syzkaller login: [ 41.194652] sshd (217) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:40003' (ECDSA) to the list of known hosts. 2023/05/16 15:52:21 fuzzer started 2023/05/16 15:52:22 dialing manager at localhost:35573 2023/05/16 15:52:22 checking machine... 2023/05/16 15:52:22 checking revisions... [ 43.234673] kmemleak: Automatic memory scanning thread ended 2023/05/16 15:52:22 testing simple program... [ 43.299563] cgroup: Unknown subsys name 'net' [ 43.358448] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 56.899236] audit: type=1400 audit(1684252355.868:6): 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 [ 58.004676] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.006702] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.008740] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.012190] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.014570] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.016674] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 58.340086] ------------[ cut here ]------------ [ 58.340598] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.342136] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.343061] Modules linked in: [ 58.343386] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.346619] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.348668] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.349294] 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 [ 58.351154] RSP: 0018:ffff88801a717c00 EFLAGS: 00010282 [ 58.351677] RAX: 0000000000000000 RBX: ffff88800db9f440 RCX: 0000000000000000 [ 58.352448] RDX: ffff88800a091b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.353174] RBP: ffff88800db9f454 R08: 0000000000000001 R09: 0000000000000000 [ 58.353859] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 58.354596] R13: ffffffff84e223a0 R14: ffff88800db9f448 R15: ffffffff84d73340 [ 58.355311] FS: 0000555556e45400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.356119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.356690] CR2: 00007fa820f986f4 CR3: 000000001a544000 CR4: 0000000000350ef0 [ 58.357406] Call Trace: [ 58.357670] [ 58.357928] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 58.358458] ipv4_frags_init_net+0x269/0x440 [ 58.358901] ops_init+0xbb/0x6b0 [ 58.359289] setup_net+0x3d9/0x990 [ 58.359657] ? down_read_killable+0x1d7/0x4e0 [ 58.360144] ? __pfx_setup_net+0x10/0x10 [ 58.360551] ? copy_net_ns+0x17c/0x770 [ 58.360997] copy_net_ns+0x321/0x770 [ 58.361384] create_new_namespaces+0x3f6/0xb30 [ 58.361859] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.362396] ksys_unshare+0x44d/0x8e0 [ 58.362796] ? __pfx_ksys_unshare+0x10/0x10 [ 58.363263] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.363844] __x64_sys_unshare+0x31/0x40 [ 58.364292] do_syscall_64+0x3f/0x90 [ 58.364681] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.365227] RIP: 0033:0x7f30f94300d7 [ 58.365602] 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 [ 58.367337] RSP: 002b:00007ffd5b958658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.368107] RAX: ffffffffffffffda RBX: 00007ffd5b958c98 RCX: 00007f30f94300d7 [ 58.368793] RDX: 00007f30f949a41f RSI: 00007ffd5b9585f0 RDI: 0000000040000000 [ 58.369523] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd5b958400 [ 58.370267] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f30f9542bf0 [ 58.370983] R13: 00007ffd5b958730 R14: 0000000000000000 R15: 00000000000000f8 [ 58.371685] [ 58.371926] irq event stamp: 8505 [ 58.372299] hardirqs last enabled at (8517): [] __up_console_sem+0x78/0x80 [ 58.373151] hardirqs last disabled at (8528): [] __up_console_sem+0x5d/0x80 [ 58.374011] softirqs last enabled at (8118): [] irq_exit_rcu+0x93/0xc0 [ 58.374812] softirqs last disabled at (8085): [] irq_exit_rcu+0x93/0xc0 [ 58.375650] ---[ end trace 0000000000000000 ]--- [ 58.379791] ------------[ cut here ]------------ [ 58.380277] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 58.381551] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.382390] Modules linked in: [ 58.382713] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.383614] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.384411] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.384913] 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 [ 58.386633] RSP: 0018:ffff88801a717c00 EFLAGS: 00010282 [ 58.387172] RAX: 0000000000000000 RBX: ffff88800f159e40 RCX: 0000000000000000 [ 58.387845] RDX: ffff88800a091b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.388542] RBP: ffff88800f159e54 R08: 0000000000000001 R09: 0000000000000000 [ 58.389242] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.389929] R13: ffffffff84e223a0 R14: ffff88800f159e48 R15: ffffffff84da62e0 [ 58.390630] FS: 0000555556e45400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.391407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.391998] CR2: 00007fa820f986f4 CR3: 000000001a544000 CR4: 0000000000350ef0 [ 58.392674] Call Trace: [ 58.392925] [ 58.393186] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 58.393662] ipv6_frags_init_net+0x206/0x3c0 [ 58.394129] ops_init+0xbb/0x6b0 [ 58.394478] setup_net+0x3d9/0x990 [ 58.394831] ? down_read_killable+0x1d7/0x4e0 [ 58.395299] ? __pfx_setup_net+0x10/0x10 [ 58.395695] ? copy_net_ns+0x17c/0x770 [ 58.396125] copy_net_ns+0x321/0x770 [ 58.396503] create_new_namespaces+0x3f6/0xb30 [ 58.396988] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.397472] ksys_unshare+0x44d/0x8e0 [ 58.397855] ? __pfx_ksys_unshare+0x10/0x10 [ 58.398319] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.398872] __x64_sys_unshare+0x31/0x40 [ 58.399303] do_syscall_64+0x3f/0x90 [ 58.399675] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.400210] RIP: 0033:0x7f30f94300d7 [ 58.400579] 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 [ 58.402284] RSP: 002b:00007ffd5b958658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.403035] RAX: ffffffffffffffda RBX: 00007ffd5b958c98 RCX: 00007f30f94300d7 [ 58.403709] RDX: 00007f30f949a41f RSI: 00007ffd5b9585f0 RDI: 0000000040000000 [ 58.404399] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd5b958400 [ 58.405099] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f30f9542bf0 [ 58.405761] R13: 00007ffd5b958730 R14: 0000000000000000 R15: 00000000000000f8 [ 58.406486] [ 58.406720] irq event stamp: 10197 [ 58.407088] hardirqs last enabled at (10209): [] __up_console_sem+0x78/0x80 [ 58.407897] hardirqs last disabled at (10218): [] __up_console_sem+0x5d/0x80 [ 58.408739] softirqs last enabled at (10086): [] irq_exit_rcu+0x93/0xc0 [ 58.409550] softirqs last disabled at (10081): [] irq_exit_rcu+0x93/0xc0 [ 58.410380] ---[ end trace 0000000000000000 ]--- [ 58.411405] ------------[ cut here ]------------ [ 58.411861] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 58.413303] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.414142] Modules linked in: [ 58.414457] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 58.415362] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.416137] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.416631] 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 [ 58.418322] RSP: 0018:ffff88801a717bf0 EFLAGS: 00010286 [ 58.418824] RAX: 0000000000000000 RBX: ffff88800f158640 RCX: 0000000000000000 [ 58.419507] RDX: ffff88800a091b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 58.420215] RBP: ffff88800f158654 R08: 0000000000000001 R09: 0000000000000000 [ 58.420872] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 58.421556] R13: ffffffff84e223a0 R14: ffff88800f158648 R15: ffffffff84daf020 [ 58.422253] FS: 0000555556e45400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 58.423035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.423585] CR2: 00007fa820f986f4 CR3: 000000001a544000 CR4: 0000000000350ef0 [ 58.424274] Call Trace: [ 58.424526] [ 58.424754] nf_ct_net_init+0x224/0x3d0 [ 58.425171] ? __pfx_nf_ct_net_init+0x10/0x10 [ 58.425616] ops_init+0xbb/0x6b0 [ 58.426005] setup_net+0x3d9/0x990 [ 58.426360] ? down_read_killable+0x1d7/0x4e0 [ 58.426794] ? __pfx_setup_net+0x10/0x10 [ 58.427230] ? copy_net_ns+0x17c/0x770 [ 58.427626] copy_net_ns+0x321/0x770 [ 58.428031] create_new_namespaces+0x3f6/0xb30 [ 58.428490] unshare_nsproxy_namespaces+0xc1/0x200 [ 58.428995] ksys_unshare+0x44d/0x8e0 [ 58.429382] ? __pfx_ksys_unshare+0x10/0x10 [ 58.429804] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 58.430392] __x64_sys_unshare+0x31/0x40 [ 58.430795] do_syscall_64+0x3f/0x90 [ 58.431192] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 58.431685] RIP: 0033:0x7f30f94300d7 [ 58.432071] 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 [ 58.433764] RSP: 002b:00007ffd5b958658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 58.434518] RAX: ffffffffffffffda RBX: 00007ffd5b958c98 RCX: 00007f30f94300d7 [ 58.435204] RDX: 00007f30f949a41f RSI: 00007ffd5b9585f0 RDI: 0000000040000000 [ 58.435871] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd5b958400 [ 58.436560] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f30f9542bf0 [ 58.437250] R13: 00007ffd5b958730 R14: 0000000000000000 R15: 00000000000000f8 [ 58.437979] [ 58.438213] irq event stamp: 10949 [ 58.438546] hardirqs last enabled at (10959): [] __up_console_sem+0x78/0x80 [ 58.439371] hardirqs last disabled at (10970): [] __up_console_sem+0x5d/0x80 [ 58.440196] softirqs last enabled at (10726): [] irq_exit_rcu+0x93/0xc0 [ 58.441008] softirqs last disabled at (10713): [] irq_exit_rcu+0x93/0xc0 [ 58.441776] ---[ end trace 0000000000000000 ]--- [ 60.091654] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 62.139052] Bluetooth: hci0: command 0x041b tx timeout executing program [ 64.187044] Bluetooth: hci0: command 0x040f tx timeout [ 66.235025] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 15:52:37 Registers: info registers vcpu 0 RAX=0000000000000023 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801a7175f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000023 R11=0000000000000001 R12=0000000000000023 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 0000555556e45400 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=00007fa820f986f4 CR3=000000001a544000 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=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 info registers vcpu 1 RAX=000000000002315d RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 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 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=00007f916a582210 CR3=000000000cc5c000 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=2037333a32353a35312036312079614d XMM01=5d3638333334332e38352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d36 XMM07=6e72656b2072656c6c616b7a79732037 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000