syzkaller login: [ 29.520248] sshd (210) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:36366' (ECDSA) to the list of known hosts. 2023/05/16 18:15:16 fuzzer started 2023/05/16 18:15:17 dialing manager at localhost:35573 2023/05/16 18:15:17 checking machine... 2023/05/16 18:15:17 checking revisions... [ 34.391548] kmemleak: Automatic memory scanning thread ended 2023/05/16 18:15:17 testing simple program... [ 34.462155] cgroup: Unknown subsys name 'net' [ 34.554143] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 46.956222] audit: type=1400 audit(1684260930.015:6): 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 [ 48.067027] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.068683] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.071491] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.075257] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.077999] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 48.079263] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 48.498224] ------------[ cut here ]------------ [ 48.499069] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 48.501600] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 48.502598] Modules linked in: [ 48.503248] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 48.505484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 48.508269] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 48.509532] 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 [ 48.511928] RSP: 0018:ffff88801f997c00 EFLAGS: 00010282 [ 48.512659] RAX: 0000000000000000 RBX: ffff88800ebe5c40 RCX: 0000000000000000 [ 48.513695] RDX: ffff888016f51b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 48.514705] RBP: ffff88800ebe5c54 R08: 0000000000000001 R09: 0000000000000000 [ 48.515713] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 48.516726] R13: ffffffff84e223a0 R14: ffff88800ebe5c48 R15: ffffffff84d73340 [ 48.517743] FS: 0000555556af4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 48.518869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.519655] CR2: 00007f421b82d6f4 CR3: 00000000203cc000 CR4: 0000000000350ef0 [ 48.520635] Call Trace: [ 48.521056] [ 48.521409] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 48.522137] ipv4_frags_init_net+0x269/0x440 [ 48.522760] ops_init+0xbb/0x6b0 [ 48.523292] setup_net+0x3d9/0x990 [ 48.523836] ? down_read_killable+0x1d7/0x4e0 [ 48.524473] ? __pfx_setup_net+0x10/0x10 [ 48.525090] ? copy_net_ns+0x17c/0x770 [ 48.525659] copy_net_ns+0x321/0x770 [ 48.526229] create_new_namespaces+0x3f6/0xb30 [ 48.527038] unshare_nsproxy_namespaces+0xc1/0x200 [ 48.527730] ksys_unshare+0x44d/0x8e0 [ 48.528314] ? __pfx_ksys_unshare+0x10/0x10 [ 48.528984] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 48.529778] __x64_sys_unshare+0x31/0x40 [ 48.530398] do_syscall_64+0x3f/0x90 [ 48.530964] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 48.531681] RIP: 0033:0x7f15cf4560d7 [ 48.532233] 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 [ 48.534647] RSP: 002b:00007ffddef34568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 48.535708] RAX: ffffffffffffffda RBX: 00007ffddef34ba8 RCX: 00007f15cf4560d7 [ 48.536685] RDX: 00007f15cf4c041f RSI: 00007ffddef34500 RDI: 0000000040000000 [ 48.537691] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffddef34310 [ 48.538670] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f15cf568bf0 [ 48.539654] R13: 00007ffddef34640 R14: 0000000000000000 R15: 00000000000000f8 [ 48.540659] [ 48.541045] irq event stamp: 7437 [ 48.541514] hardirqs last enabled at (7447): [] __up_console_sem+0x78/0x80 [ 48.542706] hardirqs last disabled at (7458): [] __up_console_sem+0x5d/0x80 [ 48.543873] softirqs last enabled at (6980): [] irq_exit_rcu+0x93/0xc0 [ 48.545026] softirqs last disabled at (6925): [] irq_exit_rcu+0x93/0xc0 [ 48.546170] ---[ end trace 0000000000000000 ]--- [ 48.552542] ------------[ cut here ]------------ [ 48.553242] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 48.555044] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 48.556122] Modules linked in: [ 48.556538] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 48.557745] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 48.558771] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 48.559443] 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 [ 48.561671] RSP: 0018:ffff88801f997c00 EFLAGS: 00010282 [ 48.562362] RAX: 0000000000000000 RBX: ffff88800d79f640 RCX: 0000000000000000 [ 48.563268] RDX: ffff888016f51b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 48.564177] RBP: ffff88800d79f654 R08: 0000000000000001 R09: 0000000000000000 [ 48.565095] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 48.565995] R13: ffffffff84e223a0 R14: ffff88800d79f648 R15: ffffffff84da62e0 [ 48.566885] FS: 0000555556af4400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 48.567893] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.568613] CR2: 00007fc1f72d8608 CR3: 00000000203cc000 CR4: 0000000000350ee0 [ 48.569538] Call Trace: [ 48.569905] [ 48.570209] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 48.570876] ipv6_frags_init_net+0x206/0x3c0 [ 48.571441] ops_init+0xbb/0x6b0 [ 48.571935] setup_net+0x3d9/0x990 [ 48.572395] ? down_read_killable+0x1d7/0x4e0 [ 48.573013] ? __pfx_setup_net+0x10/0x10 [ 48.573534] ? copy_net_ns+0x17c/0x770 [ 48.574080] copy_net_ns+0x321/0x770 [ 48.574562] create_new_namespaces+0x3f6/0xb30 [ 48.575201] unshare_nsproxy_namespaces+0xc1/0x200 [ 48.575890] ksys_unshare+0x44d/0x8e0 [ 48.576394] ? __pfx_ksys_unshare+0x10/0x10 [ 48.577002] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 48.577733] __x64_sys_unshare+0x31/0x40 [ 48.578282] do_syscall_64+0x3f/0x90 [ 48.578773] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 48.579455] RIP: 0033:0x7f15cf4560d7 [ 48.579963] 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 [ 48.582223] RSP: 002b:00007ffddef34568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 48.583198] RAX: ffffffffffffffda RBX: 00007ffddef34ba8 RCX: 00007f15cf4560d7 [ 48.584110] RDX: 00007f15cf4c041f RSI: 00007ffddef34500 RDI: 0000000040000000 [ 48.585027] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffddef34310 [ 48.585952] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f15cf568bf0 [ 48.586871] R13: 00007ffddef34640 R14: 0000000000000000 R15: 00000000000000f8 [ 48.587778] [ 48.588128] irq event stamp: 9243 [ 48.588563] hardirqs last enabled at (9253): [] __up_console_sem+0x78/0x80 [ 48.589663] hardirqs last disabled at (9264): [] __up_console_sem+0x5d/0x80 [ 48.590739] softirqs last enabled at (9060): [] irq_exit_rcu+0x93/0xc0 [ 48.591818] softirqs last disabled at (9053): [] irq_exit_rcu+0x93/0xc0 [ 48.592886] ---[ end trace 0000000000000000 ]--- [ 48.594290] ------------[ cut here ]------------ [ 48.596108] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 48.598382] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 48.599565] Modules linked in: [ 48.600154] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 48.601500] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 48.602662] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 48.603453] 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 [ 48.605913] RSP: 0018:ffff88801f997bf0 EFLAGS: 00010286 [ 48.606597] RAX: 0000000000000000 RBX: ffff88800d79e640 RCX: 0000000000000000 [ 48.607632] RDX: ffff888016f51b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 48.608647] RBP: ffff88800d79e654 R08: 0000000000000001 R09: 0000000000000000 [ 48.609730] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 48.610877] R13: ffffffff84e223a0 R14: ffff88800d79e648 R15: ffffffff84daf020 [ 48.611751] FS: 0000555556af4400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 48.612888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.613665] CR2: 00007fc1f72d8608 CR3: 00000000203cc000 CR4: 0000000000350ee0 [ 48.614734] Call Trace: [ 48.615222] [ 48.615527] nf_ct_net_init+0x224/0x3d0 [ 48.616259] ? __pfx_nf_ct_net_init+0x10/0x10 [ 48.617026] ops_init+0xbb/0x6b0 [ 48.617483] setup_net+0x3d9/0x990 [ 48.618137] ? down_read_killable+0x1d7/0x4e0 [ 48.618711] ? __pfx_setup_net+0x10/0x10 [ 48.619405] ? copy_net_ns+0x17c/0x770 [ 48.620130] copy_net_ns+0x321/0x770 [ 48.620629] create_new_namespaces+0x3f6/0xb30 [ 48.621400] unshare_nsproxy_namespaces+0xc1/0x200 [ 48.622238] ksys_unshare+0x44d/0x8e0 [ 48.622748] ? __pfx_ksys_unshare+0x10/0x10 [ 48.623440] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 48.624389] __x64_sys_unshare+0x31/0x40 [ 48.625106] do_syscall_64+0x3f/0x90 [ 48.625590] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 48.626418] RIP: 0033:0x7f15cf4560d7 [ 48.627067] 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 [ 48.629412] RSP: 002b:00007ffddef34568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 48.630596] RAX: ffffffffffffffda RBX: 00007ffddef34ba8 RCX: 00007f15cf4560d7 [ 48.631603] RDX: 00007f15cf4c041f RSI: 00007ffddef34500 RDI: 0000000040000000 [ 48.632655] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffddef34310 [ 48.633661] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f15cf568bf0 [ 48.634638] R13: 00007ffddef34640 R14: 0000000000000000 R15: 00000000000000f8 [ 48.635583] [ 48.635917] irq event stamp: 12917 [ 48.636348] hardirqs last enabled at (12927): [] __up_console_sem+0x78/0x80 [ 48.637475] hardirqs last disabled at (12938): [] __up_console_sem+0x5d/0x80 [ 48.638568] softirqs last enabled at (12888): [] irq_exit_rcu+0x93/0xc0 [ 48.639605] softirqs last disabled at (12865): [] irq_exit_rcu+0x93/0xc0 [ 48.640647] ---[ end trace 0000000000000000 ]--- executing program [ 50.149352] Bluetooth: hci0: command 0x0409 tx timeout [ 52.197293] Bluetooth: hci0: command 0x041b tx timeout executing program [ 54.244887] Bluetooth: hci0: command 0x040f tx timeout executing program [ 56.292885] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 18:15:31 Registers: info registers vcpu 0 RAX=0000000000000064 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801f997618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000064 R11=0000000000000001 R12=0000000000000064 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 0000555556af4400 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=00007f421b82d6f4 CR3=00000000203cc000 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=0000000080000000 RBX=dffffc0000000000 RCX=0000000080000000 RDX=0000000000000001 RSI=ffffffff815a0f84 RDI=ffffc9000064e069 RBP=ffff888015af7d28 RSP=ffff888015af7c58 R8 =0000000000000004 R9 =000000007fff0000 R10=000000007fff0000 R11=0000000000000000 R12=00000000c000003e R13=ffff888015af7d60 R14=ffff888015af7d38 R15=ffffc9000064e070 RIP=ffffffff814bf881 RFL=00000292 [--S-A--] 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 00007fc1f7e9e900 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=00007fc1f728f780 CR3=00000000159c8000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=8fdcb85e9fa3bed5000000000013b9f8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=505219d3fc3d5ad900000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000020000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000