syzkaller login: [ 44.516325] sshd (217) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:41023' (ECDSA) to the list of known hosts. 2023/05/17 08:20:51 fuzzer started 2023/05/17 08:20:52 dialing manager at localhost:35573 2023/05/17 08:20:52 checking machine... 2023/05/17 08:20:52 checking revisions... [ 47.289483] kmemleak: Automatic memory scanning thread ended 2023/05/17 08:20:52 testing simple program... [ 47.356413] cgroup: Unknown subsys name 'net' [ 47.464733] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 60.785744] audit: type=1400 audit(1684311665.933:6): 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 [ 61.903894] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 61.906267] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 61.907127] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 61.914903] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 61.917794] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 61.919994] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 62.293595] ------------[ cut here ]------------ [ 62.294075] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 62.295170] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.295893] Modules linked in: [ 62.296170] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.296933] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.297591] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.298058] 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 [ 62.299454] RSP: 0018:ffff88801918fc00 EFLAGS: 00010282 [ 62.299915] RAX: 0000000000000000 RBX: ffff88800dd46c40 RCX: 0000000000000000 [ 62.300474] RDX: ffff88801ba80000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.301062] RBP: ffff88800dd46c54 R08: 0000000000000001 R09: 0000000000000000 [ 62.313799] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 62.314410] R13: ffffffff84e223a0 R14: ffff88800dd46c48 R15: ffffffff84d73340 [ 62.315105] FS: 0000555556217400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.315900] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.316368] CR2: 00007f99b1dec6f4 CR3: 000000000e30a000 CR4: 0000000000350ee0 [ 62.317040] Call Trace: [ 62.317261] [ 62.317461] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 62.322013] ipv4_frags_init_net+0x269/0x440 [ 62.322388] ops_init+0xbb/0x6b0 [ 62.322686] setup_net+0x3d9/0x990 [ 62.323044] ? down_read_killable+0x1d7/0x4e0 [ 62.323419] ? __pfx_setup_net+0x10/0x10 [ 62.323780] ? copy_net_ns+0x17c/0x770 [ 62.324120] copy_net_ns+0x321/0x770 [ 62.324437] create_new_namespaces+0x3f6/0xb30 [ 62.324854] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.325261] ksys_unshare+0x44d/0x8e0 [ 62.325608] ? __pfx_ksys_unshare+0x10/0x10 [ 62.325999] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.326472] __x64_sys_unshare+0x31/0x40 [ 62.326842] do_syscall_64+0x3f/0x90 [ 62.327160] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.327569] RIP: 0033:0x7f29302fe0d7 [ 62.327896] 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 [ 62.329274] RSP: 002b:00007ffd6411d098 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 62.329920] RAX: ffffffffffffffda RBX: 00007ffd6411d6d8 RCX: 00007f29302fe0d7 [ 62.330483] RDX: 00007f293036841f RSI: 00007ffd6411d030 RDI: 0000000040000000 [ 62.331066] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd6411ce40 [ 62.331622] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2930410bf0 [ 62.332204] R13: 00007ffd6411d170 R14: 0000000000000000 R15: 00000000000000f8 [ 62.332800] [ 62.333001] irq event stamp: 10321 [ 62.333285] hardirqs last enabled at (10331): [] __up_console_sem+0x78/0x80 [ 62.347049] hardirqs last disabled at (10352): [] __up_console_sem+0x5d/0x80 [ 62.347757] softirqs last enabled at (10348): [] irq_exit_rcu+0x93/0xc0 [ 62.348416] softirqs last disabled at (10339): [] irq_exit_rcu+0x93/0xc0 [ 62.349097] ---[ end trace 0000000000000000 ]--- [ 62.356107] ------------[ cut here ]------------ [ 62.356508] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 62.359917] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.360610] Modules linked in: [ 62.360909] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.361648] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.362317] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.362772] 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 [ 62.364171] RSP: 0018:ffff88801918fc00 EFLAGS: 00010282 [ 62.364598] RAX: 0000000000000000 RBX: ffff8880164ef440 RCX: 0000000000000000 [ 62.365174] RDX: ffff88801ba80000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.365768] RBP: ffff8880164ef454 R08: 0000000000000001 R09: 0000000000000000 [ 62.366327] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 62.366922] R13: ffffffff84e223a0 R14: ffff8880164ef448 R15: ffffffff84da62e0 [ 62.367484] FS: 0000555556217400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.368140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.368602] CR2: 00007f99b1dec6f4 CR3: 000000000e30a000 CR4: 0000000000350ee0 [ 62.369197] Call Trace: [ 62.369421] [ 62.369648] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 62.370093] ipv6_frags_init_net+0x206/0x3c0 [ 62.370464] ops_init+0xbb/0x6b0 [ 62.370798] setup_net+0x3d9/0x990 [ 62.371104] ? down_read_killable+0x1d7/0x4e0 [ 62.371480] ? __pfx_setup_net+0x10/0x10 [ 62.371841] ? copy_net_ns+0x17c/0x770 [ 62.372178] copy_net_ns+0x321/0x770 [ 62.372496] create_new_namespaces+0x3f6/0xb30 [ 62.372921] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.373330] ksys_unshare+0x44d/0x8e0 [ 62.373674] ? __pfx_ksys_unshare+0x10/0x10 [ 62.374073] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.374547] __x64_sys_unshare+0x31/0x40 [ 62.374928] do_syscall_64+0x3f/0x90 [ 62.375247] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.375671] RIP: 0033:0x7f29302fe0d7 [ 62.376015] 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 [ 62.377414] RSP: 002b:00007ffd6411d098 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 62.379059] RAX: ffffffffffffffda RBX: 00007ffd6411d6d8 RCX: 00007f29302fe0d7 [ 62.380746] RDX: 00007f293036841f RSI: 00007ffd6411d030 RDI: 0000000040000000 [ 62.381900] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd6411ce40 [ 62.382452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2930410bf0 [ 62.383042] R13: 00007ffd6411d170 R14: 0000000000000000 R15: 00000000000000f8 [ 62.383617] [ 62.383856] irq event stamp: 12151 [ 62.384145] hardirqs last enabled at (12161): [] __up_console_sem+0x78/0x80 [ 62.384884] hardirqs last disabled at (12178): [] __up_console_sem+0x5d/0x80 [ 62.385551] softirqs last enabled at (12174): [] irq_exit_rcu+0x93/0xc0 [ 62.386259] softirqs last disabled at (12169): [] irq_exit_rcu+0x93/0xc0 [ 62.386937] ---[ end trace 0000000000000000 ]--- [ 62.388147] ------------[ cut here ]------------ [ 62.388525] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 62.389779] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.390459] Modules linked in: [ 62.390756] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.391484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.392145] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.392565] 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 [ 62.393975] RSP: 0018:ffff88801918fbf0 EFLAGS: 00010286 [ 62.394404] RAX: 0000000000000000 RBX: ffff8880164eec40 RCX: 0000000000000000 [ 62.394987] RDX: ffff88801ba80000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.395536] RBP: ffff8880164eec54 R08: 0000000000000001 R09: 0000000000000000 [ 62.396111] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 62.396664] R13: ffffffff84e223a0 R14: ffff8880164eec48 R15: ffffffff84daf020 [ 62.397249] FS: 0000555556217400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.397920] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.398387] CR2: 00007f99b1dec6f4 CR3: 000000000e30a000 CR4: 0000000000350ee0 [ 62.399160] Call Trace: [ 62.399379] [ 62.399580] nf_ct_net_init+0x224/0x3d0 [ 62.399951] ? __pfx_nf_ct_net_init+0x10/0x10 [ 62.400329] ops_init+0xbb/0x6b0 [ 62.400624] setup_net+0x3d9/0x990 [ 62.400956] ? down_read_killable+0x1d7/0x4e0 [ 62.401334] ? __pfx_setup_net+0x10/0x10 [ 62.401732] ? copy_net_ns+0x17c/0x770 [ 62.402057] copy_net_ns+0x321/0x770 [ 62.402376] create_new_namespaces+0x3f6/0xb30 [ 62.402795] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.403203] ksys_unshare+0x44d/0x8e0 [ 62.403531] ? __pfx_ksys_unshare+0x10/0x10 [ 62.403932] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.404407] __x64_sys_unshare+0x31/0x40 [ 62.404786] do_syscall_64+0x3f/0x90 [ 62.405107] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.405529] RIP: 0033:0x7f29302fe0d7 [ 62.405891] 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 [ 62.407294] RSP: 002b:00007ffd6411d098 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 62.407927] RAX: ffffffffffffffda RBX: 00007ffd6411d6d8 RCX: 00007f29302fe0d7 [ 62.408486] RDX: 00007f293036841f RSI: 00007ffd6411d030 RDI: 0000000040000000 [ 62.409078] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd6411ce40 [ 62.409668] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2930410bf0 [ 62.410256] R13: 00007ffd6411d170 R14: 0000000000000000 R15: 00000000000000f8 [ 62.410862] [ 62.411067] irq event stamp: 12993 [ 62.411353] hardirqs last enabled at (13003): [] __up_console_sem+0x78/0x80 [ 62.412060] hardirqs last disabled at (13014): [] __up_console_sem+0x5d/0x80 [ 62.412770] softirqs last enabled at (12688): [] irq_exit_rcu+0x93/0xc0 [ 62.413431] softirqs last disabled at (12623): [] irq_exit_rcu+0x93/0xc0 [ 62.414127] ---[ end trace 0000000000000000 ]--- [ 63.990686] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 66.041964] Bluetooth: hci0: command 0x041b tx timeout [ 68.080814] Bluetooth: hci0: command 0x040f tx timeout executing program [ 70.129784] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 08:21:07 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=000055d8fed2d4c0 RCX=0000000000000000 RDX=0000000000074756 RSI=000055d8fed2ca20 RDI=00007fce58000b80 RBP=0000000000000000 RSP=00007fce621c43f0 R8 =0000000000000011 R9 =0000000000000640 R10=a3d70a3d70a3d70b R11=2ce33e6c02ce33e7 R12=000055d8fed295c0 R13=00007fce621c4d57 R14=0000000000000004 R15=00007fce621c4da8 RIP=000055d8fd2ef151 RFL=00000246 [---Z-P-] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA] SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fce621e5700 00000000 00000000 GS =0000 0000000000000000 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=00007f2ea6a0b550 CR3=000000000de1a000 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=000007e7002b00000607150803110502 XMM01=00000000000000003043545500435455 XMM02=00000000000000000000000000000000 XMM03=303030303030303030303030203a3031 XMM04=65203938203834203032203431203662 XMM05=3834203865203938203834206230203e XMM06=38652034382032652034322030322037 XMM07=00000000000000000000000000000000 XMM08=362020205b3e343c0a30343333376434 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=00000000000028b5 RBX=ffff88806cf3dfc0 RCX=ffffffff812cd9ff RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81808777 RBP=ffff88800844f780 RSP=ffff88801918f9e8 R8 =0000000000000001 R9 =fffffbfff0ef2d39 R10=ffffffff877969cf R11=0000000000000001 R12=00000000ffffffff R13=ffff88806cf3dfe0 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff818085dd RFL=00000282 [--S----] 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 0000555556217400 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=00007f99b1dec6f4 CR3=000000000e30a000 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