Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.247262] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:31929' (ECDSA) to the list of known hosts. 2023/05/16 18:36:18 fuzzer started 2023/05/16 18:36:19 dialing manager at localhost:35573 2023/05/16 18:36:19 checking machine... 2023/05/16 18:36:19 checking revisions... [ 40.462747] kmemleak: Automatic memory scanning thread ended 2023/05/16 18:36:19 testing simple program... [ 40.531473] cgroup: Unknown subsys name 'net' [ 40.587899] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 53.010997] audit: type=1400 audit(1684262191.957:6): avc: denied { execmem } for pid=255 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 54.130266] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.131796] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.133725] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.138507] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.140286] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.141737] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.536288] ------------[ cut here ]------------ [ 54.537109] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 54.539106] WARNING: CPU: 0 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.540391] Modules linked in: [ 54.540912] CPU: 0 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.545496] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.546655] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.547422] 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 [ 54.549873] RSP: 0018:ffff888016a27c00 EFLAGS: 00010282 [ 54.550630] RAX: 0000000000000000 RBX: ffff888006af6040 RCX: 0000000000000000 [ 54.551650] RDX: ffff88800fcf9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.552651] RBP: ffff888006af6054 R08: 0000000000000001 R09: 0000000000000000 [ 54.553675] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 54.554666] R13: ffffffff84e223a0 R14: ffff888006af6048 R15: ffffffff84d73340 [ 54.555666] FS: 00005555555b8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.556788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.557635] CR2: 00007f482824c000 CR3: 000000000e6d0000 CR4: 0000000000350ef0 [ 54.558634] Call Trace: [ 54.559026] [ 54.559357] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 54.560075] ipv4_frags_init_net+0x269/0x440 [ 54.560694] ops_init+0xbb/0x6b0 [ 54.561257] setup_net+0x3d9/0x990 [ 54.561764] ? down_read_killable+0x1d7/0x4e0 [ 54.562446] ? __pfx_setup_net+0x10/0x10 [ 54.563028] ? copy_net_ns+0x17c/0x770 [ 54.563577] copy_net_ns+0x321/0x770 [ 54.564145] create_new_namespaces+0x3f6/0xb30 [ 54.564780] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.565479] ksys_unshare+0x44d/0x8e0 [ 54.566036] ? __pfx_ksys_unshare+0x10/0x10 [ 54.566623] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.567456] __x64_sys_unshare+0x31/0x40 [ 54.568056] do_syscall_64+0x3f/0x90 [ 54.568571] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.569313] RIP: 0033:0x7fd04d36b0d7 [ 54.569818] 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 [ 54.572182] RSP: 002b:00007ffce3705478 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 54.573247] RAX: ffffffffffffffda RBX: 00007ffce3705ab8 RCX: 00007fd04d36b0d7 [ 54.574199] RDX: 00007fd04d3d541f RSI: 00007ffce3705410 RDI: 0000000040000000 [ 54.575158] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffce3705220 [ 54.576101] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fd04d47dbf0 [ 54.577076] R13: 00007ffce3705550 R14: 0000000000000000 R15: 00000000000000f8 [ 54.578048] [ 54.578371] irq event stamp: 9499 [ 54.578824] hardirqs last enabled at (9509): [] __up_console_sem+0x78/0x80 [ 54.579968] hardirqs last disabled at (9520): [] __up_console_sem+0x5d/0x80 [ 54.581117] softirqs last enabled at (9406): [] irq_exit_rcu+0x93/0xc0 [ 54.582233] softirqs last disabled at (9401): [] irq_exit_rcu+0x93/0xc0 [ 54.583325] ---[ end trace 0000000000000000 ]--- [ 54.588725] ------------[ cut here ]------------ [ 54.589442] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 54.591308] WARNING: CPU: 0 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.592503] Modules linked in: [ 54.592999] CPU: 0 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.594308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.595450] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.596216] 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 [ 54.598693] RSP: 0018:ffff888016a27c00 EFLAGS: 00010282 [ 54.599463] RAX: 0000000000000000 RBX: ffff8880094d9c40 RCX: 0000000000000000 [ 54.600453] RDX: ffff88800fcf9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.601455] RBP: ffff8880094d9c54 R08: 0000000000000001 R09: 0000000000000000 [ 54.602457] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.603455] R13: ffffffff84e223a0 R14: ffff8880094d9c48 R15: ffffffff84da62e0 [ 54.604457] FS: 00005555555b8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.605588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.606430] CR2: 00007f482824c000 CR3: 000000000e6d0000 CR4: 0000000000350ef0 [ 54.607450] Call Trace: [ 54.607822] [ 54.608199] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 54.608890] ipv6_frags_init_net+0x206/0x3c0 [ 54.609621] ops_init+0xbb/0x6b0 [ 54.610155] setup_net+0x3d9/0x990 [ 54.610668] ? down_read_killable+0x1d7/0x4e0 [ 54.611342] ? __pfx_setup_net+0x10/0x10 [ 54.611907] ? copy_net_ns+0x17c/0x770 [ 54.612514] copy_net_ns+0x321/0x770 [ 54.613125] create_new_namespaces+0x3f6/0xb30 [ 54.613788] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.614521] ksys_unshare+0x44d/0x8e0 [ 54.615119] ? __pfx_ksys_unshare+0x10/0x10 [ 54.615745] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.616588] __x64_sys_unshare+0x31/0x40 [ 54.617220] do_syscall_64+0x3f/0x90 [ 54.617759] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.618517] RIP: 0033:0x7fd04d36b0d7 [ 54.619081] 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 [ 54.621540] RSP: 002b:00007ffce3705478 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 54.622606] RAX: ffffffffffffffda RBX: 00007ffce3705ab8 RCX: 00007fd04d36b0d7 [ 54.623616] RDX: 00007fd04d3d541f RSI: 00007ffce3705410 RDI: 0000000040000000 [ 54.624611] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffce3705220 [ 54.625625] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fd04d47dbf0 [ 54.626625] R13: 00007ffce3705550 R14: 0000000000000000 R15: 00000000000000f8 [ 54.627657] [ 54.628036] irq event stamp: 11121 [ 54.628528] hardirqs last enabled at (11131): [] __up_console_sem+0x78/0x80 [ 54.629752] hardirqs last disabled at (11142): [] __up_console_sem+0x5d/0x80 [ 54.630959] softirqs last enabled at (10840): [] irq_exit_rcu+0x93/0xc0 [ 54.632125] softirqs last disabled at (10833): [] irq_exit_rcu+0x93/0xc0 [ 54.633317] ---[ end trace 0000000000000000 ]--- [ 54.635116] ------------[ cut here ]------------ [ 54.635866] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 54.638734] WARNING: CPU: 0 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 54.640143] Modules linked in: [ 54.640679] CPU: 0 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 54.642220] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 54.643563] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 54.644455] 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 [ 54.647325] RSP: 0018:ffff888016a27bf0 EFLAGS: 00010286 [ 54.648241] RAX: 0000000000000000 RBX: ffff8880094d8040 RCX: 0000000000000000 [ 54.649450] RDX: ffff88800fcf9b40 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 54.650616] RBP: ffff8880094d8054 R08: 0000000000000001 R09: 0000000000000000 [ 54.651794] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 54.652771] R13: ffffffff84e223a0 R14: ffff8880094d8048 R15: ffffffff84daf020 [ 54.653748] FS: 00005555555b8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 54.654854] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.655676] CR2: 00007f482824c000 CR3: 000000000e6d0000 CR4: 0000000000350ef0 [ 54.656666] Call Trace: [ 54.657085] [ 54.657424] nf_ct_net_init+0x224/0x3d0 [ 54.658027] ? __pfx_nf_ct_net_init+0x10/0x10 [ 54.658660] ops_init+0xbb/0x6b0 [ 54.659184] setup_net+0x3d9/0x990 [ 54.659692] ? down_read_killable+0x1d7/0x4e0 [ 54.660350] ? __pfx_setup_net+0x10/0x10 [ 54.660949] ? copy_net_ns+0x17c/0x770 [ 54.661518] copy_net_ns+0x321/0x770 [ 54.662086] create_new_namespaces+0x3f6/0xb30 [ 54.662739] unshare_nsproxy_namespaces+0xc1/0x200 [ 54.663465] ksys_unshare+0x44d/0x8e0 [ 54.664056] ? __pfx_ksys_unshare+0x10/0x10 [ 54.664681] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 54.665530] __x64_sys_unshare+0x31/0x40 [ 54.666161] do_syscall_64+0x3f/0x90 [ 54.666700] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 54.667468] RIP: 0033:0x7fd04d36b0d7 [ 54.668027] 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 [ 54.670483] RSP: 002b:00007ffce3705478 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 54.671552] RAX: ffffffffffffffda RBX: 00007ffce3705ab8 RCX: 00007fd04d36b0d7 [ 54.672553] RDX: 00007fd04d3d541f RSI: 00007ffce3705410 RDI: 0000000040000000 [ 54.673613] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffce3705220 [ 54.674623] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fd04d47dbf0 [ 54.675646] R13: 00007ffce3705550 R14: 0000000000000000 R15: 00000000000000f8 [ 54.676682] [ 54.677087] irq event stamp: 12151 [ 54.677584] hardirqs last enabled at (12161): [] __up_console_sem+0x78/0x80 [ 54.678792] hardirqs last disabled at (12172): [] __up_console_sem+0x5d/0x80 [ 54.679998] softirqs last enabled at (12098): [] irq_exit_rcu+0x93/0xc0 [ 54.681202] softirqs last disabled at (12089): [] irq_exit_rcu+0x93/0xc0 [ 54.682283] ---[ end trace 0000000000000000 ]--- executing program [ 56.209328] Bluetooth: hci0: command 0x0409 tx timeout [ 58.257331] Bluetooth: hci0: command 0x041b tx timeout executing program [ 60.305221] Bluetooth: hci0: command 0x040f tx timeout executing program [ 62.352970] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 18:36:29 Registers: info registers vcpu 0 RAX=000000000000006f RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888016a275f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000006f R11=0000000000000001 R12=000000000000006f 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 00005555555b8400 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=00007f482824c000 CR3=000000000e6d0000 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=00000000000390d7 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=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=00007f482815fed0 CR3=000000000e588000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=34386666666666666666203a33315200 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000