syzkaller login: [ 37.971563] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:38637' (ECDSA) to the list of known hosts. 2023/05/16 11:52:41 fuzzer started 2023/05/16 11:52:41 dialing manager at localhost:35573 2023/05/16 11:52:41 checking machine... 2023/05/16 11:52:41 checking revisions... [ 39.183594] kmemleak: Automatic memory scanning thread ended 2023/05/16 11:52:42 testing simple program... [ 39.246317] cgroup: Unknown subsys name 'net' [ 39.326919] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 51.688409] audit: type=1400 audit(1684237974.592:6): 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 [ 52.863777] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.866045] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.867595] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.870057] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.871527] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.872717] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.262690] ------------[ cut here ]------------ [ 53.263445] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 53.265495] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.266554] Modules linked in: [ 53.266986] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.271718] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.272762] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.273452] 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 [ 53.275639] RSP: 0018:ffff888020617c00 EFLAGS: 00010282 [ 53.276326] RAX: 0000000000000000 RBX: ffff88800ec60440 RCX: 0000000000000000 [ 53.277236] RDX: ffff88801ca53680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.278136] RBP: ffff88800ec60454 R08: 0000000000000001 R09: 0000000000000000 [ 53.279078] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 53.279986] R13: ffffffff84e223a0 R14: ffff88800ec60448 R15: ffffffff84d73340 [ 53.280892] FS: 0000555556099400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.281906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.282623] CR2: 00007fc366057ba0 CR3: 000000000c63e000 CR4: 0000000000350ef0 [ 53.283520] Call Trace: [ 53.283882] [ 53.284187] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 53.284809] ipv4_frags_init_net+0x269/0x440 [ 53.285435] ops_init+0xbb/0x6b0 [ 53.285920] setup_net+0x3d9/0x990 [ 53.286384] ? down_read_killable+0x1d7/0x4e0 [ 53.286982] ? __pfx_setup_net+0x10/0x10 [ 53.287499] ? copy_net_ns+0x17c/0x770 [ 53.288040] copy_net_ns+0x321/0x770 [ 53.288528] create_new_namespaces+0x3f6/0xb30 [ 53.289149] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.289774] ksys_unshare+0x44d/0x8e0 [ 53.290303] ? __pfx_ksys_unshare+0x10/0x10 [ 53.290877] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.291601] __x64_sys_unshare+0x31/0x40 [ 53.292146] do_syscall_64+0x3f/0x90 [ 53.292627] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.293323] RIP: 0033:0x7fac4282c0d7 [ 53.293789] 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 [ 53.295952] RSP: 002b:00007ffd4cfbcb68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.296903] RAX: ffffffffffffffda RBX: 00007ffd4cfbd1a8 RCX: 00007fac4282c0d7 [ 53.297775] RDX: 00007fac4289641f RSI: 00007ffd4cfbcb00 RDI: 0000000040000000 [ 53.298671] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd4cfbc910 [ 53.299571] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fac4293ebf0 [ 53.300475] R13: 00007ffd4cfbcc40 R14: 0000000000000000 R15: 00000000000000f8 [ 53.301401] [ 53.301702] irq event stamp: 10281 [ 53.302166] hardirqs last enabled at (10293): [] __up_console_sem+0x78/0x80 [ 53.303253] hardirqs last disabled at (10304): [] __up_console_sem+0x5d/0x80 [ 53.304336] softirqs last enabled at (9910): [] irq_exit_rcu+0x93/0xc0 [ 53.305383] softirqs last disabled at (9897): [] irq_exit_rcu+0x93/0xc0 [ 53.306420] ---[ end trace 0000000000000000 ]--- [ 53.311814] ------------[ cut here ]------------ [ 53.312435] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 53.314151] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.315267] Modules linked in: [ 53.315673] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.316858] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.317903] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.318554] 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 [ 53.320728] RSP: 0018:ffff888020617c00 EFLAGS: 00010282 [ 53.321417] RAX: 0000000000000000 RBX: ffff88800ddaf840 RCX: 0000000000000000 [ 53.322314] RDX: ffff88801ca53680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.323205] RBP: ffff88800ddaf854 R08: 0000000000000001 R09: 0000000000000000 [ 53.324108] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.325006] R13: ffffffff84e223a0 R14: ffff88800ddaf848 R15: ffffffff84da62e0 [ 53.325932] FS: 0000555556099400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.326938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.327653] CR2: 00007fc366057ba0 CR3: 000000000c63e000 CR4: 0000000000350ef0 [ 53.328555] Call Trace: [ 53.328910] [ 53.329224] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 53.329833] ipv6_frags_init_net+0x206/0x3c0 [ 53.330417] ops_init+0xbb/0x6b0 [ 53.330889] setup_net+0x3d9/0x990 [ 53.331347] ? down_read_killable+0x1d7/0x4e0 [ 53.331950] ? __pfx_setup_net+0x10/0x10 [ 53.332467] ? copy_net_ns+0x17c/0x770 [ 53.332996] copy_net_ns+0x321/0x770 [ 53.333515] create_new_namespaces+0x3f6/0xb30 [ 53.334132] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.334758] ksys_unshare+0x44d/0x8e0 [ 53.335278] ? __pfx_ksys_unshare+0x10/0x10 [ 53.335833] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.336578] __x64_sys_unshare+0x31/0x40 [ 53.337131] do_syscall_64+0x3f/0x90 [ 53.337615] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.338287] RIP: 0033:0x7fac4282c0d7 [ 53.338756] 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 [ 53.340928] RSP: 002b:00007ffd4cfbcb68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.341898] RAX: ffffffffffffffda RBX: 00007ffd4cfbd1a8 RCX: 00007fac4282c0d7 [ 53.342750] RDX: 00007fac4289641f RSI: 00007ffd4cfbcb00 RDI: 0000000040000000 [ 53.343633] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd4cfbc910 [ 53.344528] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fac4293ebf0 [ 53.345444] R13: 00007ffd4cfbcc40 R14: 0000000000000000 R15: 00000000000000f8 [ 53.346365] [ 53.346665] irq event stamp: 11975 [ 53.347138] hardirqs last enabled at (11987): [] __up_console_sem+0x78/0x80 [ 53.348202] hardirqs last disabled at (11998): [] __up_console_sem+0x5d/0x80 [ 53.349293] softirqs last enabled at (11528): [] irq_exit_rcu+0x93/0xc0 [ 53.350334] softirqs last disabled at (11523): [] irq_exit_rcu+0x93/0xc0 [ 53.351370] ---[ end trace 0000000000000000 ]--- [ 53.352690] ------------[ cut here ]------------ [ 53.353346] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 53.355313] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 53.356362] Modules linked in: [ 53.356761] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 53.357917] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 53.358915] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 53.359555] 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 [ 53.361701] RSP: 0018:ffff888020617bf0 EFLAGS: 00010286 [ 53.362390] RAX: 0000000000000000 RBX: ffff88800ddafe40 RCX: 0000000000000000 [ 53.363278] RDX: ffff88801ca53680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 53.364165] RBP: ffff88800ddafe54 R08: 0000000000000001 R09: 0000000000000000 [ 53.365050] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 53.365976] R13: ffffffff84e223a0 R14: ffff88800ddafe48 R15: ffffffff84daf020 [ 53.366835] FS: 0000555556099400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 53.367864] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.368585] CR2: 00007fc366057ba0 CR3: 000000000c63e000 CR4: 0000000000350ef0 [ 53.369506] Call Trace: [ 53.369865] [ 53.370169] nf_ct_net_init+0x224/0x3d0 [ 53.370693] ? __pfx_nf_ct_net_init+0x10/0x10 [ 53.371311] ops_init+0xbb/0x6b0 [ 53.371760] setup_net+0x3d9/0x990 [ 53.372246] ? down_read_killable+0x1d7/0x4e0 [ 53.372878] ? __pfx_setup_net+0x10/0x10 [ 53.373404] ? copy_net_ns+0x17c/0x770 [ 53.373942] copy_net_ns+0x321/0x770 [ 53.374420] create_new_namespaces+0x3f6/0xb30 [ 53.375041] unshare_nsproxy_namespaces+0xc1/0x200 [ 53.375653] ksys_unshare+0x44d/0x8e0 [ 53.376166] ? __pfx_ksys_unshare+0x10/0x10 [ 53.376716] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 53.377489] __x64_sys_unshare+0x31/0x40 [ 53.378036] do_syscall_64+0x3f/0x90 [ 53.378507] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 53.379184] RIP: 0033:0x7fac4282c0d7 [ 53.379661] 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 [ 53.381879] RSP: 002b:00007ffd4cfbcb68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 53.382799] RAX: ffffffffffffffda RBX: 00007ffd4cfbd1a8 RCX: 00007fac4282c0d7 [ 53.383675] RDX: 00007fac4289641f RSI: 00007ffd4cfbcb00 RDI: 0000000040000000 [ 53.384556] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd4cfbc910 [ 53.385459] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fac4293ebf0 [ 53.386344] R13: 00007ffd4cfbcc40 R14: 0000000000000000 R15: 00000000000000f8 [ 53.387299] [ 53.387604] irq event stamp: 12769 [ 53.388068] hardirqs last enabled at (12781): [] __up_console_sem+0x78/0x80 [ 53.389146] hardirqs last disabled at (12792): [] __up_console_sem+0x5d/0x80 [ 53.390260] softirqs last enabled at (12678): [] irq_exit_rcu+0x93/0xc0 [ 53.391318] softirqs last disabled at (12667): [] irq_exit_rcu+0x93/0xc0 [ 53.392409] ---[ end trace 0000000000000000 ]--- executing program [ 54.943520] Bluetooth: hci0: command 0x0409 tx timeout [ 56.990971] Bluetooth: hci0: command 0x041b tx timeout executing program [ 59.038978] Bluetooth: hci0: command 0x040f tx timeout executing program [ 61.086911] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:52:53 Registers: info registers vcpu 0 RAX=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880206175f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 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 0000555556099400 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=00007fc366057ba0 CR3=000000000c63e000 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=000000000003cbdb 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=00007fc365fe6610 CR3=000000000f076000 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=0000000000000000000000ff000000ff XMM02=0000000000000000000000ff000000ff XMM03=6465746e69615420302e726f74756365 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=392e36322020205b3e343c0030653200 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000