syzkaller login: [ 49.173319] sshd (218) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:43530' (ECDSA) to the list of known hosts. 2023/05/16 19:42:24 fuzzer started 2023/05/16 19:42:24 dialing manager at localhost:35573 2023/05/16 19:42:24 checking machine... 2023/05/16 19:42:24 checking revisions... [ 51.200542] kmemleak: Automatic memory scanning thread ended 2023/05/16 19:42:24 testing simple program... [ 51.272370] cgroup: Unknown subsys name 'net' [ 51.360863] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 64.008107] audit: type=1400 audit(1684266157.321:6): 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 [ 65.128680] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 65.131250] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 65.138655] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 65.142287] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 65.144850] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 65.145998] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 65.523179] ------------[ cut here ]------------ [ 65.524081] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 65.526538] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.527909] Modules linked in: [ 65.528407] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.529873] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.531036] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.532881] 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 [ 65.536652] RSP: 0018:ffff88801e817c00 EFLAGS: 00010282 [ 65.537379] RAX: 0000000000000000 RBX: ffff88800c5d3440 RCX: 0000000000000000 [ 65.538232] RDX: ffff88800fe0b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.539094] RBP: ffff88800c5d3454 R08: 0000000000000001 R09: 0000000000000000 [ 65.540005] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 65.540956] R13: ffffffff84e223a0 R14: ffff88800c5d3448 R15: ffffffff84d73340 [ 65.542007] FS: 0000555556241400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.543131] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.543968] CR2: 00007f053d9086f4 CR3: 000000001a5c2000 CR4: 0000000000350ef0 [ 65.544925] Call Trace: [ 65.545286] [ 65.545687] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 65.546359] ipv4_frags_init_net+0x269/0x440 [ 65.546975] ops_init+0xbb/0x6b0 [ 65.547414] setup_net+0x3d9/0x990 [ 65.547897] ? down_read_killable+0x1d7/0x4e0 [ 65.548494] ? __pfx_setup_net+0x10/0x10 [ 65.548998] ? copy_net_ns+0x17c/0x770 [ 65.549527] copy_net_ns+0x321/0x770 [ 65.550004] create_new_namespaces+0x3f6/0xb30 [ 65.550618] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.551250] ksys_unshare+0x44d/0x8e0 [ 65.551766] ? __pfx_ksys_unshare+0x10/0x10 [ 65.552316] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.553059] __x64_sys_unshare+0x31/0x40 [ 65.553606] do_syscall_64+0x3f/0x90 [ 65.554082] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.554775] RIP: 0033:0x7f41d60180d7 [ 65.555243] 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 [ 65.557457] RSP: 002b:00007ffccba3c348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.558383] RAX: ffffffffffffffda RBX: 00007ffccba3c988 RCX: 00007f41d60180d7 [ 65.559301] RDX: 00007f41d608241f RSI: 00007ffccba3c2e0 RDI: 0000000040000000 [ 65.560196] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccba3c0f0 [ 65.561074] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f41d612abf0 [ 65.561971] R13: 00007ffccba3c420 R14: 0000000000000000 R15: 00000000000000f8 [ 65.562893] [ 65.563192] irq event stamp: 8109 [ 65.563643] hardirqs last enabled at (8121): [] __up_console_sem+0x78/0x80 [ 65.564686] hardirqs last disabled at (8132): [] __up_console_sem+0x5d/0x80 [ 65.565743] softirqs last enabled at (8016): [] irq_exit_rcu+0x93/0xc0 [ 65.566787] softirqs last disabled at (8011): [] irq_exit_rcu+0x93/0xc0 [ 65.567806] ---[ end trace 0000000000000000 ]--- [ 65.573905] ------------[ cut here ]------------ [ 65.574513] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 65.576146] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.577200] Modules linked in: [ 65.577638] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.578815] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.579829] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.580497] 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 [ 65.582638] RSP: 0018:ffff88801e817c00 EFLAGS: 00010282 [ 65.583285] RAX: 0000000000000000 RBX: ffff88800f180e40 RCX: 0000000000000000 [ 65.584172] RDX: ffff88800fe0b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.585058] RBP: ffff88800f180e54 R08: 0000000000000001 R09: 0000000000000000 [ 65.585944] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 65.586842] R13: ffffffff84e223a0 R14: ffff88800f180e48 R15: ffffffff84da62e0 [ 65.587732] FS: 0000555556241400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.588717] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.589415] CR2: 00007f053d9086f4 CR3: 000000001a5c2000 CR4: 0000000000350ef0 [ 65.590294] Call Trace: [ 65.590654] [ 65.590979] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 65.591620] ipv6_frags_init_net+0x206/0x3c0 [ 65.592170] ops_init+0xbb/0x6b0 [ 65.592648] setup_net+0x3d9/0x990 [ 65.593095] ? down_read_killable+0x1d7/0x4e0 [ 65.593681] ? __pfx_setup_net+0x10/0x10 [ 65.594188] ? copy_net_ns+0x17c/0x770 [ 65.594739] copy_net_ns+0x321/0x770 [ 65.595223] create_new_namespaces+0x3f6/0xb30 [ 65.595832] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.596475] ksys_unshare+0x44d/0x8e0 [ 65.596967] ? __pfx_ksys_unshare+0x10/0x10 [ 65.597545] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.598245] __x64_sys_unshare+0x31/0x40 [ 65.598818] do_syscall_64+0x3f/0x90 [ 65.599287] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.599951] RIP: 0033:0x7f41d60180d7 [ 65.600411] 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 [ 65.602568] RSP: 002b:00007ffccba3c348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.603515] RAX: ffffffffffffffda RBX: 00007ffccba3c988 RCX: 00007f41d60180d7 [ 65.604362] RDX: 00007f41d608241f RSI: 00007ffccba3c2e0 RDI: 0000000040000000 [ 65.605247] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccba3c0f0 [ 65.606129] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f41d612abf0 [ 65.607020] R13: 00007ffccba3c420 R14: 0000000000000000 R15: 00000000000000f8 [ 65.607926] [ 65.608224] irq event stamp: 10117 [ 65.608696] hardirqs last enabled at (10129): [] __up_console_sem+0x78/0x80 [ 65.609758] hardirqs last disabled at (10140): [] __up_console_sem+0x5d/0x80 [ 65.610850] softirqs last enabled at (9482): [] irq_exit_rcu+0x93/0xc0 [ 65.611862] softirqs last disabled at (9477): [] irq_exit_rcu+0x93/0xc0 [ 65.612889] ---[ end trace 0000000000000000 ]--- [ 65.614245] ------------[ cut here ]------------ [ 65.614893] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 65.616857] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 65.617903] Modules linked in: [ 65.618309] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 65.619484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 65.620502] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 65.621140] 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 [ 65.623322] RSP: 0018:ffff88801e817bf0 EFLAGS: 00010286 [ 65.623996] RAX: 0000000000000000 RBX: ffff888016452a40 RCX: 0000000000000000 [ 65.624872] RDX: ffff88800fe0b680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 65.625741] RBP: ffff888016452a54 R08: 0000000000000001 R09: 0000000000000000 [ 65.626618] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 65.627522] R13: ffffffff84e223a0 R14: ffff888016452a48 R15: ffffffff84daf020 [ 65.628369] FS: 0000555556241400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 65.629355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.630080] CR2: 00007f053d9086f4 CR3: 000000001a5c2000 CR4: 0000000000350ef0 [ 65.630984] Call Trace: [ 65.631309] [ 65.631633] nf_ct_net_init+0x224/0x3d0 [ 65.632144] ? __pfx_nf_ct_net_init+0x10/0x10 [ 65.632745] ops_init+0xbb/0x6b0 [ 65.633186] setup_net+0x3d9/0x990 [ 65.633663] ? down_read_killable+0x1d7/0x4e0 [ 65.634224] ? __pfx_setup_net+0x10/0x10 [ 65.634764] ? copy_net_ns+0x17c/0x770 [ 65.635268] copy_net_ns+0x321/0x770 [ 65.635780] create_new_namespaces+0x3f6/0xb30 [ 65.636364] unshare_nsproxy_namespaces+0xc1/0x200 [ 65.637008] ksys_unshare+0x44d/0x8e0 [ 65.637526] ? __pfx_ksys_unshare+0x10/0x10 [ 65.638067] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 65.638822] __x64_sys_unshare+0x31/0x40 [ 65.639339] do_syscall_64+0x3f/0x90 [ 65.639840] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 65.640506] RIP: 0033:0x7f41d60180d7 [ 65.640967] 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 [ 65.643129] RSP: 002b:00007ffccba3c348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 65.644073] RAX: ffffffffffffffda RBX: 00007ffccba3c988 RCX: 00007f41d60180d7 [ 65.644956] RDX: 00007f41d608241f RSI: 00007ffccba3c2e0 RDI: 0000000040000000 [ 65.645833] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffccba3c0f0 [ 65.646782] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f41d612abf0 [ 65.647670] R13: 00007ffccba3c420 R14: 0000000000000000 R15: 00000000000000f8 [ 65.648579] [ 65.648873] irq event stamp: 10933 [ 65.649301] hardirqs last enabled at (10943): [] __up_console_sem+0x78/0x80 [ 65.650353] hardirqs last disabled at (10954): [] __up_console_sem+0x5d/0x80 [ 65.651418] softirqs last enabled at (10894): [] irq_exit_rcu+0x93/0xc0 [ 65.652469] softirqs last disabled at (10883): [] irq_exit_rcu+0x93/0xc0 [ 65.653514] ---[ end trace 0000000000000000 ]--- executing program [ 67.207066] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 69.255497] Bluetooth: hci0: command 0x041b tx timeout [ 71.302572] Bluetooth: hci0: command 0x040f tx timeout executing program [ 73.350524] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 19:42:26 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801e817578 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556241400 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=00007f053d9086f4 CR3=000000001a5c2000 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=0000000000051a3b 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=00000202 [-------] 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=00007f693154c000 CR3=0000000016508000 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=13ab5b5d0c74fd98894da5ac5cb1d36d XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=41dfec782a4acc6e00000000001113e0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=9d3c9bc76f17920d00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000