Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 35.013830] sshd (216) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:33233' (ECDSA) to the list of known hosts. 2023/05/17 12:31:43 fuzzer started 2023/05/17 12:31:43 dialing manager at localhost:44319 2023/05/17 12:31:43 checking machine... 2023/05/17 12:31:43 checking revisions... [ 37.152058] kmemleak: Automatic memory scanning thread ended 2023/05/17 12:31:44 testing simple program... [ 37.221505] cgroup: Unknown subsys name 'net' [ 37.317393] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 49.861149] audit: type=1400 audit(1684326716.731:6): 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 [ 50.976069] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.977729] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.980711] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.983882] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.986464] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.988209] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.380038] ------------[ cut here ]------------ [ 51.380764] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.382739] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.383982] Modules linked in: [ 51.384462] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.388660] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.389657] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.390321] 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 [ 51.392438] RSP: 0018:ffff88801f787c00 EFLAGS: 00010282 [ 51.393125] RAX: 0000000000000000 RBX: ffff88800c5bfc40 RCX: 0000000000000000 [ 51.393993] RDX: ffff888016901b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.394826] RBP: ffff88800c5bfc54 R08: 0000000000000001 R09: 0000000000000000 [ 51.395691] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.396543] R13: ffffffff84e23fe0 R14: ffff88800c5bfc48 R15: ffffffff84d74dc0 [ 51.397400] FS: 0000555555cc8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.398406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.399123] CR2: 0000558c2ad2458c CR3: 000000001a612000 CR4: 0000000000350ef0 [ 51.399977] Call Trace: [ 51.400295] [ 51.400586] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.401210] ipv4_frags_init_net+0x269/0x440 [ 51.401760] ops_init+0xbb/0x6b0 [ 51.402224] setup_net+0x3d9/0x990 [ 51.402663] ? down_read_killable+0x1d7/0x4e0 [ 51.403247] ? __pfx_setup_net+0x10/0x10 [ 51.403741] ? copy_net_ns+0x17c/0x770 [ 51.404267] copy_net_ns+0x321/0x770 [ 51.404737] create_new_namespaces+0x3f6/0xb30 [ 51.405333] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.405975] ksys_unshare+0x44d/0x8e0 [ 51.406452] ? __pfx_ksys_unshare+0x10/0x10 [ 51.407008] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.407698] __x64_sys_unshare+0x31/0x40 [ 51.408223] do_syscall_64+0x3f/0x90 [ 51.408686] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.409337] RIP: 0033:0x7fde5ee8b0d7 [ 51.409796] 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 [ 51.411885] RSP: 002b:00007fff7dc79268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.412800] RAX: ffffffffffffffda RBX: 00007fff7dc798a8 RCX: 00007fde5ee8b0d7 [ 51.413665] RDX: 00007fde5eef541f RSI: 00007fff7dc79200 RDI: 0000000040000000 [ 51.414517] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dc79010 [ 51.415381] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fde5ef9dbf0 [ 51.416232] R13: 00007fff7dc79340 R14: 0000000000000000 R15: 00000000000000f8 [ 51.417104] [ 51.417397] irq event stamp: 8929 [ 51.417820] hardirqs last enabled at (8939): [] __up_console_sem+0x78/0x80 [ 51.418846] hardirqs last disabled at (8950): [] __up_console_sem+0x5d/0x80 [ 51.419871] softirqs last enabled at (8890): [] irq_exit_rcu+0x93/0xc0 [ 51.420874] softirqs last disabled at (8885): [] irq_exit_rcu+0x93/0xc0 [ 51.422027] ---[ end trace 0000000000000000 ]--- [ 51.428262] ------------[ cut here ]------------ [ 51.428852] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.430494] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.431561] Modules linked in: [ 51.431990] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.433132] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.434161] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.434802] 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 [ 51.436989] RSP: 0018:ffff88801f787c00 EFLAGS: 00010282 [ 51.437651] RAX: 0000000000000000 RBX: ffff88800f503640 RCX: 0000000000000000 [ 51.438545] RDX: ffff888016901b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.439432] RBP: ffff88800f503654 R08: 0000000000000001 R09: 0000000000000000 [ 51.440314] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.441202] R13: ffffffff84e23fe0 R14: ffff88800f503648 R15: ffffffff84da7d60 [ 51.442093] FS: 0000555555cc8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.443084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.443785] CR2: 0000558c2ad2458c CR3: 000000001a612000 CR4: 0000000000350ef0 [ 51.444643] Call Trace: [ 51.444982] [ 51.445274] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.445886] ipv6_frags_init_net+0x206/0x3c0 [ 51.446455] ops_init+0xbb/0x6b0 [ 51.446887] setup_net+0x3d9/0x990 [ 51.447355] ? down_read_killable+0x1d7/0x4e0 [ 51.447907] ? __pfx_setup_net+0x10/0x10 [ 51.448438] ? copy_net_ns+0x17c/0x770 [ 51.448957] copy_net_ns+0x321/0x770 [ 51.449429] create_new_namespaces+0x3f6/0xb30 [ 51.450033] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.450632] ksys_unshare+0x44d/0x8e0 [ 51.451136] ? __pfx_ksys_unshare+0x10/0x10 [ 51.451668] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.452379] __x64_sys_unshare+0x31/0x40 [ 51.452880] do_syscall_64+0x3f/0x90 [ 51.453365] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.454024] RIP: 0033:0x7fde5ee8b0d7 [ 51.454475] 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 [ 51.456572] RSP: 002b:00007fff7dc79268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.457503] RAX: ffffffffffffffda RBX: 00007fff7dc798a8 RCX: 00007fde5ee8b0d7 [ 51.458370] RDX: 00007fde5eef541f RSI: 00007fff7dc79200 RDI: 0000000040000000 [ 51.459222] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dc79010 [ 51.460079] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fde5ef9dbf0 [ 51.460900] R13: 00007fff7dc79340 R14: 0000000000000000 R15: 00000000000000f8 [ 51.461785] [ 51.462104] irq event stamp: 11839 [ 51.462522] hardirqs last enabled at (11849): [] __up_console_sem+0x78/0x80 [ 51.463543] hardirqs last disabled at (11860): [] __up_console_sem+0x5d/0x80 [ 51.464574] softirqs last enabled at (11006): [] irq_exit_rcu+0x93/0xc0 [ 51.465579] softirqs last disabled at (11001): [] irq_exit_rcu+0x93/0xc0 [ 51.466592] ---[ end trace 0000000000000000 ]--- [ 51.467880] ------------[ cut here ]------------ [ 51.468481] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.470430] WARNING: CPU: 0 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.471502] Modules linked in: [ 51.471896] CPU: 0 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 51.473032] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.474023] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.474651] 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 [ 51.476736] RSP: 0018:ffff88801f787bf0 EFLAGS: 00010286 [ 51.477399] RAX: 0000000000000000 RBX: ffff88800f502840 RCX: 0000000000000000 [ 51.478282] RDX: ffff888016901b40 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 51.479157] RBP: ffff88800f502854 R08: 0000000000000001 R09: 0000000000000000 [ 51.480016] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.480844] R13: ffffffff84e23fe0 R14: ffff88800f502848 R15: ffffffff84db0aa0 [ 51.481731] FS: 0000555555cc8400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 51.482689] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.483410] CR2: 0000558c2ad2458c CR3: 000000001a612000 CR4: 0000000000350ef0 [ 51.484272] Call Trace: [ 51.484587] [ 51.484876] nf_ct_net_init+0x224/0x3d0 [ 51.485418] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.486012] ops_init+0xbb/0x6b0 [ 51.486449] setup_net+0x3d9/0x990 [ 51.486889] ? down_read_killable+0x1d7/0x4e0 [ 51.487476] ? __pfx_setup_net+0x10/0x10 [ 51.487997] ? copy_net_ns+0x17c/0x770 [ 51.488492] copy_net_ns+0x321/0x770 [ 51.488991] create_new_namespaces+0x3f6/0xb30 [ 51.489576] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.490199] ksys_unshare+0x44d/0x8e0 [ 51.490673] ? __pfx_ksys_unshare+0x10/0x10 [ 51.491230] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.491915] __x64_sys_unshare+0x31/0x40 [ 51.492444] do_syscall_64+0x3f/0x90 [ 51.492909] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.493567] RIP: 0033:0x7fde5ee8b0d7 [ 51.494045] 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 [ 51.496129] RSP: 002b:00007fff7dc79268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 51.497044] RAX: ffffffffffffffda RBX: 00007fff7dc798a8 RCX: 00007fde5ee8b0d7 [ 51.497885] RDX: 00007fde5eef541f RSI: 00007fff7dc79200 RDI: 0000000040000000 [ 51.498747] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff7dc79010 [ 51.499608] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fde5ef9dbf0 [ 51.500470] R13: 00007fff7dc79340 R14: 0000000000000000 R15: 00000000000000f8 [ 51.501353] [ 51.501662] irq event stamp: 12653 [ 51.502117] hardirqs last enabled at (12665): [] __up_console_sem+0x78/0x80 [ 51.503137] hardirqs last disabled at (12676): [] __up_console_sem+0x5d/0x80 [ 51.504181] softirqs last enabled at (12258): [] irq_exit_rcu+0x93/0xc0 [ 51.505194] softirqs last disabled at (12253): [] irq_exit_rcu+0x93/0xc0 [ 51.506202] ---[ end trace 0000000000000000 ]--- executing program [ 53.063469] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.110690] Bluetooth: hci0: command 0x041b tx timeout [ 57.158135] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.206018] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 12:31:58 Registers: info registers vcpu 0 RAX=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801f7875f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 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 0000555555cc8400 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=0000558c2ad2458c CR3=000000001a612000 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=0000000000028c8b RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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=00007fdd77acbe10 CR3=000000000ecf8000 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=ec528a652b5d99a02e4926cd72027319 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=3a3f746a86924326000000000013c988 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=4a20d8c40719352400000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000200020000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000