syzkaller login: [ 31.832396] sshd (211) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:64817' (ECDSA) to the list of known hosts. 2023/05/17 21:55:36 fuzzer started 2023/05/17 21:55:36 dialing manager at localhost:44319 2023/05/17 21:55:36 checking machine... 2023/05/17 21:55:36 checking revisions... [ 36.678603] kmemleak: Automatic memory scanning thread ended 2023/05/17 21:55:37 testing simple program... [ 36.745856] cgroup: Unknown subsys name 'net' [ 36.853494] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.844107] audit: type=1400 audit(1684360550.198:6): 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 [ 50.969960] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.971869] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.980146] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.985279] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.989128] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.990322] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.347715] ------------[ cut here ]------------ [ 51.348480] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.350486] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.352081] Modules linked in: [ 51.352619] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.354843] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.357658] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.358732] 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 [ 51.361439] RSP: 0018:ffff8880143cfc00 EFLAGS: 00010282 [ 51.362623] RAX: 0000000000000000 RBX: ffff88800eb28440 RCX: 0000000000000000 [ 51.364043] RDX: ffff88800fbd51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.365519] RBP: ffff88800eb28454 R08: 0000000000000001 R09: 0000000000000000 [ 51.366814] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.368178] R13: ffffffff84e23fe0 R14: ffff88800eb28448 R15: ffffffff84d74dc0 [ 51.369390] FS: 0000555557495400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.370721] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.371515] CR2: 00007f136709b6f4 CR3: 000000000fdc6000 CR4: 0000000000350ee0 [ 51.372746] Call Trace: [ 51.373246] [ 51.373678] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.374581] ipv4_frags_init_net+0x269/0x440 [ 51.375415] ops_init+0xbb/0x6b0 [ 51.376096] setup_net+0x3d9/0x990 [ 51.376737] ? down_read_killable+0x1d7/0x4e0 [ 51.377593] ? __pfx_setup_net+0x10/0x10 [ 51.378358] ? copy_net_ns+0x17c/0x770 [ 51.379118] copy_net_ns+0x321/0x770 [ 51.379803] create_new_namespaces+0x3f6/0xb30 [ 51.380668] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.381602] ksys_unshare+0x44d/0x8e0 [ 51.382334] ? __pfx_ksys_unshare+0x10/0x10 [ 51.383088] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.384120] __x64_sys_unshare+0x31/0x40 [ 51.384857] do_syscall_64+0x3f/0x90 [ 51.385573] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.386221] RIP: 0033:0x7fa0d32de0d7 [ 51.386667] 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 [ 51.388704] RSP: 002b:00007ffda9515418 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.389588] RAX: ffffffffffffffda RBX: 00007ffda9515a58 RCX: 00007fa0d32de0d7 [ 51.390433] RDX: 00007fa0d334841f RSI: 00007ffda95153b0 RDI: 0000000040000000 [ 51.391266] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffda95151c0 [ 51.392096] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa0d33f0bf0 [ 51.392897] R13: 00007ffda95154f0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.393764] [ 51.394079] irq event stamp: 9033 [ 51.394479] hardirqs last enabled at (9043): [] __up_console_sem+0x78/0x80 [ 51.395472] hardirqs last disabled at (9054): [] __up_console_sem+0x5d/0x80 [ 51.396455] softirqs last enabled at (8674): [] irq_exit_rcu+0x93/0xc0 [ 51.397411] softirqs last disabled at (8659): [] irq_exit_rcu+0x93/0xc0 [ 51.398385] ---[ end trace 0000000000000000 ]--- [ 51.403222] ------------[ cut here ]------------ [ 51.403797] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.405408] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.406424] Modules linked in: [ 51.406809] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.407878] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.408820] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.409455] 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 [ 51.411506] RSP: 0018:ffff8880143cfc00 EFLAGS: 00010282 [ 51.412174] RAX: 0000000000000000 RBX: ffff8880102dda40 RCX: 0000000000000000 [ 51.413003] RDX: ffff88800fbd51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.413833] RBP: ffff8880102dda54 R08: 0000000000000001 R09: 0000000000000000 [ 51.414666] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.415493] R13: ffffffff84e23fe0 R14: ffff8880102dda48 R15: ffffffff84da7d60 [ 51.416333] FS: 0000555557495400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.417260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.417964] CR2: 00007f136709b6f4 CR3: 000000000fdc6000 CR4: 0000000000350ee0 [ 51.418766] Call Trace: [ 51.419110] [ 51.419394] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.419999] ipv6_frags_init_net+0x206/0x3c0 [ 51.420528] ops_init+0xbb/0x6b0 [ 51.420980] setup_net+0x3d9/0x990 [ 51.421409] ? down_read_killable+0x1d7/0x4e0 [ 51.421994] ? __pfx_setup_net+0x10/0x10 [ 51.422475] ? copy_net_ns+0x17c/0x770 [ 51.422981] copy_net_ns+0x321/0x770 [ 51.423442] create_new_namespaces+0x3f6/0xb30 [ 51.424021] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.424606] ksys_unshare+0x44d/0x8e0 [ 51.425099] ? __pfx_ksys_unshare+0x10/0x10 [ 51.425620] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.426313] __x64_sys_unshare+0x31/0x40 [ 51.426800] do_syscall_64+0x3f/0x90 [ 51.427277] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.427905] RIP: 0033:0x7fa0d32de0d7 [ 51.428398] 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 [ 51.430533] RSP: 002b:00007ffda9515418 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.431456] RAX: ffffffffffffffda RBX: 00007ffda9515a58 RCX: 00007fa0d32de0d7 [ 51.432337] RDX: 00007fa0d334841f RSI: 00007ffda95153b0 RDI: 0000000040000000 [ 51.433210] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffda95151c0 [ 51.434106] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa0d33f0bf0 [ 51.434987] R13: 00007ffda95154f0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.435860] [ 51.436190] irq event stamp: 10625 [ 51.436620] hardirqs last enabled at (10635): [] __up_console_sem+0x78/0x80 [ 51.437661] hardirqs last disabled at (10646): [] __up_console_sem+0x5d/0x80 [ 51.438708] softirqs last enabled at (9598): [] netlink_insert+0x187/0x1820 [ 51.439779] softirqs last disabled at (9596): [] release_sock+0x1f/0x1b0 [ 51.440783] ---[ end trace 0000000000000000 ]--- [ 51.442133] ------------[ cut here ]------------ [ 51.442717] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.444555] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.445619] Modules linked in: [ 51.446053] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.447229] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.448233] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.448856] 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 [ 51.451027] RSP: 0018:ffff8880143cfbf0 EFLAGS: 00010286 [ 51.451664] RAX: 0000000000000000 RBX: ffff8880102dcc40 RCX: 0000000000000000 [ 51.452541] RDX: ffff88800fbd51c0 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.453425] RBP: ffff8880102dcc54 R08: 0000000000000001 R09: 0000000000000000 [ 51.454339] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.455206] R13: ffffffff84e23fe0 R14: ffff8880102dcc48 R15: ffffffff84db0aa0 [ 51.456095] FS: 0000555557495400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.457066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.457789] CR2: 00007f136709b6f4 CR3: 000000000fdc6000 CR4: 0000000000350ee0 [ 51.458665] Call Trace: [ 51.459016] [ 51.459316] nf_ct_net_init+0x224/0x3d0 [ 51.459817] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.460412] ops_init+0xbb/0x6b0 [ 51.460846] setup_net+0x3d9/0x990 [ 51.461324] ? down_read_killable+0x1d7/0x4e0 [ 51.461889] ? __pfx_setup_net+0x10/0x10 [ 51.462432] ? copy_net_ns+0x17c/0x770 [ 51.462957] copy_net_ns+0x321/0x770 [ 51.463434] create_new_namespaces+0x3f6/0xb30 [ 51.464036] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.464646] ksys_unshare+0x44d/0x8e0 [ 51.465166] ? __pfx_ksys_unshare+0x10/0x10 [ 51.465738] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.466477] __x64_sys_unshare+0x31/0x40 [ 51.467023] do_syscall_64+0x3f/0x90 [ 51.467486] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.468139] RIP: 0033:0x7fa0d32de0d7 [ 51.468595] 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 [ 51.470749] RSP: 002b:00007ffda9515418 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.471697] RAX: ffffffffffffffda RBX: 00007ffda9515a58 RCX: 00007fa0d32de0d7 [ 51.472580] RDX: 00007fa0d334841f RSI: 00007ffda95153b0 RDI: 0000000040000000 [ 51.473446] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffda95151c0 [ 51.474336] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fa0d33f0bf0 [ 51.475210] R13: 00007ffda95154f0 R14: 0000000000000000 R15: 00000000000000f8 [ 51.476111] [ 51.476407] irq event stamp: 11371 [ 51.476834] hardirqs last enabled at (11381): [] __up_console_sem+0x78/0x80 [ 51.477896] hardirqs last disabled at (11392): [] __up_console_sem+0x5d/0x80 [ 51.478959] softirqs last enabled at (11200): [] irq_exit_rcu+0x93/0xc0 [ 51.479978] softirqs last disabled at (11191): [] irq_exit_rcu+0x93/0xc0 [ 51.481008] ---[ end trace 0000000000000000 ]--- executing program [ 53.057629] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.105072] Bluetooth: hci0: command 0x041b tx timeout [ 57.153016] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.200987] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 21:55:51 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=ffff888010070344 RCX=1ffff1100200e054 RDX=0000000000000000 RSI=ffff888015882308 RDI=ffff88801007033c RBP=0000000000000020 RSP=ffff888009097840 R8 =0000000000000001 R9 =ffff88801007033c R10=ffff8880100702f3 R11=0000000000000001 R12=dffffc0000000000 R13=ffff88801007034c R14=ffff88801007033c R15=ffff888010070260 RIP=ffffffff8449701b RFL=00000246 [---Z-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 00007faf9689a700 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=00007f2aea834108 CR3=00000000159da000 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=2031353a35353a31322037312079614d XMM01=5d3931363235332e31352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d39 XMM07=6e72656b2072656c6c616b7a79732031 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000000d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880143cf618 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=000000000000000d R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd 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 0000555557495400 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=00007f136709b6f4 CR3=000000000fdc6000 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