syzkaller login: [ 35.040639] sshd (219) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:31379' (ECDSA) to the list of known hosts. 2023/05/16 20:21:12 fuzzer started 2023/05/16 20:21:12 dialing manager at localhost:35573 2023/05/16 20:21:12 checking machine... 2023/05/16 20:21:12 checking revisions... [ 37.243470] kmemleak: Automatic memory scanning thread ended 2023/05/16 20:21:12 testing simple program... [ 37.312398] cgroup: Unknown subsys name 'net' [ 37.401830] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.099265] audit: type=1400 audit(1684268484.597:6): avc: denied { execmem } for pid=259 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.202564] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.205002] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.206577] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.210543] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.212906] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.214820] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.592052] ------------[ cut here ]------------ [ 50.593038] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.594850] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.595975] Modules linked in: [ 50.596409] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.601630] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.602718] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.603434] 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 [ 50.605741] RSP: 0018:ffff888016477c00 EFLAGS: 00010282 [ 50.606497] RAX: 0000000000000000 RBX: ffff8880100d0440 RCX: 0000000000000000 [ 50.607441] RDX: ffff8880147b8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.608387] RBP: ffff8880100d0454 R08: 0000000000000001 R09: 0000000000000000 [ 50.609334] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.610292] R13: ffffffff84e223a0 R14: ffff8880100d0448 R15: ffffffff84d73340 [ 50.611240] FS: 000055555617a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.612295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.613049] CR2: 00007f86c74246f4 CR3: 000000000da26000 CR4: 0000000000350ef0 [ 50.614024] Call Trace: [ 50.614410] [ 50.614730] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.615418] ipv4_frags_init_net+0x269/0x440 [ 50.616004] ops_init+0xbb/0x6b0 [ 50.616512] setup_net+0x3d9/0x990 [ 50.616987] ? down_read_killable+0x1d7/0x4e0 [ 50.617633] ? __pfx_setup_net+0x10/0x10 [ 50.618224] ? copy_net_ns+0x17c/0x770 [ 50.618761] copy_net_ns+0x321/0x770 [ 50.619303] create_new_namespaces+0x3f6/0xb30 [ 50.619923] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.620608] ksys_unshare+0x44d/0x8e0 [ 50.621160] ? __pfx_ksys_unshare+0x10/0x10 [ 50.621743] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.622559] __x64_sys_unshare+0x31/0x40 [ 50.623137] do_syscall_64+0x3f/0x90 [ 50.623651] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.624359] RIP: 0033:0x7f2e0e57f0d7 [ 50.624851] 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 [ 50.627157] RSP: 002b:00007ffe765bc168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.628169] RAX: ffffffffffffffda RBX: 00007ffe765bc7a8 RCX: 00007f2e0e57f0d7 [ 50.629070] RDX: 00007f2e0e5e941f RSI: 00007ffe765bc100 RDI: 0000000040000000 [ 50.630024] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe765bbf10 [ 50.630974] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e0e691bf0 [ 50.631924] R13: 00007ffe765bc240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.632887] [ 50.633241] irq event stamp: 9369 [ 50.633690] hardirqs last enabled at (9379): [] __up_console_sem+0x78/0x80 [ 50.634833] hardirqs last disabled at (9390): [] __up_console_sem+0x5d/0x80 [ 50.635952] softirqs last enabled at (9018): [] irq_exit_rcu+0x93/0xc0 [ 50.637037] softirqs last disabled at (9013): [] irq_exit_rcu+0x93/0xc0 [ 50.638150] ---[ end trace 0000000000000000 ]--- [ 50.644796] ------------[ cut here ]------------ [ 50.645502] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.647345] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.648459] Modules linked in: [ 50.648892] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.650156] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.651233] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.651910] 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 [ 50.654210] RSP: 0018:ffff888016477c00 EFLAGS: 00010282 [ 50.654900] RAX: 0000000000000000 RBX: ffff888010363240 RCX: 0000000000000000 [ 50.655846] RDX: ffff8880147b8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.656786] RBP: ffff888010363254 R08: 0000000000000001 R09: 0000000000000000 [ 50.657735] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.658699] R13: ffffffff84e223a0 R14: ffff888010363248 R15: ffffffff84da62e0 [ 50.659646] FS: 000055555617a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.660703] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.661493] CR2: 00007f86c74246f4 CR3: 000000000da26000 CR4: 0000000000350ef0 [ 50.662467] Call Trace: [ 50.662815] [ 50.663166] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.663811] ipv6_frags_init_net+0x206/0x3c0 [ 50.664434] ops_init+0xbb/0x6b0 [ 50.664909] setup_net+0x3d9/0x990 [ 50.665424] ? down_read_killable+0x1d7/0x4e0 [ 50.666024] ? __pfx_setup_net+0x10/0x10 [ 50.666575] ? copy_net_ns+0x17c/0x770 [ 50.667084] copy_net_ns+0x321/0x770 [ 50.667606] create_new_namespaces+0x3f6/0xb30 [ 50.668237] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.668868] ksys_unshare+0x44d/0x8e0 [ 50.669401] ? __pfx_ksys_unshare+0x10/0x10 [ 50.669983] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.670732] __x64_sys_unshare+0x31/0x40 [ 50.671295] do_syscall_64+0x3f/0x90 [ 50.671772] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.672450] RIP: 0033:0x7f2e0e57f0d7 [ 50.672921] 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 [ 50.675152] RSP: 002b:00007ffe765bc168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.676077] RAX: ffffffffffffffda RBX: 00007ffe765bc7a8 RCX: 00007f2e0e57f0d7 [ 50.676989] RDX: 00007f2e0e5e941f RSI: 00007ffe765bc100 RDI: 0000000040000000 [ 50.677910] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe765bbf10 [ 50.678803] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e0e691bf0 [ 50.679719] R13: 00007ffe765bc240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.680642] [ 50.680956] irq event stamp: 11379 [ 50.681427] hardirqs last enabled at (11391): [] __up_console_sem+0x78/0x80 [ 50.682508] hardirqs last disabled at (11402): [] __up_console_sem+0x5d/0x80 [ 50.683596] softirqs last enabled at (11288): [] irq_exit_rcu+0x93/0xc0 [ 50.684654] softirqs last disabled at (11283): [] irq_exit_rcu+0x93/0xc0 [ 50.685709] ---[ end trace 0000000000000000 ]--- [ 50.687063] ------------[ cut here ]------------ [ 50.687734] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.689728] WARNING: CPU: 0 PID: 260 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.690889] Modules linked in: [ 50.691357] CPU: 0 PID: 260 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.692581] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.693660] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.694385] 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 [ 50.696663] RSP: 0018:ffff888016477bf0 EFLAGS: 00010286 [ 50.697380] RAX: 0000000000000000 RBX: ffff888010362640 RCX: 0000000000000000 [ 50.698344] RDX: ffff8880147b8000 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.699279] RBP: ffff888010362654 R08: 0000000000000001 R09: 0000000000000000 [ 50.700218] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.701151] R13: ffffffff84e223a0 R14: ffff888010362648 R15: ffffffff84daf020 [ 50.702064] FS: 000055555617a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.703143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.703885] CR2: 00007f86c74246f4 CR3: 000000000da26000 CR4: 0000000000350ef0 [ 50.704826] Call Trace: [ 50.705202] [ 50.705514] nf_ct_net_init+0x224/0x3d0 [ 50.706062] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.706702] ops_init+0xbb/0x6b0 [ 50.707197] setup_net+0x3d9/0x990 [ 50.707672] ? down_read_killable+0x1d7/0x4e0 [ 50.708289] ? __pfx_setup_net+0x10/0x10 [ 50.708821] ? copy_net_ns+0x17c/0x770 [ 50.709375] copy_net_ns+0x321/0x770 [ 50.709901] create_new_namespaces+0x3f6/0xb30 [ 50.710544] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.711223] ksys_unshare+0x44d/0x8e0 [ 50.711734] ? __pfx_ksys_unshare+0x10/0x10 [ 50.712336] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.713076] __x64_sys_unshare+0x31/0x40 [ 50.713660] do_syscall_64+0x3f/0x90 [ 50.714206] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.714871] RIP: 0033:0x7f2e0e57f0d7 [ 50.715383] 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 [ 50.717652] RSP: 002b:00007ffe765bc168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.718667] RAX: ffffffffffffffda RBX: 00007ffe765bc7a8 RCX: 00007f2e0e57f0d7 [ 50.719601] RDX: 00007f2e0e5e941f RSI: 00007ffe765bc100 RDI: 0000000040000000 [ 50.720538] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe765bbf10 [ 50.721466] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2e0e691bf0 [ 50.722423] R13: 00007ffe765bc240 R14: 0000000000000000 R15: 00000000000000f8 [ 50.723396] [ 50.723712] irq event stamp: 12187 [ 50.724208] hardirqs last enabled at (12199): [] __up_console_sem+0x78/0x80 [ 50.725328] hardirqs last disabled at (12210): [] __up_console_sem+0x5d/0x80 [ 50.726474] softirqs last enabled at (11680): [] irq_exit_rcu+0x93/0xc0 [ 50.727575] softirqs last disabled at (11675): [] irq_exit_rcu+0x93/0xc0 [ 50.728664] ---[ end trace 0000000000000000 ]--- executing program [ 52.289846] Bluetooth: hci0: command 0x0409 tx timeout [ 54.337205] Bluetooth: hci0: command 0x041b tx timeout executing program [ 56.385171] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.433332] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 20:21:24 Registers: info registers vcpu 0 RAX=0000000000000043 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880164775f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000043 R11=0000000000000001 R12=0000000000000043 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 000055555617a400 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=00007f86c74246f4 CR3=000000000da26000 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=0000000000026b4d 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=00007f6bc7147370 CR3=000000000f1f6000 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=2036323a31323a30322036312079614d XMM01=5d3930343639352e30352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d39 XMM07=6e72656b2072656c6c616b7a79732036 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000