[ 34.863457] sshd (209) used greatest stack depth: 24152 bytes left Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:52114' (ECDSA) to the list of known hosts. 2023/05/18 06:33:28 fuzzer started 2023/05/18 06:33:28 dialing manager at localhost:44319 2023/05/18 06:33:28 checking machine... 2023/05/18 06:33:28 checking revisions... syzkaller login: [ 39.414185] kmemleak: Automatic memory scanning thread ended 2023/05/18 06:33:29 testing simple program... [ 39.478886] cgroup: Unknown subsys name 'net' [ 39.588444] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program executing program [ 54.313756] audit: type=1400 audit(1684391623.900:6): avc: denied { execmem } for pid=256 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 55.493974] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.495995] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.497981] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.502395] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.505026] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.506739] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.962479] ------------[ cut here ]------------ [ 55.963171] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.964946] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.966049] Modules linked in: [ 55.966478] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.971295] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.972365] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.973065] 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 [ 55.975297] RSP: 0018:ffff888016757c00 EFLAGS: 00010282 [ 55.976003] RAX: 0000000000000000 RBX: ffff888009695840 RCX: 0000000000000000 [ 55.976940] RDX: ffff88800fba51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.977836] RBP: ffff888009695854 R08: 0000000000000001 R09: 0000000000000000 [ 55.978750] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.979650] R13: ffffffff84e23fe0 R14: ffff888009695848 R15: ffffffff84d74dc0 [ 55.980578] FS: 00005555568c0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 55.981597] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.982315] CR2: 00007fa1171b96f4 CR3: 000000000cbd6000 CR4: 0000000000350ee0 [ 55.983228] Call Trace: [ 55.983589] [ 55.983891] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.984564] ipv4_frags_init_net+0x269/0x440 [ 55.985134] ops_init+0xbb/0x6b0 [ 55.985622] setup_net+0x3d9/0x990 [ 55.986086] ? down_read_killable+0x1d7/0x4e0 [ 55.986699] ? __pfx_setup_net+0x10/0x10 [ 55.987223] ? copy_net_ns+0x17c/0x770 [ 55.987772] copy_net_ns+0x321/0x770 [ 55.988281] create_new_namespaces+0x3f6/0xb30 [ 55.988907] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.989562] ksys_unshare+0x44d/0x8e0 [ 55.990063] ? __pfx_ksys_unshare+0x10/0x10 [ 55.990643] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.991364] __x64_sys_unshare+0x31/0x40 [ 55.991920] do_syscall_64+0x3f/0x90 [ 55.992421] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.993105] RIP: 0033:0x7f319f1fc0d7 [ 55.993613] 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 [ 55.995794] RSP: 002b:00007ffc5d4cec28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 55.996761] RAX: ffffffffffffffda RBX: 00007ffc5d4cf268 RCX: 00007f319f1fc0d7 [ 55.997677] RDX: 00007f319f26641f RSI: 00007ffc5d4cebc0 RDI: 0000000040000000 [ 55.998576] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc5d4ce9d0 [ 55.999453] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f319f30ebf0 [ 56.000371] R13: 00007ffc5d4ced00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.001302] [ 56.001637] irq event stamp: 8383 [ 56.002076] hardirqs last enabled at (8393): [] __up_console_sem+0x78/0x80 [ 56.003158] hardirqs last disabled at (8404): [] __up_console_sem+0x5d/0x80 [ 56.004250] softirqs last enabled at (8066): [] irq_exit_rcu+0x93/0xc0 [ 56.005304] softirqs last disabled at (8057): [] irq_exit_rcu+0x93/0xc0 [ 56.006349] ---[ end trace 0000000000000000 ]--- [ 56.012392] ------------[ cut here ]------------ [ 56.013025] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.014708] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.015781] Modules linked in: [ 56.016203] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.017370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.018409] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.019092] 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 [ 56.021305] RSP: 0018:ffff888016757c00 EFLAGS: 00010282 [ 56.021997] RAX: 0000000000000000 RBX: ffff8880165be440 RCX: 0000000000000000 [ 56.022900] RDX: ffff88800fba51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.023800] RBP: ffff8880165be454 R08: 0000000000000001 R09: 0000000000000000 [ 56.024716] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.025608] R13: ffffffff84e23fe0 R14: ffff8880165be448 R15: ffffffff84da7d60 [ 56.026477] FS: 00005555568c0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.027497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.028253] CR2: 00007fa1171b96f4 CR3: 000000000cbd6000 CR4: 0000000000350ee0 [ 56.029150] Call Trace: [ 56.029478] [ 56.029803] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.030428] ipv6_frags_init_net+0x206/0x3c0 [ 56.031020] ops_init+0xbb/0x6b0 [ 56.031484] setup_net+0x3d9/0x990 [ 56.031974] ? down_read_killable+0x1d7/0x4e0 [ 56.032608] ? __pfx_setup_net+0x10/0x10 [ 56.033129] ? copy_net_ns+0x17c/0x770 [ 56.033706] copy_net_ns+0x321/0x770 [ 56.034189] create_new_namespaces+0x3f6/0xb30 [ 56.034808] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.035424] ksys_unshare+0x44d/0x8e0 [ 56.035946] ? __pfx_ksys_unshare+0x10/0x10 [ 56.036503] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.037248] __x64_sys_unshare+0x31/0x40 [ 56.037795] do_syscall_64+0x3f/0x90 [ 56.038274] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.038956] RIP: 0033:0x7f319f1fc0d7 [ 56.039423] 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 [ 56.041608] RSP: 002b:00007ffc5d4cec28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.042557] RAX: ffffffffffffffda RBX: 00007ffc5d4cf268 RCX: 00007f319f1fc0d7 [ 56.043419] RDX: 00007f319f26641f RSI: 00007ffc5d4cebc0 RDI: 0000000040000000 [ 56.044354] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc5d4ce9d0 [ 56.045442] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f319f30ebf0 [ 56.046552] R13: 00007ffc5d4ced00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.047681] [ 56.048061] irq event stamp: 10283 [ 56.048642] hardirqs last enabled at (10295): [] __up_console_sem+0x78/0x80 [ 56.049964] hardirqs last disabled at (10306): [] __up_console_sem+0x5d/0x80 [ 56.051272] softirqs last enabled at (9832): [] irq_exit_rcu+0x93/0xc0 [ 56.052579] softirqs last disabled at (9827): [] irq_exit_rcu+0x93/0xc0 [ 56.053865] ---[ end trace 0000000000000000 ]--- [ 56.055483] ------------[ cut here ]------------ [ 56.056259] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.058584] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.059876] Modules linked in: [ 56.060391] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.061784] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.063010] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.063827] 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 [ 56.066471] RSP: 0018:ffff888016757bf0 EFLAGS: 00010286 [ 56.067282] RAX: 0000000000000000 RBX: ffff8880165bea40 RCX: 0000000000000000 [ 56.068374] RDX: ffff88800fba51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.069465] RBP: ffff8880165bea54 R08: 0000000000000001 R09: 0000000000000000 [ 56.070557] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.071644] R13: ffffffff84e23fe0 R14: ffff8880165bea48 R15: ffffffff84db0aa0 [ 56.072701] FS: 00005555568c0400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.073856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.074728] CR2: 00007fa1171b96f4 CR3: 000000000cbd6000 CR4: 0000000000350ee0 [ 56.075769] Call Trace: [ 56.076146] [ 56.076488] nf_ct_net_init+0x224/0x3d0 [ 56.077126] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.077817] ops_init+0xbb/0x6b0 [ 56.078327] setup_net+0x3d9/0x990 [ 56.078883] ? down_read_killable+0x1d7/0x4e0 [ 56.079566] ? __pfx_setup_net+0x10/0x10 [ 56.080175] ? copy_net_ns+0x17c/0x770 [ 56.080830] copy_net_ns+0x321/0x770 [ 56.081415] create_new_namespaces+0x3f6/0xb30 [ 56.082149] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.082923] ksys_unshare+0x44d/0x8e0 [ 56.083499] ? __pfx_ksys_unshare+0x10/0x10 [ 56.084200] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.085092] __x64_sys_unshare+0x31/0x40 [ 56.085750] do_syscall_64+0x3f/0x90 [ 56.086319] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.087143] RIP: 0033:0x7f319f1fc0d7 [ 56.087722] 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 [ 56.090328] RSP: 002b:00007ffc5d4cec28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.091450] RAX: ffffffffffffffda RBX: 00007ffc5d4cf268 RCX: 00007f319f1fc0d7 [ 56.092492] RDX: 00007f319f26641f RSI: 00007ffc5d4cebc0 RDI: 0000000040000000 [ 56.093554] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc5d4ce9d0 [ 56.094595] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f319f30ebf0 [ 56.095644] R13: 00007ffc5d4ced00 R14: 0000000000000000 R15: 00000000000000f8 [ 56.096746] [ 56.097101] irq event stamp: 11057 [ 56.097642] hardirqs last enabled at (11069): [] __up_console_sem+0x78/0x80 [ 56.098894] hardirqs last disabled at (11080): [] __up_console_sem+0x5d/0x80 [ 56.100150] softirqs last enabled at (10938): [] irq_exit_rcu+0x93/0xc0 [ 56.101352] softirqs last disabled at (10929): [] irq_exit_rcu+0x93/0xc0 [ 56.102581] ---[ end trace 0000000000000000 ]--- executing program [ 57.575200] Bluetooth: hci0: command 0x0409 tx timeout [ 59.622593] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.670624] Bluetooth: hci0: command 0x040f tx timeout executing program [ 63.719631] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 06:33:42 Registers: info registers vcpu 0 RAX=0000000000022459 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=00007ffa07700d80 CR3=00000000164f0000 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=5035ded23765e0baff4e6d64255c3cf5 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=974a055f600ef0b9000000000013baf8 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=4e39c87c50e4a98b00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880167575f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 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 00005555568c0400 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=00007fa1171b96f4 CR3=000000000cbd6000 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