Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 35.163234] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:34348' (ECDSA) to the list of known hosts. 2023/05/16 21:10:39 fuzzer started 2023/05/16 21:10:40 dialing manager at localhost:35573 2023/05/16 21:10:40 checking machine... 2023/05/16 21:10:40 checking revisions... [ 36.322033] kmemleak: Automatic memory scanning thread ended 2023/05/16 21:10:40 testing simple program... [ 36.391068] cgroup: Unknown subsys name 'net' [ 36.471038] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.512918] audit: type=1400 audit(1684271452.649:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 49.660210] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.663560] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.664956] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.667886] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.669377] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.670769] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.051115] ------------[ cut here ]------------ [ 50.051911] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.054141] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.055226] Modules linked in: [ 50.055667] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.060947] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.061993] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.062697] 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 [ 50.064902] RSP: 0018:ffff8880147b7c00 EFLAGS: 00010282 [ 50.065595] RAX: 0000000000000000 RBX: ffff888016462840 RCX: 0000000000000000 [ 50.066473] RDX: ffff888019ceb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.067379] RBP: ffff888016462854 R08: 0000000000000001 R09: 0000000000000000 [ 50.068282] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.069177] R13: ffffffff84e223a0 R14: ffff888016462848 R15: ffffffff84d73340 [ 50.070093] FS: 0000555556afa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.071110] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.071860] CR2: 00007f8b3f7636f4 CR3: 00000000201c4000 CR4: 0000000000350ef0 [ 50.072752] Call Trace: [ 50.073082] [ 50.073382] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.074053] ipv4_frags_init_net+0x269/0x440 [ 50.074647] ops_init+0xbb/0x6b0 [ 50.075094] setup_net+0x3d9/0x990 [ 50.075576] ? down_read_killable+0x1d7/0x4e0 [ 50.076147] ? __pfx_setup_net+0x10/0x10 [ 50.076685] ? copy_net_ns+0x17c/0x770 [ 50.077192] copy_net_ns+0x321/0x770 [ 50.077703] create_new_namespaces+0x3f6/0xb30 [ 50.078296] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.078940] ksys_unshare+0x44d/0x8e0 [ 50.079435] ? __pfx_ksys_unshare+0x10/0x10 [ 50.080010] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.080767] __x64_sys_unshare+0x31/0x40 [ 50.081286] do_syscall_64+0x3f/0x90 [ 50.081792] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.082461] RIP: 0033:0x7fbe785220d7 [ 50.082961] 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 [ 50.085141] RSP: 002b:00007ffeca241af8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.086120] RAX: ffffffffffffffda RBX: 00007ffeca242138 RCX: 00007fbe785220d7 [ 50.087015] RDX: 00007fbe7858c41f RSI: 00007ffeca241a90 RDI: 0000000040000000 [ 50.087902] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeca2418a0 [ 50.088784] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbe78634bf0 [ 50.089678] R13: 00007ffeca241bd0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.090607] [ 50.090913] irq event stamp: 8677 [ 50.091333] hardirqs last enabled at (8687): [] __up_console_sem+0x78/0x80 [ 50.092395] hardirqs last disabled at (8698): [] __up_console_sem+0x5d/0x80 [ 50.093456] softirqs last enabled at (8584): [] irq_exit_rcu+0x93/0xc0 [ 50.094535] softirqs last disabled at (8579): [] irq_exit_rcu+0x93/0xc0 [ 50.095569] ---[ end trace 0000000000000000 ]--- [ 50.101735] ------------[ cut here ]------------ [ 50.102365] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.104301] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.105383] Modules linked in: [ 50.105835] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.107005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.108044] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.108731] 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 [ 50.110926] RSP: 0018:ffff8880147b7c00 EFLAGS: 00010282 [ 50.111622] RAX: 0000000000000000 RBX: ffff88800da3d040 RCX: 0000000000000000 [ 50.112541] RDX: ffff888019ceb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.113447] RBP: ffff88800da3d054 R08: 0000000000000001 R09: 0000000000000000 [ 50.114415] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.115349] R13: ffffffff84e223a0 R14: ffff88800da3d048 R15: ffffffff84da62e0 [ 50.116285] FS: 0000555556afa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.117356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.118145] CR2: 00007f8b3f7636f4 CR3: 00000000201c4000 CR4: 0000000000350ef0 [ 50.119084] Call Trace: [ 50.119433] [ 50.119772] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.120418] ipv6_frags_init_net+0x206/0x3c0 [ 50.121032] ops_init+0xbb/0x6b0 [ 50.121527] setup_net+0x3d9/0x990 [ 50.122037] ? down_read_killable+0x1d7/0x4e0 [ 50.122665] ? __pfx_setup_net+0x10/0x10 [ 50.123206] ? copy_net_ns+0x17c/0x770 [ 50.123776] copy_net_ns+0x321/0x770 [ 50.124292] create_new_namespaces+0x3f6/0xb30 [ 50.124940] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.125627] ksys_unshare+0x44d/0x8e0 [ 50.126166] ? __pfx_ksys_unshare+0x10/0x10 [ 50.126778] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.127559] __x64_sys_unshare+0x31/0x40 [ 50.128108] do_syscall_64+0x3f/0x90 [ 50.128636] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.129313] RIP: 0033:0x7fbe785220d7 [ 50.129857] 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 [ 50.132168] RSP: 002b:00007ffeca241af8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.133177] RAX: ffffffffffffffda RBX: 00007ffeca242138 RCX: 00007fbe785220d7 [ 50.134137] RDX: 00007fbe7858c41f RSI: 00007ffeca241a90 RDI: 0000000040000000 [ 50.135080] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeca2418a0 [ 50.136014] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbe78634bf0 [ 50.137079] R13: 00007ffeca241bd0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.138077] [ 50.138399] irq event stamp: 10797 [ 50.138882] hardirqs last enabled at (10809): [] __up_console_sem+0x78/0x80 [ 50.140008] hardirqs last disabled at (10820): [] __up_console_sem+0x5d/0x80 [ 50.141137] softirqs last enabled at (10768): [] irq_exit_rcu+0x93/0xc0 [ 50.142275] softirqs last disabled at (10761): [] irq_exit_rcu+0x93/0xc0 [ 50.143393] ---[ end trace 0000000000000000 ]--- [ 50.144882] ------------[ cut here ]------------ [ 50.145552] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.147665] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.148795] Modules linked in: [ 50.149221] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.150460] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.151539] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.152220] 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 [ 50.154580] RSP: 0018:ffff8880147b7bf0 EFLAGS: 00010286 [ 50.155270] RAX: 0000000000000000 RBX: ffff88800da3de40 RCX: 0000000000000000 [ 50.156216] RDX: ffff888019ceb680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.157157] RBP: ffff88800da3de54 R08: 0000000000000001 R09: 0000000000000000 [ 50.158111] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.159042] R13: ffffffff84e223a0 R14: ffff88800da3de48 R15: ffffffff84daf020 [ 50.159986] FS: 0000555556afa400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.161041] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.161852] CR2: 00007f8b3f7636f4 CR3: 00000000201c4000 CR4: 0000000000350ef0 [ 50.162810] Call Trace: [ 50.163147] [ 50.163462] nf_ct_net_init+0x224/0x3d0 [ 50.164044] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.164679] ops_init+0xbb/0x6b0 [ 50.165143] setup_net+0x3d9/0x990 [ 50.165650] ? down_read_killable+0x1d7/0x4e0 [ 50.166229] ? __pfx_setup_net+0x10/0x10 [ 50.166772] ? copy_net_ns+0x17c/0x770 [ 50.167280] copy_net_ns+0x321/0x770 [ 50.167787] create_new_namespaces+0x3f6/0xb30 [ 50.168375] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.169024] ksys_unshare+0x44d/0x8e0 [ 50.169549] ? __pfx_ksys_unshare+0x10/0x10 [ 50.170131] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.170874] __x64_sys_unshare+0x31/0x40 [ 50.171392] do_syscall_64+0x3f/0x90 [ 50.171917] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.172593] RIP: 0033:0x7fbe785220d7 [ 50.173059] 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 [ 50.175236] RSP: 002b:00007ffeca241af8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.176187] RAX: ffffffffffffffda RBX: 00007ffeca242138 RCX: 00007fbe785220d7 [ 50.177083] RDX: 00007fbe7858c41f RSI: 00007ffeca241a90 RDI: 0000000040000000 [ 50.177996] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffeca2418a0 [ 50.178900] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbe78634bf0 [ 50.179806] R13: 00007ffeca241bd0 R14: 0000000000000000 R15: 00000000000000f8 [ 50.180721] [ 50.181025] irq event stamp: 11561 [ 50.181464] hardirqs last enabled at (11571): [] __up_console_sem+0x78/0x80 [ 50.182605] hardirqs last disabled at (11584): [] __up_console_sem+0x5d/0x80 [ 50.183703] softirqs last enabled at (11134): [] irq_exit_rcu+0x93/0xc0 [ 50.184767] softirqs last disabled at (11125): [] irq_exit_rcu+0x93/0xc0 [ 50.185883] ---[ end trace 0000000000000000 ]--- executing program [ 51.737199] Bluetooth: hci0: command 0x0409 tx timeout [ 53.784571] Bluetooth: hci0: command 0x041b tx timeout executing program [ 55.832560] Bluetooth: hci0: command 0x040f tx timeout executing program [ 57.880722] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 21:10:53 Registers: info registers vcpu 0 RAX=000000000000002e RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880147b75f0 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002e R11=0000000000000001 R12=000000000000002e 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 0000555556afa400 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=00007f8b3f7636f4 CR3=00000000201c4000 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=000000000002d7e7 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=00007f457a0d2200 CR3=000000001668a000 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=52f13c014cc95d8c3947d69a68b4e529 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=09542bc88f10a001000000000013bde0 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=97be52186c590b9f00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000