[ 34.638978] sshd (211) used greatest stack depth: 24024 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:5944' (ECDSA) to the list of known hosts. 2023/05/18 03:43:50 fuzzer started 2023/05/18 03:43:50 dialing manager at localhost:44319 2023/05/18 03:43:50 checking machine... 2023/05/18 03:43:50 checking revisions... syzkaller login: [ 39.453208] kmemleak: Automatic memory scanning thread ended 2023/05/18 03:43:50 testing simple program... [ 39.518891] cgroup: Unknown subsys name 'net' [ 39.580368] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.943205] audit: type=1400 audit(1684381443.476:6): 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 [ 53.073177] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.075286] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.076743] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.081692] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.084127] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.085541] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.523951] ------------[ cut here ]------------ [ 53.524775] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.527058] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.528386] Modules linked in: [ 53.528990] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.533839] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.534910] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.535609] 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 [ 53.537875] RSP: 0018:ffff88801fd57c00 EFLAGS: 00010282 [ 53.538586] RAX: 0000000000000000 RBX: ffff88800de07040 RCX: 0000000000000000 [ 53.539504] RDX: ffff88800ffc51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.540387] RBP: ffff88800de07054 R08: 0000000000000001 R09: 0000000000000000 [ 53.541315] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.542244] R13: ffffffff84e23fe0 R14: ffff88800de07048 R15: ffffffff84d74dc0 [ 53.543169] FS: 0000555555c88400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.544213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.544989] CR2: 00007f17fe54b6f4 CR3: 000000000d43a000 CR4: 0000000000350ee0 [ 53.545905] Call Trace: [ 53.546243] [ 53.546579] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.547217] ipv4_frags_init_net+0x269/0x440 [ 53.547824] ops_init+0xbb/0x6b0 [ 53.548287] setup_net+0x3d9/0x990 [ 53.548788] ? down_read_killable+0x1d7/0x4e0 [ 53.549398] ? __pfx_setup_net+0x10/0x10 [ 53.549953] ? copy_net_ns+0x17c/0x770 [ 53.550504] copy_net_ns+0x321/0x770 [ 53.551024] create_new_namespaces+0x3f6/0xb30 [ 53.551673] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.552309] ksys_unshare+0x44d/0x8e0 [ 53.552862] ? __pfx_ksys_unshare+0x10/0x10 [ 53.553427] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.554192] __x64_sys_unshare+0x31/0x40 [ 53.554767] do_syscall_64+0x3f/0x90 [ 53.555281] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.555974] RIP: 0033:0x7f68388c40d7 [ 53.556489] 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 [ 53.558886] RSP: 002b:00007ffeeb89f6d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.559912] RAX: ffffffffffffffda RBX: 00007ffeeb89fd18 RCX: 00007f68388c40d7 [ 53.560877] RDX: 00007f683892e41f RSI: 00007ffeeb89f670 RDI: 0000000040000000 [ 53.561849] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeb89f480 [ 53.562832] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f68389d6bf0 [ 53.563775] R13: 00007ffeeb89f7b0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.564749] [ 53.565095] irq event stamp: 8543 [ 53.565594] hardirqs last enabled at (8555): [] __up_console_sem+0x78/0x80 [ 53.566761] hardirqs last disabled at (8566): [] __up_console_sem+0x5d/0x80 [ 53.567921] softirqs last enabled at (8450): [] irq_exit_rcu+0x93/0xc0 [ 53.569056] softirqs last disabled at (8445): [] irq_exit_rcu+0x93/0xc0 [ 53.570170] ---[ end trace 0000000000000000 ]--- [ 53.575826] ------------[ cut here ]------------ [ 53.576493] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.578288] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.579437] Modules linked in: [ 53.579888] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.581147] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.582236] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.582960] 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 [ 53.585354] RSP: 0018:ffff88801fd57c00 EFLAGS: 00010282 [ 53.586107] RAX: 0000000000000000 RBX: ffff88800d71f640 RCX: 0000000000000000 [ 53.587100] RDX: ffff88800ffc51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.588081] RBP: ffff88800d71f654 R08: 0000000000000001 R09: 0000000000000000 [ 53.589048] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.590009] R13: ffffffff84e23fe0 R14: ffff88800d71f648 R15: ffffffff84da7d60 [ 53.590952] FS: 0000555555c88400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.592019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.592804] CR2: 00007f17fe54b6f4 CR3: 000000000d43a000 CR4: 0000000000350ee0 [ 53.593776] Call Trace: [ 53.594124] [ 53.594480] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.595147] ipv6_frags_init_net+0x206/0x3c0 [ 53.595773] ops_init+0xbb/0x6b0 [ 53.596248] setup_net+0x3d9/0x990 [ 53.596767] ? down_read_killable+0x1d7/0x4e0 [ 53.597402] ? __pfx_setup_net+0x10/0x10 [ 53.597975] ? copy_net_ns+0x17c/0x770 [ 53.598540] copy_net_ns+0x321/0x770 [ 53.599045] create_new_namespaces+0x3f6/0xb30 [ 53.599688] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.600303] ksys_unshare+0x44d/0x8e0 [ 53.600843] ? __pfx_ksys_unshare+0x10/0x10 [ 53.601427] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.602200] __x64_sys_unshare+0x31/0x40 [ 53.602766] do_syscall_64+0x3f/0x90 [ 53.603264] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.603965] RIP: 0033:0x7f68388c40d7 [ 53.604485] 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 [ 53.606675] RSP: 002b:00007ffeeb89f6d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.607620] RAX: ffffffffffffffda RBX: 00007ffeeb89fd18 RCX: 00007f68388c40d7 [ 53.608509] RDX: 00007f683892e41f RSI: 00007ffeeb89f670 RDI: 0000000040000000 [ 53.609379] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeb89f480 [ 53.610273] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f68389d6bf0 [ 53.611153] R13: 00007ffeeb89f7b0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.612066] [ 53.612370] irq event stamp: 10537 [ 53.612828] hardirqs last enabled at (10549): [] __up_console_sem+0x78/0x80 [ 53.613896] hardirqs last disabled at (10560): [] __up_console_sem+0x5d/0x80 [ 53.614958] softirqs last enabled at (9750): [] irq_exit_rcu+0x93/0xc0 [ 53.615985] softirqs last disabled at (9551): [] irq_exit_rcu+0x93/0xc0 [ 53.617043] ---[ end trace 0000000000000000 ]--- [ 53.618397] ------------[ cut here ]------------ [ 53.619025] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.621001] WARNING: CPU: 1 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.622150] Modules linked in: [ 53.622608] CPU: 1 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 53.623821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.624895] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.625592] 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 [ 53.627847] RSP: 0018:ffff88801fd57bf0 EFLAGS: 00010286 [ 53.628556] RAX: 0000000000000000 RBX: ffff88800d71ee40 RCX: 0000000000000000 [ 53.629512] RDX: ffff88800ffc51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 53.630422] RBP: ffff88800d71ee54 R08: 0000000000000001 R09: 0000000000000000 [ 53.631357] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.632294] R13: ffffffff84e23fe0 R14: ffff88800d71ee48 R15: ffffffff84db0aa0 [ 53.633227] FS: 0000555555c88400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 53.634244] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.635007] CR2: 00007f17fe54b6f4 CR3: 000000000d43a000 CR4: 0000000000350ee0 [ 53.635934] Call Trace: [ 53.636271] [ 53.636614] nf_ct_net_init+0x224/0x3d0 [ 53.637178] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.637802] ops_init+0xbb/0x6b0 [ 53.638270] setup_net+0x3d9/0x990 [ 53.638771] ? down_read_killable+0x1d7/0x4e0 [ 53.639352] ? __pfx_setup_net+0x10/0x10 [ 53.639968] ? copy_net_ns+0x17c/0x770 [ 53.640612] copy_net_ns+0x321/0x770 [ 53.641199] create_new_namespaces+0x3f6/0xb30 [ 53.641929] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.642699] ksys_unshare+0x44d/0x8e0 [ 53.643287] ? __pfx_ksys_unshare+0x10/0x10 [ 53.643981] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.644887] __x64_sys_unshare+0x31/0x40 [ 53.645544] do_syscall_64+0x3f/0x90 [ 53.646113] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.646926] RIP: 0033:0x7f68388c40d7 [ 53.647512] 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 [ 53.650120] RSP: 002b:00007ffeeb89f6d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 53.651242] RAX: ffffffffffffffda RBX: 00007ffeeb89fd18 RCX: 00007f68388c40d7 [ 53.652266] RDX: 00007f683892e41f RSI: 00007ffeeb89f670 RDI: 0000000040000000 [ 53.653299] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeeb89f480 [ 53.654334] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f68389d6bf0 [ 53.655398] R13: 00007ffeeb89f7b0 R14: 0000000000000000 R15: 00000000000000f8 [ 53.656496] [ 53.656873] irq event stamp: 11299 [ 53.657388] hardirqs last enabled at (11309): [] __up_console_sem+0x78/0x80 [ 53.658662] hardirqs last disabled at (11320): [] __up_console_sem+0x5d/0x80 [ 53.659913] softirqs last enabled at (10800): [] irq_exit_rcu+0x93/0xc0 [ 53.661166] softirqs last disabled at (10795): [] irq_exit_rcu+0x93/0xc0 [ 53.662399] ---[ end trace 0000000000000000 ]--- executing program [ 55.148123] Bluetooth: hci0: command 0x0409 tx timeout [ 57.194542] Bluetooth: hci0: command 0x041b tx timeout executing program [ 59.242531] Bluetooth: hci0: command 0x040f tx timeout executing program [ 61.291512] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 03:44:03 Registers: info registers vcpu 0 RAX=000000000001e155 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 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 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=00007f0f89f90140 CR3=000000000efd2000 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=80d21042c03945bfd84eaaf8d1962706 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=c886ca5df2a8f1dd000000000013c4f0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=c983e5e12916cca000000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000047 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801fd575f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000047 R11=0000000000000001 R12=0000000000000047 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 0000555555c88400 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=00007f17fe54b6f4 CR3=000000000d43a000 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