syzkaller login: [ 44.711117] sshd (211) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:58334' (ECDSA) to the list of known hosts. 2023/05/17 10:52:38 fuzzer started 2023/05/17 10:52:38 dialing manager at localhost:44319 2023/05/17 10:52:38 checking machine... 2023/05/17 10:52:38 checking revisions... [ 51.720425] kmemleak: Automatic memory scanning thread ended 2023/05/17 10:52:38 testing simple program... [ 51.784030] cgroup: Unknown subsys name 'net' [ 51.867073] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 64.905164] audit: type=1400 audit(1684320771.901:6): 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 [ 66.017925] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 66.019408] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 66.022132] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 66.024781] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 66.027255] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 66.028386] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 66.400539] ------------[ cut here ]------------ [ 66.401334] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 66.403323] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.404620] Modules linked in: [ 66.405141] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 66.410237] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.411415] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.412221] 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 [ 66.414432] RSP: 0018:ffff88801e307c00 EFLAGS: 00010282 [ 66.415135] RAX: 0000000000000000 RBX: ffff88800c6e7840 RCX: 0000000000000000 [ 66.416019] RDX: ffff8880159d3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 66.416935] RBP: ffff88800c6e7854 R08: 0000000000000001 R09: 0000000000000000 [ 66.417826] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 66.418713] R13: ffffffff84e23fe0 R14: ffff88800c6e7848 R15: ffffffff84d74dc0 [ 66.419575] FS: 0000555555e5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.420596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.421337] CR2: 00007f03707086f4 CR3: 000000000d69a000 CR4: 0000000000350ee0 [ 66.422225] Call Trace: [ 66.422553] [ 66.422878] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 66.423499] ipv4_frags_init_net+0x269/0x440 [ 66.424087] ops_init+0xbb/0x6b0 [ 66.424536] setup_net+0x3d9/0x990 [ 66.425045] ? down_read_killable+0x1d7/0x4e0 [ 66.425618] ? __pfx_setup_net+0x10/0x10 [ 66.426150] ? copy_net_ns+0x17c/0x770 [ 66.426656] copy_net_ns+0x321/0x770 [ 66.427215] create_new_namespaces+0x3f6/0xb30 [ 66.427850] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.428463] ksys_unshare+0x44d/0x8e0 [ 66.428991] ? __pfx_ksys_unshare+0x10/0x10 [ 66.429538] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.430269] __x64_sys_unshare+0x31/0x40 [ 66.430815] do_syscall_64+0x3f/0x90 [ 66.431301] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.431974] RIP: 0033:0x7f875a9050d7 [ 66.432439] 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 [ 66.434614] RSP: 002b:00007ffdfc5c8348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 66.435564] RAX: ffffffffffffffda RBX: 00007ffdfc5c8988 RCX: 00007f875a9050d7 [ 66.436448] RDX: 00007f875a96f41f RSI: 00007ffdfc5c82e0 RDI: 0000000040000000 [ 66.437355] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdfc5c80f0 [ 66.438237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f875aa17bf0 [ 66.439117] R13: 00007ffdfc5c8420 R14: 0000000000000000 R15: 00000000000000f8 [ 66.440022] [ 66.440321] irq event stamp: 8277 [ 66.440777] hardirqs last enabled at (8289): [] __up_console_sem+0x78/0x80 [ 66.441832] hardirqs last disabled at (8300): [] __up_console_sem+0x5d/0x80 [ 66.442886] softirqs last enabled at (7848): [] irq_exit_rcu+0x93/0xc0 [ 66.443903] softirqs last disabled at (7833): [] irq_exit_rcu+0x93/0xc0 [ 66.444940] ---[ end trace 0000000000000000 ]--- [ 66.450214] ------------[ cut here ]------------ [ 66.450953] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 66.452600] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.453688] Modules linked in: [ 66.454094] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 66.455249] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.456249] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.456932] 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 [ 66.459119] RSP: 0018:ffff88801e307c00 EFLAGS: 00010282 [ 66.459801] RAX: 0000000000000000 RBX: ffff8880144c8c40 RCX: 0000000000000000 [ 66.460713] RDX: ffff8880159d3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 66.461576] RBP: ffff8880144c8c54 R08: 0000000000000001 R09: 0000000000000000 [ 66.462486] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 66.463405] R13: ffffffff84e23fe0 R14: ffff8880144c8c48 R15: ffffffff84da7d60 [ 66.464325] FS: 0000555555e5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.465327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.466077] CR2: 00007f03707086f4 CR3: 000000000d69a000 CR4: 0000000000350ee0 [ 66.466969] Call Trace: [ 66.467295] [ 66.467592] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 66.468238] ipv6_frags_init_net+0x206/0x3c0 [ 66.468835] ops_init+0xbb/0x6b0 [ 66.469284] setup_net+0x3d9/0x990 [ 66.469771] ? down_read_killable+0x1d7/0x4e0 [ 66.470341] ? __pfx_setup_net+0x10/0x10 [ 66.470877] ? copy_net_ns+0x17c/0x770 [ 66.471385] copy_net_ns+0x321/0x770 [ 66.471895] create_new_namespaces+0x3f6/0xb30 [ 66.472479] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.473144] ksys_unshare+0x44d/0x8e0 [ 66.473636] ? __pfx_ksys_unshare+0x10/0x10 [ 66.474206] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.474943] __x64_sys_unshare+0x31/0x40 [ 66.475459] do_syscall_64+0x3f/0x90 [ 66.475966] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.476621] RIP: 0033:0x7f875a9050d7 [ 66.477105] 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 [ 66.479275] RSP: 002b:00007ffdfc5c8348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 66.480225] RAX: ffffffffffffffda RBX: 00007ffdfc5c8988 RCX: 00007f875a9050d7 [ 66.481128] RDX: 00007f875a96f41f RSI: 00007ffdfc5c82e0 RDI: 0000000040000000 [ 66.482029] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdfc5c80f0 [ 66.482910] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f875aa17bf0 [ 66.483806] R13: 00007ffdfc5c8420 R14: 0000000000000000 R15: 00000000000000f8 [ 66.484726] [ 66.485027] irq event stamp: 10221 [ 66.485479] hardirqs last enabled at (10231): [] __up_console_sem+0x78/0x80 [ 66.486549] hardirqs last disabled at (10242): [] __up_console_sem+0x5d/0x80 [ 66.487617] softirqs last enabled at (9704): [] irq_exit_rcu+0x93/0xc0 [ 66.488653] softirqs last disabled at (9645): [] irq_exit_rcu+0x93/0xc0 [ 66.489695] ---[ end trace 0000000000000000 ]--- [ 66.491047] ------------[ cut here ]------------ [ 66.491630] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 66.493546] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 66.494631] Modules linked in: [ 66.495074] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 66.496245] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 66.497293] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 66.497977] 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 [ 66.500202] RSP: 0018:ffff88801e307bf0 EFLAGS: 00010286 [ 66.500909] RAX: 0000000000000000 RBX: ffff8880144c9240 RCX: 0000000000000000 [ 66.501817] RDX: ffff8880159d3680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 66.502738] RBP: ffff8880144c9254 R08: 0000000000000001 R09: 0000000000000000 [ 66.503615] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 66.504524] R13: ffffffff84e23fe0 R14: ffff8880144c9248 R15: ffffffff84db0aa0 [ 66.505452] FS: 0000555555e5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 66.506470] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.507221] CR2: 00007f03707086f4 CR3: 000000000d69a000 CR4: 0000000000350ee0 [ 66.508132] Call Trace: [ 66.508464] [ 66.508811] nf_ct_net_init+0x224/0x3d0 [ 66.509340] ? __pfx_nf_ct_net_init+0x10/0x10 [ 66.509957] ops_init+0xbb/0x6b0 [ 66.510406] setup_net+0x3d9/0x990 [ 66.510894] ? down_read_killable+0x1d7/0x4e0 [ 66.511463] ? __pfx_setup_net+0x10/0x10 [ 66.512001] ? copy_net_ns+0x17c/0x770 [ 66.512511] copy_net_ns+0x321/0x770 [ 66.513044] create_new_namespaces+0x3f6/0xb30 [ 66.513633] unshare_nsproxy_namespaces+0xc1/0x200 [ 66.514266] ksys_unshare+0x44d/0x8e0 [ 66.514788] ? __pfx_ksys_unshare+0x10/0x10 [ 66.515339] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 66.516078] __x64_sys_unshare+0x31/0x40 [ 66.516606] do_syscall_64+0x3f/0x90 [ 66.517105] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 66.517775] RIP: 0033:0x7f875a9050d7 [ 66.518239] 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 [ 66.520420] RSP: 002b:00007ffdfc5c8348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 66.521414] RAX: ffffffffffffffda RBX: 00007ffdfc5c8988 RCX: 00007f875a9050d7 [ 66.522327] RDX: 00007f875a96f41f RSI: 00007ffdfc5c82e0 RDI: 0000000040000000 [ 66.523230] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffdfc5c80f0 [ 66.524146] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f875aa17bf0 [ 66.525060] R13: 00007ffdfc5c8420 R14: 0000000000000000 R15: 00000000000000f8 [ 66.525995] [ 66.526302] irq event stamp: 11047 [ 66.526767] hardirqs last enabled at (11059): [] __up_console_sem+0x78/0x80 [ 66.527856] hardirqs last disabled at (11070): [] __up_console_sem+0x5d/0x80 [ 66.528958] softirqs last enabled at (10754): [] irq_exit_rcu+0x93/0xc0 [ 66.530011] softirqs last disabled at (10749): [] irq_exit_rcu+0x93/0xc0 [ 66.531061] ---[ end trace 0000000000000000 ]--- executing program [ 68.096136] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 70.143757] Bluetooth: hci0: command 0x041b tx timeout [ 72.191873] Bluetooth: hci0: command 0x040f tx timeout executing program [ 74.240753] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 10:52:40 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffffffff865fadf9 RCX=0000000000000001 RDX=1ffff1100d9c135f RSI=0000000000000000 RDI=ffffffff865fadf9 RBP=ffffffff865fadf9 RSP=ffff88806ce09a58 R8 =ffffffff864b07d8 R9 =ffffffff864b07dc R10=ffffffff85d35a17 R11=ffff88806ce09ae0 R12=ffff88806ce09b68 R13=0000000000000000 R14=ffffffff8542a780 R15=ffff88800dfa9670 RIP=ffffffff811fba20 RFL=00000286 [--S--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=00007fc1ec037108 CR3=000000000e0d4000 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=2033353a32353a30312037312079614d XMM01=5d3134313530342e36362020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d31 XMM07=6e72656b2072656c6c616b7a79732033 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff82507ef0 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801e307598 R8 =0000000000000004 R9 =0000000000000010 R10=0000000000000010 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0fe5bd1 R15=dffffc0000000000 RIP=ffffffff82507f45 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 0000555555e5b400 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=00007f03707086f4 CR3=000000000d69a000 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