ksys_unshare+0x10/0x10 [ 59.612902] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.613632] __x64_sys_unshare+0x31/0x40 [ 59.614143] do_syscall_64+0x3f/0x90 [ 59.614638] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.615265] RIP: 0033:0x7f651b2890d7 [ 59.615748] 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 [ 59.617869] RSP: 002b:00007ffccd5283e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 59.618830] RAX: ffffffffffffffda RBX: 00007ffccd528a28 RCX: 00007f651b2890d7 [ 59.619716] RDX: 00007f651b2f341f RSI: 00007ffccd528380 RDI: 0000000040000000 [ 59.620613] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccd528190 [ 59.621484] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f651b39bbf0 [ 59.622334] R13: 00007ffccd5284c0 R14: 0000000000000000 R15: 00000000000000f8 [ 59.623251] [ 59.623600] irq event stamp: 10943 [ 59.624043] hardirqs last enabled at (10953): [] __up_console_sem+0x78/0x80 [ 59.625105] hardirqs last disabled at (10964): [] __up_console_sem+0x5d/0x80 [ 59.626171] softirqs last enabled at (10938): [] irq_exit_rcu+0x93/0xc0 [ 59.627197] softirqs last disabled at (10931): [] irq_exit_rcu+0x93/0xc0 [ 59.628247] ---[ end trace 0000000000000000 ]--- [ 61.166834] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 63.214451] Bluetooth: hci0: command 0x041b tx timeout [ 65.262450] Bluetooth: hci0: command 0x040f tx timeout executing program [ 67.310470] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 14:01:02 Registers: info registers vcpu 0 RAX=000000000002542f RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007fbad5158070 CR3=0000000016442000 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=e1da49c1677a0db4d04d666042cc00c5 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=90b97fa0140f787b000000000013b7b0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=c5363a59b02ea4f800000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000072 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880169375f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000072 R11=0000000000000001 R12=0000000000000072 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd 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 00005555566c5400 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=00007f71aa1856f4 CR3=0000000017c6c000 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