Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 49.113311] sshd (224) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:32456' (ECDSA) to the list of known hosts. 2023/05/17 12:42:38 fuzzer started 2023/05/17 12:42:38 dialing manager at localhost:44319 2023/05/17 12:42:38 checking machine... 2023/05/17 12:42:38 checking revisions... [ 50.322358] kmemleak: Automatic memory scanning thread ended 2023/05/17 12:42:38 testing simple program... [ 50.373482] systemd-udevd (115) used greatest stack depth: 24016 bytes left [ 50.483359] cgroup: Unknown subsys name 'net' [ 50.559316] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 62.417621] audit: type=1400 audit(1684327370.605:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 63.504234] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 63.505870] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 63.508804] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 63.513382] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 63.514866] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 63.518034] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 63.855163] ------------[ cut here ]------------ [ 63.856269] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 63.857791] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 63.858625] Modules linked in: [ 63.858979] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 63.860144] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 63.864216] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 63.864712] 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 [ 63.866379] RSP: 0018:ffff888017f8fc00 EFLAGS: 00010282 [ 63.866923] RAX: 0000000000000000 RBX: ffff888014554840 RCX: 0000000000000000 [ 63.867586] RDX: ffff88800b8a9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 63.868269] RBP: ffff888014554854 R08: 0000000000000001 R09: 0000000000000000 [ 63.868950] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 63.869612] R13: ffffffff84e23fe0 R14: ffff888014554848 R15: ffffffff84d74dc0 [ 63.870289] FS: 0000555556ef4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 63.871060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.871599] CR2: 00007f3b06b866f4 CR3: 000000000ec04000 CR4: 0000000000350ef0 [ 63.872279] Call Trace: [ 63.872532] [ 63.872760] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 63.873260] ipv4_frags_init_net+0x269/0x440 [ 63.873695] ops_init+0xbb/0x6b0 [ 63.874067] setup_net+0x3d9/0x990 [ 63.874419] ? down_read_killable+0x1d7/0x4e0 [ 63.874852] ? __pfx_setup_net+0x10/0x10 [ 63.875255] ? copy_net_ns+0x17c/0x770 [ 63.875555] copy_net_ns+0x321/0x770 [ 63.875843] create_new_namespaces+0x3f6/0xb30 [ 63.876199] unshare_nsproxy_namespaces+0xc1/0x200 [ 63.876559] ksys_unshare+0x44d/0x8e0 [ 63.876844] ? __pfx_ksys_unshare+0x10/0x10 [ 63.877180] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 63.877598] __x64_sys_unshare+0x31/0x40 [ 63.877921] do_syscall_64+0x3f/0x90 [ 63.878205] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 63.878581] RIP: 0033:0x7f8578f650d7 [ 63.878849] 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 [ 63.880143] RSP: 002b:00007ffc04750458 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 63.880676] RAX: ffffffffffffffda RBX: 00007ffc04750a98 RCX: 00007f8578f650d7 [ 63.881203] RDX: 00007f8578fcf41f RSI: 00007ffc047503f0 RDI: 0000000040000000 [ 63.881704] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc04750200 [ 63.882219] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f8579077bf0 [ 63.882728] R13: 00007ffc04750530 R14: 0000000000000000 R15: 00000000000000f8 [ 63.883259] [ 63.883435] irq event stamp: 8269 [ 63.883679] hardirqs last enabled at (8279): [] __up_console_sem+0x78/0x80 [ 63.884296] hardirqs last disabled at (8290): [] __up_console_sem+0x5d/0x80 [ 63.884920] softirqs last enabled at (7838): [] irq_exit_rcu+0x93/0xc0 [ 63.885507] softirqs last disabled at (7817): [] irq_exit_rcu+0x93/0xc0 [ 63.886113] ---[ end trace 0000000000000000 ]--- [ 63.889093] ------------[ cut here ]------------ [ 63.889427] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 63.890361] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 63.890977] Modules linked in: [ 63.891212] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 63.891866] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 63.892467] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 63.892838] 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 [ 63.894077] RSP: 0018:ffff888017f8fc00 EFLAGS: 00010282 [ 63.894458] RAX: 0000000000000000 RBX: ffff88800ed5ae40 RCX: 0000000000000000 [ 63.894974] RDX: ffff88800b8a9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 63.895472] RBP: ffff88800ed5ae54 R08: 0000000000000001 R09: 0000000000000000 [ 63.895983] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 63.896483] R13: ffffffff84e23fe0 R14: ffff88800ed5ae48 R15: ffffffff84da7d60 [ 63.897004] FS: 0000555556ef4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 63.897561] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.897997] CR2: 00007f3b06b866f4 CR3: 000000000ec04000 CR4: 0000000000350ef0 [ 63.898505] Call Trace: [ 63.898687] [ 63.898857] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 63.899249] ipv6_frags_init_net+0x206/0x3c0 [ 63.899575] ops_init+0xbb/0x6b0 [ 63.899828] setup_net+0x3d9/0x990 [ 63.900110] ? down_read_killable+0x1d7/0x4e0 [ 63.900439] ? __pfx_setup_net+0x10/0x10 [ 63.900728] ? copy_net_ns+0x17c/0x770 [ 63.901039] copy_net_ns+0x321/0x770 [ 63.901327] create_new_namespaces+0x3f6/0xb30 [ 63.901650] unshare_nsproxy_namespaces+0xc1/0x200 [ 63.902024] ksys_unshare+0x44d/0x8e0 [ 63.902307] ? __pfx_ksys_unshare+0x10/0x10 [ 63.902619] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 63.903048] __x64_sys_unshare+0x31/0x40 [ 63.903344] do_syscall_64+0x3f/0x90 [ 63.903617] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 63.903996] RIP: 0033:0x7f8578f650d7 [ 63.904260] 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 [ 63.905508] RSP: 002b:00007ffc04750458 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 63.906051] RAX: ffffffffffffffda RBX: 00007ffc04750a98 RCX: 00007f8578f650d7 [ 63.906542] RDX: 00007f8578fcf41f RSI: 00007ffc047503f0 RDI: 0000000040000000 [ 63.907064] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc04750200 [ 63.907560] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f8579077bf0 [ 63.908064] R13: 00007ffc04750530 R14: 0000000000000000 R15: 00000000000000f8 [ 63.908576] [ 63.908748] irq event stamp: 9903 [ 63.909007] hardirqs last enabled at (9915): [] __up_console_sem+0x78/0x80 [ 63.909598] hardirqs last disabled at (9924): [] __up_console_sem+0x5d/0x80 [ 63.910206] softirqs last enabled at (9938): [] irq_exit_rcu+0x93/0xc0 [ 63.910777] softirqs last disabled at (9933): [] irq_exit_rcu+0x93/0xc0 [ 63.911374] ---[ end trace 0000000000000000 ]--- [ 63.912176] ------------[ cut here ]------------ [ 63.912511] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 63.913625] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 63.914224] Modules linked in: [ 63.914450] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 63.915106] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 63.915677] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 63.916066] 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 [ 63.917305] RSP: 0018:ffff888017f8fbf0 EFLAGS: 00010286 [ 63.917683] RAX: 0000000000000000 RBX: ffff88800ed5a840 RCX: 0000000000000000 [ 63.918200] RDX: ffff88800b8a9b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 63.918689] RBP: ffff88800ed5a854 R08: 0000000000000001 R09: 0000000000000000 [ 63.919202] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 63.919701] R13: ffffffff84e23fe0 R14: ffff88800ed5a848 R15: ffffffff84db0aa0 [ 63.920215] FS: 0000555556ef4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 63.920762] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.921185] CR2: 00007f3b06b866f4 CR3: 000000000ec04000 CR4: 0000000000350ef0 [ 63.921663] Call Trace: [ 63.921842] [ 63.922027] nf_ct_net_init+0x224/0x3d0 [ 63.922324] ? __pfx_nf_ct_net_init+0x10/0x10 [ 63.922643] ops_init+0xbb/0x6b0 [ 63.922910] setup_net+0x3d9/0x990 [ 63.923175] ? down_read_killable+0x1d7/0x4e0 [ 63.923490] ? __pfx_setup_net+0x10/0x10 [ 63.923775] ? copy_net_ns+0x17c/0x770 [ 63.924136] copy_net_ns+0x321/0x770 [ 63.924414] create_new_namespaces+0x3f6/0xb30 [ 63.924742] unshare_nsproxy_namespaces+0xc1/0x200 [ 63.925113] ksys_unshare+0x44d/0x8e0 [ 63.925393] ? __pfx_ksys_unshare+0x10/0x10 [ 63.925699] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 63.926122] __x64_sys_unshare+0x31/0x40 [ 63.926417] do_syscall_64+0x3f/0x90 [ 63.926685] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 63.927071] RIP: 0033:0x7f8578f650d7 [ 63.927333] 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 [ 63.928573] RSP: 002b:00007ffc04750458 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 63.929120] RAX: ffffffffffffffda RBX: 00007ffc04750a98 RCX: 00007f8578f650d7 [ 63.929606] RDX: 00007f8578fcf41f RSI: 00007ffc047503f0 RDI: 0000000040000000 [ 63.930114] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc04750200 [ 63.930605] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f8579077bf0 [ 63.931122] R13: 00007ffc04750530 R14: 0000000000000000 R15: 00000000000000f8 [ 63.931615] [ 63.931782] irq event stamp: 10715 [ 63.932060] hardirqs last enabled at (10737): [] __up_console_sem+0x78/0x80 [ 63.932633] hardirqs last disabled at (10746): [] __up_console_sem+0x5d/0x80 [ 63.933227] softirqs last enabled at (10732): [] irq_exit_rcu+0x93/0xc0 [ 63.933782] softirqs last disabled at (10723): [] irq_exit_rcu+0x93/0xc0 [ 63.934357] ---[ end trace 0000000000000000 ]--- executing program [ 65.588639] Bluetooth: hci0: command 0x0409 tx timeout [ 67.635962] Bluetooth: hci0: command 0x041b tx timeout executing program [ 69.684080] Bluetooth: hci0: command 0x040f tx timeout executing program [ 71.731962] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 12:42:38 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888017f8f618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556ef4400 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=00007f3b06b866f4 CR3=000000000ec04000 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=0000000000049d27 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f RFL=00000206 [-----P-] 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=00007ff3bc038078 CR3=0000000013a5e000 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=2032353a32343a32312037312079614d XMM01=5d3434313036382e33362020205b203a XMM02=435020647261646e61745320554d4551 XMM03=312e3120534f4942202c293639393120 XMM04=32312e3120534f4942202c2936393931 XMM05=20435020647261646e61745320554d45 XMM06=205d3434313036382e33362020205b20 XMM07=732032353a32343a3231203731207961 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000