syzkaller login: [ 34.578953] sshd (219) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:37338' (ECDSA) to the list of known hosts. 2023/05/18 07:15:14 fuzzer started 2023/05/18 07:15:14 dialing manager at localhost:44319 2023/05/18 07:15:14 checking machine... 2023/05/18 07:15:14 checking revisions... [ 36.769652] kmemleak: Automatic memory scanning thread ended 2023/05/18 07:15:14 testing simple program... [ 36.815051] cgroup: Unknown subsys name 'net' [ 36.894560] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.272042] audit: type=1400 audit(1684394127.223:6): avc: denied { execmem } for pid=260 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.367527] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.369556] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.371308] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.374264] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.376005] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.377122] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.759708] ------------[ cut here ]------------ [ 50.760328] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.761933] WARNING: CPU: 1 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.762933] Modules linked in: [ 50.763348] CPU: 1 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.765356] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.767747] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.768735] 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 [ 50.770837] RSP: 0018:ffff888006987c00 EFLAGS: 00010282 [ 50.771565] RAX: 0000000000000000 RBX: ffff88800f0c2040 RCX: 0000000000000000 [ 50.772563] RDX: ffff88801cdf1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.773566] RBP: ffff88800f0c2054 R08: 0000000000000001 R09: 0000000000000000 [ 50.774575] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.775570] R13: ffffffff84e23fe0 R14: ffff88800f0c2048 R15: ffffffff84d74dc0 [ 50.776584] FS: 0000555555a2f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.777743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.778561] CR2: 00007f84def636f4 CR3: 00000000146c4000 CR4: 0000000000350ee0 [ 50.779605] Call Trace: [ 50.780012] [ 50.780360] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.781119] ipv4_frags_init_net+0x269/0x440 [ 50.781812] ops_init+0xbb/0x6b0 [ 50.782335] setup_net+0x3d9/0x990 [ 50.782903] ? down_read_killable+0x1d7/0x4e0 [ 50.783570] ? __pfx_setup_net+0x10/0x10 [ 50.784202] ? copy_net_ns+0x17c/0x770 [ 50.784832] copy_net_ns+0x321/0x770 [ 50.785419] create_new_namespaces+0x3f6/0xb30 [ 50.786146] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.786901] ksys_unshare+0x44d/0x8e0 [ 50.787476] ? __pfx_ksys_unshare+0x10/0x10 [ 50.788157] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.789024] __x64_sys_unshare+0x31/0x40 [ 50.789670] do_syscall_64+0x3f/0x90 [ 50.790233] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.791032] RIP: 0033:0x7f40072e20d7 [ 50.791578] 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 [ 50.794154] RSP: 002b:00007ffd79192668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.795269] RAX: ffffffffffffffda RBX: 00007ffd79192ca8 RCX: 00007f40072e20d7 [ 50.796304] RDX: 00007f400734c41f RSI: 00007ffd79192600 RDI: 0000000040000000 [ 50.797367] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd79192410 [ 50.798412] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f40073f4bf0 [ 50.799453] R13: 00007ffd79192740 R14: 0000000000000000 R15: 00000000000000f8 [ 50.800517] [ 50.800901] irq event stamp: 8183 [ 50.801414] hardirqs last enabled at (8193): [] __up_console_sem+0x78/0x80 [ 50.802670] hardirqs last disabled at (8204): [] __up_console_sem+0x5d/0x80 [ 50.803917] softirqs last enabled at (7728): [] irq_exit_rcu+0x93/0xc0 [ 50.805147] softirqs last disabled at (7677): [] irq_exit_rcu+0x93/0xc0 [ 50.806360] ---[ end trace 0000000000000000 ]--- [ 50.811919] ------------[ cut here ]------------ [ 50.812609] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.814534] WARNING: CPU: 1 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.815780] Modules linked in: [ 50.816256] CPU: 1 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.817661] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.818854] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.819609] 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 [ 50.822209] RSP: 0018:ffff888006987c00 EFLAGS: 00010282 [ 50.823016] RAX: 0000000000000000 RBX: ffff88800edfc040 RCX: 0000000000000000 [ 50.824058] RDX: ffff88801cdf1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.825126] RBP: ffff88800edfc054 R08: 0000000000000001 R09: 0000000000000000 [ 50.826175] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.827219] R13: ffffffff84e23fe0 R14: ffff88800edfc048 R15: ffffffff84da7d60 [ 50.828261] FS: 0000555555a2f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.829441] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.830310] CR2: 00007f84def636f4 CR3: 00000000146c4000 CR4: 0000000000350ee0 [ 50.831357] Call Trace: [ 50.831773] [ 50.832121] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.832872] ipv6_frags_init_net+0x206/0x3c0 [ 50.833549] ops_init+0xbb/0x6b0 [ 50.834105] setup_net+0x3d9/0x990 [ 50.834673] ? down_read_killable+0x1d7/0x4e0 [ 50.835338] ? __pfx_setup_net+0x10/0x10 [ 50.835976] ? copy_net_ns+0x17c/0x770 [ 50.836572] copy_net_ns+0x321/0x770 [ 50.837186] create_new_namespaces+0x3f6/0xb30 [ 50.837913] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.838668] ksys_unshare+0x44d/0x8e0 [ 50.839239] ? __pfx_ksys_unshare+0x10/0x10 [ 50.839916] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.840783] __x64_sys_unshare+0x31/0x40 [ 50.841397] do_syscall_64+0x3f/0x90 [ 50.841995] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.842786] RIP: 0033:0x7f40072e20d7 [ 50.843329] 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 [ 50.845900] RSP: 002b:00007ffd79192668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.847016] RAX: ffffffffffffffda RBX: 00007ffd79192ca8 RCX: 00007f40072e20d7 [ 50.848062] RDX: 00007f400734c41f RSI: 00007ffd79192600 RDI: 0000000040000000 [ 50.849104] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd79192410 [ 50.850144] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f40073f4bf0 [ 50.851183] R13: 00007ffd79192740 R14: 0000000000000000 R15: 00000000000000f8 [ 50.852249] [ 50.852599] irq event stamp: 9807 [ 50.853148] hardirqs last enabled at (9819): [] __up_console_sem+0x78/0x80 [ 50.854386] hardirqs last disabled at (9830): [] __up_console_sem+0x5d/0x80 [ 50.855589] softirqs last enabled at (9374): [] irq_exit_rcu+0x93/0xc0 [ 50.856760] softirqs last disabled at (9365): [] irq_exit_rcu+0x93/0xc0 [ 50.857916] ---[ end trace 0000000000000000 ]--- [ 50.859432] ------------[ cut here ]------------ [ 50.860136] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.862235] WARNING: CPU: 1 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.863435] Modules linked in: [ 50.863918] CPU: 1 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 50.865232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.866360] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.867109] 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 [ 50.869563] RSP: 0018:ffff888006987bf0 EFLAGS: 00010286 [ 50.870317] RAX: 0000000000000000 RBX: ffff88800edfd440 RCX: 0000000000000000 [ 50.871325] RDX: ffff88801cdf1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 50.872343] RBP: ffff88800edfd454 R08: 0000000000000001 R09: 0000000000000000 [ 50.873379] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.874379] R13: ffffffff84e23fe0 R14: ffff88800edfd448 R15: ffffffff84db0aa0 [ 50.875383] FS: 0000555555a2f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.876506] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.877336] CR2: 00007f84def636f4 CR3: 00000000146c4000 CR4: 0000000000350ee0 [ 50.878325] Call Trace: [ 50.878725] [ 50.879066] nf_ct_net_init+0x224/0x3d0 [ 50.879665] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.880302] ops_init+0xbb/0x6b0 [ 50.880847] setup_net+0x3d9/0x990 [ 50.881399] ? down_read_killable+0x1d7/0x4e0 [ 50.882078] ? __pfx_setup_net+0x10/0x10 [ 50.882698] ? copy_net_ns+0x17c/0x770 [ 50.883265] copy_net_ns+0x321/0x770 [ 50.883851] create_new_namespaces+0x3f6/0xb30 [ 50.884499] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.885253] ksys_unshare+0x44d/0x8e0 [ 50.885824] ? __pfx_ksys_unshare+0x10/0x10 [ 50.886443] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.887286] __x64_sys_unshare+0x31/0x40 [ 50.887895] do_syscall_64+0x3f/0x90 [ 50.888427] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.889205] RIP: 0033:0x7f40072e20d7 [ 50.889770] 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 [ 50.892213] RSP: 002b:00007ffd79192668 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.893282] RAX: ffffffffffffffda RBX: 00007ffd79192ca8 RCX: 00007f40072e20d7 [ 50.894306] RDX: 00007f400734c41f RSI: 00007ffd79192600 RDI: 0000000040000000 [ 50.895291] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd79192410 [ 50.896307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f40073f4bf0 [ 50.897317] R13: 00007ffd79192740 R14: 0000000000000000 R15: 00000000000000f8 [ 50.898356] [ 50.898735] irq event stamp: 10653 [ 50.899228] hardirqs last enabled at (10663): [] __up_console_sem+0x78/0x80 [ 50.900448] hardirqs last disabled at (10674): [] __up_console_sem+0x5d/0x80 [ 50.901677] softirqs last enabled at (10388): [] irq_exit_rcu+0x93/0xc0 [ 50.902857] softirqs last disabled at (10383): [] irq_exit_rcu+0x93/0xc0 [ 50.904008] ---[ end trace 0000000000000000 ]--- executing program [ 52.389341] Bluetooth: hci0: command 0x0409 tx timeout [ 54.437304] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.484692] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.533711] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 07:15:28 Registers: info registers vcpu 0 RAX=0000564e03c45aa0 RBX=0000564e03c39e00 RCX=0000564e02637108 RDX=0000000000000fa4 RSI=0000564e02657a50 RDI=0000564e03c45790 RBP=00007f47b8005530 RSP=00007f47bf2aa930 R8 =00007f47b8005738 R9 =0000000000000000 R10=0000000000000009 R11=0000000000000286 R12=0000000000000001 R13=0000564e03c45790 R14=00007f47b8005530 R15=0000000000000000 RIP=0000564e0260834f RFL=00000246 [---Z-P-] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA] SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007f47bf2ab700 00000000 00000000 GS =0000 0000000000000000 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=00007fd3b84982d0 CR3=000000000d292000 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=2d205d3830373935372e30352020205b XMM01=656820747563205b2d2d2d2d2d2d2d2d XMM02=6c6c694b20465220657661532f64616f XMM03=65747379732072656c6c616b7a797320 XMM04=2037323a35313a37302038312079614d XMM05=65636f72703d7373616c63742030733a XMM06=733a755f6d65747379733d747865746e XMM07=725f6d65747379733a755f6d65747379 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000005 RBX=00000000000003f9 RCX=0000000000000000 RDX=00000000000003f9 RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880069875e8 R8 =0000000000000001 R9 =ffffed1000d30eae R10=0000000000000003 R11=0000000000000001 R12=0000000000000039 R13=ffffffff87f2dbc0 R14=ffffffff87f2dc10 R15=ffffffff87f2de78 RIP=ffffffff82507f45 RFL=00000006 [-----P-] 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 0000555555a2f400 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=00007f84def636f4 CR3=00000000146c4000 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