syzkaller login: [ 35.804097] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:19575' (ECDSA) to the list of known hosts. 2023/05/18 05:55:32 fuzzer started 2023/05/18 05:55:32 dialing manager at localhost:44319 2023/05/18 05:55:32 checking machine... 2023/05/18 05:55:32 checking revisions... [ 36.979904] kmemleak: Automatic memory scanning thread ended 2023/05/18 05:55:32 testing simple program... [ 37.043742] cgroup: Unknown subsys name 'net' [ 37.121472] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.897712] audit: type=1400 audit(1684389345.715:6): 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 [ 51.029112] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.031680] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.033025] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.037957] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.039765] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.041455] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.491932] ------------[ cut here ]------------ [ 51.492721] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.495021] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.496238] Modules linked in: [ 51.496727] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.502215] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.503363] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.504159] 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 [ 51.506629] RSP: 0018:ffff888020257c00 EFLAGS: 00010282 [ 51.507362] RAX: 0000000000000000 RBX: ffff88800d5b2440 RCX: 0000000000000000 [ 51.508381] RDX: ffff8880196b1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.509384] RBP: ffff88800d5b2454 R08: 0000000000000001 R09: 0000000000000000 [ 51.510408] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.511393] R13: ffffffff84e23fe0 R14: ffff88800d5b2448 R15: ffffffff84d74dc0 [ 51.512399] FS: 00005555566c4400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.513547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.514368] CR2: 00007f73ecfb06f4 CR3: 000000000dd04000 CR4: 0000000000350ee0 [ 51.515384] Call Trace: [ 51.515804] [ 51.516178] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.516941] ipv4_frags_init_net+0x269/0x440 [ 51.517656] ops_init+0xbb/0x6b0 [ 51.518176] setup_net+0x3d9/0x990 [ 51.518751] ? down_read_killable+0x1d7/0x4e0 [ 51.519419] ? __pfx_setup_net+0x10/0x10 [ 51.520048] ? copy_net_ns+0x17c/0x770 [ 51.520691] copy_net_ns+0x321/0x770 [ 51.521244] create_new_namespaces+0x3f6/0xb30 [ 51.521972] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.522738] ksys_unshare+0x44d/0x8e0 [ 51.523309] ? __pfx_ksys_unshare+0x10/0x10 [ 51.523987] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.524875] __x64_sys_unshare+0x31/0x40 [ 51.525474] do_syscall_64+0x3f/0x90 [ 51.526074] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.526871] RIP: 0033:0x7ff7927220d7 [ 51.527410] 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 [ 51.529965] RSP: 002b:00007ffd03919088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.531084] RAX: ffffffffffffffda RBX: 00007ffd039196c8 RCX: 00007ff7927220d7 [ 51.532141] RDX: 00007ff79278c41f RSI: 00007ffd03919020 RDI: 0000000040000000 [ 51.533158] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd03918e30 [ 51.534176] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ff792834bf0 [ 51.535186] R13: 00007ffd03919160 R14: 0000000000000000 R15: 00000000000000f8 [ 51.536242] [ 51.536625] irq event stamp: 8551 [ 51.537110] hardirqs last enabled at (8561): [] __up_console_sem+0x78/0x80 [ 51.538324] hardirqs last disabled at (8572): [] __up_console_sem+0x5d/0x80 [ 51.539556] softirqs last enabled at (8036): [] irq_exit_rcu+0x93/0xc0 [ 51.540715] softirqs last disabled at (7983): [] irq_exit_rcu+0x93/0xc0 [ 51.541858] ---[ end trace 0000000000000000 ]--- [ 51.548706] ------------[ cut here ]------------ [ 51.549350] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.551433] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.552693] Modules linked in: [ 51.553139] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.554378] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.555475] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.556214] 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 [ 51.558618] RSP: 0018:ffff888020257c00 EFLAGS: 00010282 [ 51.559352] RAX: 0000000000000000 RBX: ffff888009670240 RCX: 0000000000000000 [ 51.560356] RDX: ffff8880196b1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.561352] RBP: ffff888009670254 R08: 0000000000000001 R09: 0000000000000000 [ 51.562340] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.563318] R13: ffffffff84e23fe0 R14: ffff888009670248 R15: ffffffff84da7d60 [ 51.564309] FS: 00005555566c4400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.565382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.566184] CR2: 00007f73ecfb06f4 CR3: 000000000dd04000 CR4: 0000000000350ee0 [ 51.567162] Call Trace: [ 51.567551] [ 51.567886] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.568636] ipv6_frags_init_net+0x206/0x3c0 [ 51.569264] ops_init+0xbb/0x6b0 [ 51.569802] setup_net+0x3d9/0x990 [ 51.570299] ? down_read_killable+0x1d7/0x4e0 [ 51.570983] ? __pfx_setup_net+0x10/0x10 [ 51.571581] ? copy_net_ns+0x17c/0x770 [ 51.572150] copy_net_ns+0x321/0x770 [ 51.572725] create_new_namespaces+0x3f6/0xb30 [ 51.573380] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.574099] ksys_unshare+0x44d/0x8e0 [ 51.574714] ? __pfx_ksys_unshare+0x10/0x10 [ 51.575317] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.576155] __x64_sys_unshare+0x31/0x40 [ 51.576764] do_syscall_64+0x3f/0x90 [ 51.577286] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.578023] RIP: 0033:0x7ff7927220d7 [ 51.578570] 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 [ 51.580966] RSP: 002b:00007ffd03919088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.582014] RAX: ffffffffffffffda RBX: 00007ffd039196c8 RCX: 00007ff7927220d7 [ 51.583005] RDX: 00007ff79278c41f RSI: 00007ffd03919020 RDI: 0000000040000000 [ 51.583984] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd03918e30 [ 51.584994] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ff792834bf0 [ 51.585991] R13: 00007ffd03919160 R14: 0000000000000000 R15: 00000000000000f8 [ 51.586997] [ 51.587331] irq event stamp: 10453 [ 51.587845] hardirqs last enabled at (10465): [] __up_console_sem+0x78/0x80 [ 51.589051] hardirqs last disabled at (10476): [] __up_console_sem+0x5d/0x80 [ 51.590206] softirqs last enabled at (10280): [] irq_exit_rcu+0x93/0xc0 [ 51.591326] softirqs last disabled at (10271): [] irq_exit_rcu+0x93/0xc0 [ 51.592467] ---[ end trace 0000000000000000 ]--- [ 51.594011] ------------[ cut here ]------------ [ 51.594681] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.596840] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.597983] Modules linked in: [ 51.598422] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.599680] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.600780] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.601453] 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 [ 51.603715] RSP: 0018:ffff888020257bf0 EFLAGS: 00010286 [ 51.604404] RAX: 0000000000000000 RBX: ffff88800daec240 RCX: 0000000000000000 [ 51.605349] RDX: ffff8880196b1b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.606280] RBP: ffff88800daec254 R08: 0000000000000001 R09: 0000000000000000 [ 51.607209] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.608137] R13: ffffffff84e23fe0 R14: ffff88800daec248 R15: ffffffff84db0aa0 [ 51.609068] FS: 00005555566c4400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.610111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.610884] CR2: 00007f73ecfb06f4 CR3: 000000000dd04000 CR4: 0000000000350ee0 [ 51.611813] Call Trace: [ 51.612167] [ 51.612482] nf_ct_net_init+0x224/0x3d0 [ 51.613075] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.613708] ops_init+0xbb/0x6b0 [ 51.614176] setup_net+0x3d9/0x990 [ 51.614690] ? down_read_killable+0x1d7/0x4e0 [ 51.615277] ? __pfx_setup_net+0x10/0x10 [ 51.615839] ? copy_net_ns+0x17c/0x770 [ 51.616376] copy_net_ns+0x321/0x770 [ 51.616910] create_new_namespaces+0x3f6/0xb30 [ 51.617546] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.618187] ksys_unshare+0x44d/0x8e0 [ 51.618740] ? __pfx_ksys_unshare+0x10/0x10 [ 51.619315] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.620130] __x64_sys_unshare+0x31/0x40 [ 51.620725] do_syscall_64+0x3f/0x90 [ 51.621239] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.621960] RIP: 0033:0x7ff7927220d7 [ 51.622456] 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 [ 51.624788] RSP: 002b:00007ffd03919088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.625804] RAX: ffffffffffffffda RBX: 00007ffd039196c8 RCX: 00007ff7927220d7 [ 51.626753] RDX: 00007ff79278c41f RSI: 00007ffd03919020 RDI: 0000000040000000 [ 51.627694] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd03918e30 [ 51.628674] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ff792834bf0 [ 51.629625] R13: 00007ffd03919160 R14: 0000000000000000 R15: 00000000000000f8 [ 51.630595] [ 51.630910] irq event stamp: 11279 [ 51.631367] hardirqs last enabled at (11289): [] __up_console_sem+0x78/0x80 [ 51.632531] hardirqs last disabled at (11302): [] __up_console_sem+0x5d/0x80 [ 51.633666] softirqs last enabled at (10880): [] irq_exit_rcu+0x93/0xc0 [ 51.634766] softirqs last disabled at (10875): [] irq_exit_rcu+0x93/0xc0 [ 51.635866] ---[ end trace 0000000000000000 ]--- executing program [ 53.111233] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.158953] Bluetooth: hci0: command 0x041b tx timeout [ 57.207594] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.255401] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 05:55:47 Registers: info registers vcpu 0 RAX=fffff940000beec9 RBX=ffffea00005f7640 RCX=ffffffff816a7757 RDX=fffff940000beec9 RSI=0000000000000008 RDI=ffffea00005f7640 RBP=fffff940000beec8 RSP=ffff888016e1fb50 R8 =0000000000000000 R9 =fffff940000beec8 R10=ffffea00005f7647 R11=0000000000000001 R12=ffffffff84937be0 R13=ffff888016e1fdb8 R14=ffff88800f63de80 R15=0000000000000001 RIP=ffffffff8180f4af 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 =0000 0000000000000000 00000000 00000000 DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fcbed4bb900 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=00007fcbec935cb0 CR3=0000000016528000 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=494e4f544f4e4f4d5f454352554f535f XMM01=49545f43494e4f544f4e4f4d5f454352 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=b8216b01d6f48d4f000000000013b078 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=8be4dc921481b52000000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880202575f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 00005555566c4400 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=00007f73ecfb06f4 CR3=000000000dd04000 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