syzkaller login: [ 75.190271] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:28743' (ECDSA) to the list of known hosts. 2023/05/17 16:32:12 fuzzer started 2023/05/17 16:32:12 dialing manager at localhost:44319 2023/05/17 16:32:12 checking machine... 2023/05/17 16:32:12 checking revisions... [ 76.181533] kmemleak: Automatic memory scanning thread ended 2023/05/17 16:32:12 testing simple program... [ 76.228873] cgroup: Unknown subsys name 'net' [ 76.307002] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 88.807326] audit: type=1400 audit(1684341145.110:6): avc: denied { execmem } for pid=258 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 89.953976] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.956852] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.958203] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.961972] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.964631] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 89.966206] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 90.346276] ------------[ cut here ]------------ [ 90.347121] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 90.349085] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 90.350388] Modules linked in: [ 90.350974] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 90.355930] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 90.356981] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 90.357688] 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 [ 90.359961] RSP: 0018:ffff888016a4fc00 EFLAGS: 00010282 [ 90.360711] RAX: 0000000000000000 RBX: ffff88800d84dc40 RCX: 0000000000000000 [ 90.361635] RDX: ffff8880182a3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 90.362577] RBP: ffff88800d84dc54 R08: 0000000000000001 R09: 0000000000000000 [ 90.363495] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 90.364381] R13: ffffffff84e23fe0 R14: ffff88800d84dc48 R15: ffffffff84d74dc0 [ 90.365314] FS: 0000555556f24400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 90.366351] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.367128] CR2: 00007fd85b8726f4 CR3: 000000000c8e0000 CR4: 0000000000350ee0 [ 90.368057] Call Trace: [ 90.368389] [ 90.368755] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 90.369377] ipv4_frags_init_net+0x269/0x440 [ 90.369993] ops_init+0xbb/0x6b0 [ 90.370481] setup_net+0x3d9/0x990 [ 90.370984] ? down_read_killable+0x1d7/0x4e0 [ 90.371597] ? __pfx_setup_net+0x10/0x10 [ 90.372111] ? copy_net_ns+0x17c/0x770 [ 90.372646] copy_net_ns+0x321/0x770 [ 90.373133] create_new_namespaces+0x3f6/0xb30 [ 90.373753] unshare_nsproxy_namespaces+0xc1/0x200 [ 90.374372] ksys_unshare+0x44d/0x8e0 [ 90.374904] ? __pfx_ksys_unshare+0x10/0x10 [ 90.375480] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 90.376191] __x64_sys_unshare+0x31/0x40 [ 90.376751] do_syscall_64+0x3f/0x90 [ 90.377234] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 90.377909] RIP: 0033:0x7fbc9ee670d7 [ 90.378379] 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 [ 90.380581] RSP: 002b:00007ffe62b4d6a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 90.381527] RAX: ffffffffffffffda RBX: 00007ffe62b4dce8 RCX: 00007fbc9ee670d7 [ 90.382401] RDX: 00007fbc9eed141f RSI: 00007ffe62b4d640 RDI: 0000000040000000 [ 90.383334] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe62b4d450 [ 90.384228] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbc9ef79bf0 [ 90.385123] R13: 00007ffe62b4d780 R14: 0000000000000000 R15: 00000000000000f8 [ 90.386046] [ 90.386348] irq event stamp: 8167 [ 90.386811] hardirqs last enabled at (8179): [] __up_console_sem+0x78/0x80 [ 90.387866] hardirqs last disabled at (8190): [] __up_console_sem+0x5d/0x80 [ 90.388941] softirqs last enabled at (7650): [] irq_exit_rcu+0x93/0xc0 [ 90.389994] softirqs last disabled at (7645): [] irq_exit_rcu+0x93/0xc0 [ 90.391052] ---[ end trace 0000000000000000 ]--- [ 90.397893] ------------[ cut here ]------------ [ 90.398519] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 90.400163] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 90.401230] Modules linked in: [ 90.401683] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 90.402854] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 90.403894] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 90.404591] 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 [ 90.406780] RSP: 0018:ffff888016a4fc00 EFLAGS: 00010282 [ 90.407465] RAX: 0000000000000000 RBX: ffff88800c47b040 RCX: 0000000000000000 [ 90.408326] RDX: ffff8880182a3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 90.409225] RBP: ffff88800c47b054 R08: 0000000000000001 R09: 0000000000000000 [ 90.410119] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 90.411042] R13: ffffffff84e23fe0 R14: ffff88800c47b048 R15: ffffffff84da7d60 [ 90.411941] FS: 0000555556f24400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 90.412945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.413684] CR2: 00007fd85b8726f4 CR3: 000000000c8e0000 CR4: 0000000000350ee0 [ 90.414589] Call Trace: [ 90.414919] [ 90.415216] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 90.415866] ipv6_frags_init_net+0x206/0x3c0 [ 90.416476] ops_init+0xbb/0x6b0 [ 90.416938] setup_net+0x3d9/0x990 [ 90.417408] ? down_read_killable+0x1d7/0x4e0 [ 90.418017] ? __pfx_setup_net+0x10/0x10 [ 90.418586] ? copy_net_ns+0x17c/0x770 [ 90.419109] copy_net_ns+0x321/0x770 [ 90.419645] create_new_namespaces+0x3f6/0xb30 [ 90.420234] unshare_nsproxy_namespaces+0xc1/0x200 [ 90.420890] ksys_unshare+0x44d/0x8e0 [ 90.421388] ? __pfx_ksys_unshare+0x10/0x10 [ 90.421982] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 90.422747] __x64_sys_unshare+0x31/0x40 [ 90.423277] do_syscall_64+0x3f/0x90 [ 90.423790] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 90.424474] RIP: 0033:0x7fbc9ee670d7 [ 90.424944] 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 [ 90.427159] RSP: 002b:00007ffe62b4d6a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 90.428134] RAX: ffffffffffffffda RBX: 00007ffe62b4dce8 RCX: 00007fbc9ee670d7 [ 90.429026] RDX: 00007fbc9eed141f RSI: 00007ffe62b4d640 RDI: 0000000040000000 [ 90.429914] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe62b4d450 [ 90.430825] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbc9ef79bf0 [ 90.431722] R13: 00007ffe62b4d780 R14: 0000000000000000 R15: 00000000000000f8 [ 90.432631] [ 90.432942] irq event stamp: 10921 [ 90.433368] hardirqs last enabled at (10931): [] __up_console_sem+0x78/0x80 [ 90.434457] hardirqs last disabled at (10944): [] __up_console_sem+0x5d/0x80 [ 90.435535] softirqs last enabled at (10428): [] irq_exit_rcu+0x93/0xc0 [ 90.436598] softirqs last disabled at (10423): [] irq_exit_rcu+0x93/0xc0 [ 90.437659] ---[ end trace 0000000000000000 ]--- [ 90.438999] ------------[ cut here ]------------ [ 90.439611] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 90.441535] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 90.442617] Modules linked in: [ 90.443018] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 90.444184] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 90.445206] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 90.445906] 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 [ 90.448212] RSP: 0018:ffff888016a4fbf0 EFLAGS: 00010286 [ 90.448937] RAX: 0000000000000000 RBX: ffff88800c47b640 RCX: 0000000000000000 [ 90.449863] RDX: ffff8880182a3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 90.450825] RBP: ffff88800c47b654 R08: 0000000000000001 R09: 0000000000000000 [ 90.451751] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 90.452690] R13: ffffffff84e23fe0 R14: ffff88800c47b648 R15: ffffffff84db0aa0 [ 90.453617] FS: 0000555556f24400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 90.454643] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.455348] CR2: 00007fd85b8726f4 CR3: 000000000c8e0000 CR4: 0000000000350ee0 [ 90.456250] Call Trace: [ 90.456626] [ 90.456940] nf_ct_net_init+0x224/0x3d0 [ 90.457521] ? __pfx_nf_ct_net_init+0x10/0x10 [ 90.458129] ops_init+0xbb/0x6b0 [ 90.458647] setup_net+0x3d9/0x990 [ 90.459125] ? down_read_killable+0x1d7/0x4e0 [ 90.459748] ? __pfx_setup_net+0x10/0x10 [ 90.460288] ? copy_net_ns+0x17c/0x770 [ 90.460849] copy_net_ns+0x321/0x770 [ 90.461357] create_new_namespaces+0x3f6/0xb30 [ 90.461998] unshare_nsproxy_namespaces+0xc1/0x200 [ 90.462681] ksys_unshare+0x44d/0x8e0 [ 90.463194] ? __pfx_ksys_unshare+0x10/0x10 [ 90.463794] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 90.464573] __x64_sys_unshare+0x31/0x40 [ 90.465118] do_syscall_64+0x3f/0x90 [ 90.465639] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 90.466313] RIP: 0033:0x7fbc9ee670d7 [ 90.466843] 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 [ 90.469141] RSP: 002b:00007ffe62b4d6a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 90.470149] RAX: ffffffffffffffda RBX: 00007ffe62b4dce8 RCX: 00007fbc9ee670d7 [ 90.471090] RDX: 00007fbc9eed141f RSI: 00007ffe62b4d640 RDI: 0000000040000000 [ 90.472026] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe62b4d450 [ 90.472965] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbc9ef79bf0 [ 90.473908] R13: 00007ffe62b4d780 R14: 0000000000000000 R15: 00000000000000f8 [ 90.474904] [ 90.475217] irq event stamp: 11667 [ 90.475729] hardirqs last enabled at (11679): [] __up_console_sem+0x78/0x80 [ 90.476880] hardirqs last disabled at (11690): [] __up_console_sem+0x5d/0x80 [ 90.478024] softirqs last enabled at (11506): [] irq_exit_rcu+0x93/0xc0 [ 90.479171] softirqs last disabled at (11501): [] irq_exit_rcu+0x93/0xc0 [ 90.480290] ---[ end trace 0000000000000000 ]--- executing program [ 92.037023] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 94.084480] Bluetooth: hci0: command 0x041b tx timeout [ 96.132477] Bluetooth: hci0: command 0x040f tx timeout executing program [ 98.180475] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 16:31:53 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000100 RDX=ffffffff8542a780 RSI=ffff88806ce09eb8 RDI=ffff88806ce29380 RBP=ffff88806ce09eb8 RSP=ffff88806ce09e50 R8 =0000000000000007 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=ffff88806ce29380 R13=dffffc0000000000 R14=fffffbfff0a81e40 R15=1ffff1100d9c527a RIP=ffffffff813b5ac2 RFL=00000046 [---Z-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 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=00007f930c163000 CR3=000000000d8ac000 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=2036323a32333a36312037312079614d XMM01=5d3437393035332e30392020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20204c20202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d34 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff888016a4f5f0 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 0000555556f24400 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=00007fd85b8726f4 CR3=000000000c8e0000 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